JP6385317B2 - Glasses material - Google Patents
Glasses material Download PDFInfo
- Publication number
- JP6385317B2 JP6385317B2 JP2015163047A JP2015163047A JP6385317B2 JP 6385317 B2 JP6385317 B2 JP 6385317B2 JP 2015163047 A JP2015163047 A JP 2015163047A JP 2015163047 A JP2015163047 A JP 2015163047A JP 6385317 B2 JP6385317 B2 JP 6385317B2
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- Prior art keywords
- resin layer
- functional resin
- functional
- lens
- group
- Prior art date
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- 239000000463 material Substances 0.000 title claims description 51
- 239000011521 glass Substances 0.000 title claims description 30
- 239000011347 resin Substances 0.000 claims description 121
- 229920005989 resin Polymers 0.000 claims description 121
- 239000003795 chemical substances by application Substances 0.000 claims description 23
- 239000002994 raw material Substances 0.000 claims description 20
- 239000000758 substrate Substances 0.000 claims description 17
- 229920001187 thermosetting polymer Polymers 0.000 claims description 17
- 125000000217 alkyl group Chemical group 0.000 claims description 14
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 14
- 150000003553 thiiranes Chemical class 0.000 claims description 10
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 8
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 4
- LELKUNFWANHDPG-UHFFFAOYSA-N 2-(oxiran-2-ylmethoxymethyl)oxirane;prop-2-enoic acid Chemical compound OC(=O)C=C.C1OC1COCC1CO1 LELKUNFWANHDPG-UHFFFAOYSA-N 0.000 claims description 2
- 125000005907 alkyl ester group Chemical group 0.000 claims description 2
- 125000002947 alkylene group Chemical group 0.000 claims description 2
- 150000002009 diols Chemical class 0.000 claims description 2
- 229920001515 polyalkylene glycol Polymers 0.000 claims 1
- 239000010410 layer Substances 0.000 description 55
- 238000000465 moulding Methods 0.000 description 22
- 238000001723 curing Methods 0.000 description 12
- 238000012360 testing method Methods 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 10
- 230000001588 bifunctional effect Effects 0.000 description 9
- 150000001875 compounds Chemical class 0.000 description 9
- 239000000203 mixture Substances 0.000 description 9
- 239000000047 product Substances 0.000 description 9
- 239000006096 absorbing agent Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000012298 atmosphere Substances 0.000 description 6
- 238000009835 boiling Methods 0.000 description 6
- 229910001873 dinitrogen Inorganic materials 0.000 description 6
- -1 hydrogen compound Chemical class 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000006116 polymerization reaction Methods 0.000 description 6
- 238000011282 treatment Methods 0.000 description 6
- 239000012790 adhesive layer Substances 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 229920006295 polythiol Polymers 0.000 description 5
- 239000002202 Polyethylene glycol Substances 0.000 description 4
- 125000001931 aliphatic group Chemical group 0.000 description 4
- 238000004132 cross linking Methods 0.000 description 4
- 238000013007 heat curing Methods 0.000 description 4
- 229920001223 polyethylene glycol Polymers 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 125000002723 alicyclic group Chemical group 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 3
- 239000005056 polyisocyanate Substances 0.000 description 3
- 229920001228 polyisocyanate Polymers 0.000 description 3
- 239000004926 polymethyl methacrylate Substances 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- SHKUUQIDMUMQQK-UHFFFAOYSA-N 2-[4-(oxiran-2-ylmethoxy)butoxymethyl]oxirane Chemical compound C1OC1COCCCCOCC1CO1 SHKUUQIDMUMQQK-UHFFFAOYSA-N 0.000 description 2
- NXYWIOFCVGCOCB-UHFFFAOYSA-N 3-(2-sulfanylethylsulfanyl)-2-[3-sulfanyl-2-(2-sulfanylethylsulfanyl)propyl]sulfanylpropane-1-thiol Chemical compound SCCSCC(CS)SCC(CS)SCCS NXYWIOFCVGCOCB-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 2
- JOBBTVPTPXRUBP-UHFFFAOYSA-N [3-(3-sulfanylpropanoyloxy)-2,2-bis(3-sulfanylpropanoyloxymethyl)propyl] 3-sulfanylpropanoate Chemical compound SCCC(=O)OCC(COC(=O)CCS)(COC(=O)CCS)COC(=O)CCS JOBBTVPTPXRUBP-UHFFFAOYSA-N 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- QUZSUMLPWDHKCJ-UHFFFAOYSA-N bisphenol A dimethacrylate Chemical class C1=CC(OC(=O)C(=C)C)=CC=C1C(C)(C)C1=CC=C(OC(=O)C(C)=C)C=C1 QUZSUMLPWDHKCJ-UHFFFAOYSA-N 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 239000006082 mold release agent Substances 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229920005862 polyol Polymers 0.000 description 2
- 239000005077 polysulfide Substances 0.000 description 2
- 229920001021 polysulfide Polymers 0.000 description 2
- 150000008117 polysulfides Polymers 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000004383 yellowing Methods 0.000 description 2
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- ALVZNPYWJMLXKV-UHFFFAOYSA-N 1,9-Nonanediol Chemical compound OCCCCCCCCCO ALVZNPYWJMLXKV-UHFFFAOYSA-N 0.000 description 1
- IMQFZQVZKBIPCQ-UHFFFAOYSA-N 2,2-bis(3-sulfanylpropanoyloxymethyl)butyl 3-sulfanylpropanoate Chemical compound SCCC(=O)OCC(CC)(COC(=O)CCS)COC(=O)CCS IMQFZQVZKBIPCQ-UHFFFAOYSA-N 0.000 description 1
- JRKRMWWBDZSDMT-UHFFFAOYSA-N 2-[(thiiran-2-ylmethyldisulfanyl)methyl]thiirane Chemical compound C1SC1CSSCC1CS1 JRKRMWWBDZSDMT-UHFFFAOYSA-N 0.000 description 1
- QBBOYSKBAGVOCW-UHFFFAOYSA-N 7-methyloctane-1,1-diol Chemical compound CC(C)CCCCCC(O)O QBBOYSKBAGVOCW-UHFFFAOYSA-N 0.000 description 1
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 239000004594 Masterbatch (MB) Substances 0.000 description 1
- IYNSPMQELIIZJS-UHFFFAOYSA-N SC(C(=O)O)O.SC(C(=O)O)O.SC(C(=O)O)O.C(O)C(CC)(CO)CO Chemical compound SC(C(=O)O)O.SC(C(=O)O)O.SC(C(=O)O)O.C(O)C(CC)(CO)CO IYNSPMQELIIZJS-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- OQHMGFSAURFQAF-UHFFFAOYSA-N [2-hydroxy-3-(2-methylprop-2-enoyloxy)propyl] 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC(O)COC(=O)C(C)=C OQHMGFSAURFQAF-UHFFFAOYSA-N 0.000 description 1
- FWBPWUYZZNXFGQ-UHFFFAOYSA-N [3-(2-hydroxy-2-sulfanylacetyl)oxy-2,2-bis[(2-hydroxy-2-sulfanylacetyl)oxymethyl]propyl] 2-hydroxy-2-sulfanylacetate Chemical compound OC(S)C(=O)OCC(COC(=O)C(O)S)(COC(=O)C(O)S)COC(=O)C(O)S FWBPWUYZZNXFGQ-UHFFFAOYSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 210000005252 bulbus oculi Anatomy 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- SKOLWUPSYHWYAM-UHFFFAOYSA-N carbonodithioic O,S-acid Chemical class SC(S)=O SKOLWUPSYHWYAM-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 150000008371 chromenes Chemical class 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- FOTKYAAJKYLFFN-UHFFFAOYSA-N decane-1,10-diol Chemical compound OCCCCCCCCCCO FOTKYAAJKYLFFN-UHFFFAOYSA-N 0.000 description 1
- 239000002781 deodorant agent Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- AYOHIQLKSOJJQH-UHFFFAOYSA-N dibutyltin Chemical compound CCCC[Sn]CCCC AYOHIQLKSOJJQH-UHFFFAOYSA-N 0.000 description 1
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical compound C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000001261 isocyanato group Chemical group *N=C=O 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M methacrylate group Chemical group C(C(=C)C)(=O)[O-] CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000003505 polymerization initiator Substances 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 125000004434 sulfur atom Chemical group 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 125000002813 thiocarbonyl group Chemical group *C(*)=S 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 125000003396 thiol group Chemical group [H]S* 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C39/12—Making multilayered or multicoloured articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/22—Component parts, details or accessories; Auxiliary operations
- B29C39/24—Feeding the material into the mould
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
- C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
- C08F20/10—Esters
- C08F20/26—Esters containing oxygen in addition to the carboxy oxygen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
- C08F290/02—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
- C08F290/06—Polymers provided for in subclass C08G
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Ophthalmology & Optometry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Eyeglasses (AREA)
- Laminated Bodies (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Macromonomer-Based Addition Polymer (AREA)
Description
本発明は、樹脂成形体である有機ガラス基材(基材レンズ)の片面又は両面に機能性樹脂層が注型成形により一体化された眼鏡素材に関する。更に、詳しくは、有機ガラス基材が特定の熱硬化性樹脂原料で成形されるとともに、機能性樹脂層がフォトクロミック剤、さらには特定波長吸収剤(紫外線吸収剤、赤外線吸収剤等)のような高価な薬剤(機能性薬剤)を含む(メタ)アクリレート(以下「(M)Ac」と略すことがある。)系の熱硬化性樹脂原料(機能性樹脂層原料)で成形されている眼鏡素材(眼鏡レンズ)に係る発明である。 The present invention relates to a spectacle material in which a functional resin layer is integrated by cast molding on one side or both sides of an organic glass base material (base lens) that is a resin molded body. More specifically, the organic glass substrate is molded from a specific thermosetting resin raw material, and the functional resin layer is a photochromic agent, and further, a specific wavelength absorber (such as an ultraviolet absorber or an infrared absorber). Glasses material molded from thermosetting resin material (functional resin layer material) based on (meth) acrylate (hereinafter sometimes abbreviated as “(M) Ac”) containing expensive drug (functional drug) The present invention relates to (glasses lens).
ここで、眼鏡素材として、フォトクロミックレンズを例に採り説明するが、フォトクロミック剤を含有しないサングラス等にも適用可能である。 Here, a photochromic lens will be described as an example of the eyeglass material, but it can also be applied to sunglasses that do not contain a photochromic agent.
ここで、(M)Acとは、単官能〜4官能のアクリレート基およびメタクリレート基の一方又は双方を含む熱硬化性のモノマー乃至オリゴマーをいう。 Here, (M) Ac means a thermosetting monomer or oligomer containing one or both of monofunctional to tetrafunctional acrylate groups and methacrylate groups.
本願明細書で、「配合組成」は、特に断らない限り質量単位である。 In the present specification, “composition” is a mass unit unless otherwise specified.
従来のフォトクロミックレンズに関して、本願出願人と同一出願人に係る特許文献2〔0002〜0008〕を、編集を加えながら、次に引用する。なお、引用中の「特許文献1」は、本願明細書において〔特許文献1〕として記載したものに対応する。 Regarding a conventional photochromic lens, Patent Document 2 [0002 to 0008], which belongs to the same applicant as the present applicant, is cited below while editing. “Patent Document 1” being cited corresponds to what is described as [Patent Document 1] in the present specification.
「従来、フォトクロミックレンズは、レンズ(半製品)を成形(通常、注型成形)した後、顧客の処方度数に切削・研磨して製品としている。 “Traditionally, photochromic lenses are manufactured by molding (usually cast molding) a lens (semi-finished product) and then cutting and polishing it to the customer's prescribed frequency.
この製法では、切削時に成形レンズの相当部分を廃棄することになり、同時に添加された高価なフォトクロミック剤も廃棄されしまい不経済であった。 In this manufacturing method, a considerable part of the molded lens is discarded at the time of cutting, and at the same time, the expensive photochromic agent added is discarded, which is uneconomical.
さらに、フォトクロミックレンズが中程度以上の度付きレンズである場合、内外周の厚みの差から色調に濃淡差が発生してしまい、ファッション性の観点からも問題があった。 Furthermore, when the photochromic lens is a lens with a medium or higher degree, a difference in color tone is generated due to a difference in thickness between the inner and outer circumferences, and there is a problem from the viewpoint of fashion.
すなわち、可及的に薄く、厚み差が少なくて色調に濃淡差が発生し難い度付きレンズの製造方法が希求されている。 That is, there is a demand for a method of manufacturing a lens with a degree that is as thin as possible, has a small thickness difference, and hardly causes a difference in color tone.
そこで、特許文献1に記載されている下記製造方法を適用することが考えられる(〔0005〕参照)。 Therefore, it is conceivable to apply the following manufacturing method described in Patent Document 1 (see [0005]).
『少なくとも2種類の樹脂素材を用い屈折率が1.45以上の樹脂レンズを製造する方法であって、少なくとも1種類の樹脂素材を流動性のない成形体となし、該成形体の密着面にキャビティを形成し、該キャビティに前記樹脂素材とは性質の異なる別の素材原料を注入してキャビティ内で重合硬化させることにより、少なくとも2種類の性質の異なる樹脂素材が相互に密着し一体化した樹脂成型物を得て、該樹脂成型物から前記少なくとも2種類の性質の異なる樹脂素材の性質が相互に補完しあうことにより、表面反射特性、物性、染色性および加工性の少なくとも1種が向上したレンズを製造することを特徴とする。』 “A method of manufacturing a resin lens having a refractive index of 1.45 or more using at least two types of resin materials, wherein at least one type of resin material is formed as a non-flowable molded body, and a cavity is formed on the adhesion surface of the molded body. Resin molding in which at least two types of resin materials having different properties are closely attached to each other by injecting another material material having different properties from the resin material into the cavity and polymerizing and curing in the cavity A lens in which at least one of surface reflection characteristics, physical properties, dyeability, and processability is improved by obtaining a product and complementing the properties of the resin material having at least two different properties from the resin molding. It is characterized by manufacturing. ]
しかし、特許文献1では、同文献の表3「重合性密着テスト」に示される如く、基材レンズ:チオウレタン系樹脂(MR系)(ne=1.60)と機能性樹脂層:(M)Ac系樹脂(PMMA)(ne=1.55)の組み合わせでは、密着性は得難い。」 However, in Patent Document 1, as shown in Table 3 “Polymerization adhesion test” of the same document, the base lens: thiourethane resin (MR system) (ne = 1.60) and the functional resin layer: (M) Ac Adhesiveness is difficult to obtain with a combination of a series resin (PMMA) (ne = 1.55). "
上記のように基材レンズと機能性樹脂層との間に実用密着強度を有しない場合、接着剤層を基材レンズの機能性樹脂層形成面側に介在させることが考えられる。 As described above, when there is no practical adhesion strength between the base lens and the functional resin layer, an adhesive layer may be interposed on the functional resin layer forming surface side of the base lens.
例えば、特許文献2では、接着剤層を備えた樹脂レンズに係る下記構成の製造方法が提案されている。 For example, Patent Document 2 proposes a manufacturing method having the following configuration relating to a resin lens provided with an adhesive layer.
「基材レンズを第一モールドとし、該第一モールドの片面又は両面側に第二モールドを、所定間隙間を有するように、配するとともに、前記第一・第二モールド間の周面隙間をテーピング又はガスケットでシールしてキャビティを構成し、
該キャビティに機能性付与剤を含有させた液状樹脂原料を注入し機能性樹脂層を注型成形して、前記基材レンズと前記機能性樹脂層とを一体化する樹脂レンズの製造方法において、
前記機能性樹脂層の形成側面に熱可塑性エラストマーの接着剤層を形成した基材レンズを前記第一モールドとする、ことを特徴とする。」(特許文献2、請求項1等)。
“The base lens is the first mold, and the second mold is arranged on one or both sides of the first mold so as to have a gap between the first mold and the peripheral gap between the first and second molds. Seal with taping or gasket to form the cavity,
In the method for producing a resin lens, injecting a liquid resin raw material containing a functionality-imparting agent into the cavity and casting the functional resin layer, the base lens and the functional resin layer are integrated.
A base lens in which an adhesive layer of a thermoplastic elastomer is formed on a side surface on which the functional resin layer is formed is the first mold. (Patent Document 2, Claim 1 etc.).
しかし、特許文献2に記載のような、基材レンズ(有機ガラス基材)と機能性樹脂層との間に接着剤層が介在する場合は、有機ガラス基材に接着剤を塗布する必要があり、製造工数が嵩みやすい。 However, when an adhesive layer is interposed between the base lens (organic glass substrate) and the functional resin layer as described in Patent Document 2, it is necessary to apply an adhesive to the organic glass substrate. Yes, manufacturing man-hours are likely to increase.
更には、接着剤層の形成材料や厚みによっては、屈折異常や色むらが発生するおそれがある。 Furthermore, depending on the material and thickness of the adhesive layer, there is a risk that refraction abnormality or color unevenness may occur.
なお、特許文献1には、前述の如く、有機ガラス基材と前記機能性樹脂層が接着剤レスで実用密着強度を備えた一体化が可能とされている眼鏡素材(樹脂レンズ)が記載されているが、機能性樹脂層を(M)Ac樹脂で形成する場合、有機ガラス基材が(M)Ac系樹脂(アクリル樹脂:PMMA)のときを除き、チオウレタン系(ウレタン樹脂:MR6,7,8)又はエピスルフィド系(エポキシ樹脂:HIE)のとき、有機ガラス基材と機能性樹脂層との間に実用密着強度を有しないことが分かる(特許文献1、表3、MMAモノマーの列参照)。 In addition, as described above, Patent Document 1 describes a spectacle material (resin lens) in which an organic glass base material and the functional resin layer can be integrated with no adhesive and with practical adhesion strength. However, when the functional resin layer is formed of (M) Ac resin, thiourethane (urethane resin: MR6, MR6), except when the organic glass substrate is (M) Ac-based resin (acrylic resin: PMMA). 7, 8) or episulfide (epoxy resin: HIE), it can be seen that there is no practical adhesion strength between the organic glass substrate and the functional resin layer (Patent Document 1, Table 3, MMA monomer array) reference).
さらに、基材レンズおよび機能性樹脂層の双方とも(M)Ac系樹脂の組み合わせであっても、機能性樹脂層原料の重合性成分として、OH基含有アルキル(M)Acを含有しない場合は、レンズ外観に白濁が観察され、更には、密着性評価において有機ガラス基材と機能性樹脂層との間に実用密着強度を得難いことを確認している。 Furthermore, even when both the base lens and the functional resin layer are a combination of (M) Ac-based resins, the OH group-containing alkyl (M) Ac is not contained as a polymerizable component of the functional resin layer raw material. Further, white turbidity was observed in the lens appearance, and it was confirmed that practical adhesion strength was difficult to obtain between the organic glass substrate and the functional resin layer in the adhesion evaluation.
すなわち、眼鏡素材(製品レンズ)に係る密着性評価における煮沸試験(沸騰水1h浸漬)および万力試験(破壊するまで力を加える)の双方において、「剥がれ」が発生して、実用密着強度を得難いことを確認している(本願明細書の表2-1,2-2,2-3)。 That is, in both the boiling test (immersion for 1 h in boiling water) and the vise test (applying force until breakage) in the adhesion evaluation related to the eyeglass material (product lens), “peeling” occurs and the practical adhesion strength is improved. It has been confirmed that it is difficult to obtain (Tables 2-1, 2-2, 2-3 in the present specification).
本発明は、上記にかんがみて、有機ガラス基材と機能性樹脂層との間に、接着剤レスで実用密着強度を有する眼鏡素材を提供することを目的とする。 In view of the above, an object of the present invention is to provide an eyeglass material having practical adhesive strength without an adhesive between an organic glass substrate and a functional resin layer.
本発明者らは、上記課題を解決するために、鋭意開発に努力をする過程で、樹脂成形体である有機ガラス基材(基材レンズ)の片面又は両面に機能性樹脂層が注型成形により一体化された眼鏡素材において、下記構成の如く、特定有機ガラス基材と、特定(M)Ac樹脂組成物の熱硬化物からなる機能性樹脂層との組み合わせとすれば、上記課題を解決できることを知見して、下記構成の眼鏡素材に想到した。 In order to solve the above-mentioned problems, the present inventors have made a functional resin layer on one side or both sides of an organic glass base material (base lens) that is a resin molding in the process of earnest development. If the combination of the specific organic glass substrate and the functional resin layer made of the thermosetting product of the specific (M) Ac resin composition is used, the above-mentioned problem can be solved. Knowing what can be done, I came up with a spectacle material with the following structure.
樹脂成形体である有機ガラス基材の片面又は両面に、機能性薬剤を含む機能性樹脂層が注型成形により一体化された眼鏡素材において、
前記有機ガラス基材が、チオウレタン系、エピスルフィド系又は(メタ)アクリレート(以下、「(M)Ac」と略す。)系の熱硬化性樹脂原料で成形されるとともに、前記機能性樹脂層が(M)Ac系の熱硬化性樹脂原料(以下「機能性樹脂層原料」という。)で成形され、
該機能性樹脂層原料の重合性成分が、OH基含有アルキル(M)Acと、2官能以上を主体とするその他の(M)Acとからなるものとされて、該OH基含有アルキル(M)Acのアルキルエステル部が−CH 2 CH(OH)CH 2 −を有し、
前記有機ガラス基材と前記機能性樹脂層との間に、接着剤レスで実用密着強度を有する、ことを特徴とする。
In a spectacle material in which a functional resin layer containing a functional agent is integrated by casting on one or both sides of an organic glass substrate that is a resin molded body,
The organic glass substrate is molded from a thermosetting resin material of thiourethane type, episulfide type or (meth) acrylate (hereinafter abbreviated as “(M) Ac”) type, and the functional resin layer is (M) Molded with an Ac-based thermosetting resin material (hereinafter referred to as “functional resin layer material”),
The polymerizable component of the raw material of the functional resin layer is composed of OH group-containing alkyl (M) Ac and other (M) Ac mainly composed of two or more functions, and the OH group-containing alkyl (M ) Ac alkyl ester unit -CH 2 CH (OH) CH 2 - has,
Between the said organic glass base material and the said functional resin layer, it has practical adhesive strength without an adhesive agent.
以下、本発明の眼鏡素材(眼鏡レンズ)について、その製造方法の説明を伴いながら、説明する。ここでは、基材レンズの片面に機能性樹脂層を一体化する場合を例にとるが、両面に機能性樹脂層を一体化する場合も同様である。 Hereinafter, the eyeglass material (eyeglass lens) of the present invention will be described with a description of a manufacturing method thereof. Here, the case where the functional resin layer is integrated on one side of the base lens is taken as an example, but the same applies to the case where the functional resin layer is integrated on both sides.
(1)基材レンズの成形
基材レンズ11は、チオウレタン系、エピスルフィド系又は(M)Ac系から選択される熱硬化性樹脂材料で成形する。この成形方法は注型成形とする。
(1) Molding of base lens The
テーピング方式による成形では重合収縮により基材レンズ11の周面(コバ面)に凹凸が生じる。この周面に凹凸があると、後に実施する機能性樹脂層15をテーピング方式で成形する際、テーピング19によるキャビティ21の封止が十分にできず、機能性樹脂層15の液状樹脂原料がキャビティ21から漏出しボイドが形成されてしまうおそれがある。このため、注型成形後の基材レンズ11に対して必要最小限の周面切削を行う。なお、基材レンズ11の外径は、この後に機能性樹脂層15成形で使用する第二モールド17の外径と同じにする。
In molding by the taping method, unevenness is generated on the peripheral surface (edge surface) of the
上記基材レンズを形成する熱硬化性樹脂としては、後述の如く、機能性樹脂層を低屈折率乃至中屈折率(例えば、ne:1.45以上1.55未満)の(M)Acを使用するため、それ以上の屈折率を有すれば、中屈折率(例えば、1.50以上1.60未満)の(M)Acでもよい。基材レンズ薄肉化等の見地から、高屈折率(例えば、ne:1.60以上)の下記チオウレタン系樹脂(a)、エピスルフィド系樹脂(b)等の硫黄含有熱硬化性樹脂を使用することが望ましいが、後述の(c)(M)Ac系樹脂であってもよい。 As the thermosetting resin for forming the base lens, as described later, the functional resin layer uses (M) Ac having a low refractive index to a medium refractive index (for example, ne: 1.45 or more and less than 1.55), As long as it has a higher refractive index, (M) Ac having a medium refractive index (for example, 1.50 or more and less than 1.60) may be used. From the standpoint of thinning the base lens, etc., it is necessary to use sulfur-containing thermosetting resins such as the following thiourethane resins (a) and episulfide resins (b) with a high refractive index (for example, ne: 1.60 or more). Although desirable, (c) (M) Ac-based resins described later may be used.
(a)チオウレタン系樹脂とは、ポリウレタン結合(-NHCOO-)の酸素原子の少なくとも1個が硫黄原子に入れ替わった結合(-NHCOS-、-NHCSO-、-NHCSS-)を有するポリマー(樹脂)を意味する。該樹脂原料としては、ポリイソシアナト、ポリイソチオシアナト、ポリイソシアナトチオイソシアナトより選ばれる1種または2種以上とイソシアナト成分と、ポリチオールおよび適宜ポリオールより選ばれる1種または2種以上の公知の活性水素化合物成分とを適宜組み合わせた重合性成分を好適に使用できる(特開平8−208792号公報等参照)。 (a) A thiourethane resin is a polymer (resin) having a bond (-NHCOS-, -NHCSO-, -NHCSS-) in which at least one oxygen atom of a polyurethane bond (-NHCOO-) is replaced with a sulfur atom. Means. As the resin raw material, one or more selected from polyisocyanate, polyisothiocyanate, polyisocyanatothioisocyanate, isocyanato component, polythiol, and optionally one or more known polyols are used. A polymerizable component appropriately combined with the active hydrogen compound component can be suitably used (see JP-A-8-208792 and the like).
ここでポリイソシアナトとしては、脂肪族系、脂環式系、芳香族系及びそれらの誘導体さらにはそれらの炭素鎖の一部に硫黄を導入したスルフィド・ポリスルフィド・チオカルボニル(チオケトン)誘導体を母体化合物とするものを挙げることができる。これらのうちで、耐黄変性の見地から、脂肪族系又は脂環式系のポリイソシアナトが望ましい。 Here, polyisocyanates include aliphatic, alicyclic, aromatic, and derivatives thereof, and sulfide, polysulfide, and thiocarbonyl (thioketone) derivatives in which sulfur is introduced into part of their carbon chains. The compound can be mentioned. Of these, aliphatic or alicyclic polyisocyanates are desirable from the standpoint of yellowing resistance.
また、ポリチオールとしては、同様に脂肪族系、脂環式系、芳香族系及びそれらの誘導体さらにはそれらの炭素鎖の一部に硫黄を導入したスルフィド・ポリスルフィド・ポリチオエーテルを母体化合物とするものを挙げることができる。これらのうちで、耐黄変性の見地から、同様に脂肪族系又は脂環式系のポリオールが望ましい。 Similarly, polythiols include aliphatic, alicyclic, aromatic, and derivatives thereof, and sulfides, polysulfides, and polythioethers in which sulfur is introduced into a part of their carbon chains as a base compound. Can be mentioned. Of these, aliphatic or alicyclic polyols are desirable from the standpoint of yellowing resistance.
具体的には、下記構造式(1)で示されるポリチオエーテルを母体化合物とするものからなる又は主体とするものであることが望ましい。 Specifically, it is desirable that the polythioether represented by the following structural formula (1) is composed of or is mainly composed of a base compound.
他のポリチオールとしては、分岐炭化水素多価アルコールのω-メルカプト脂肪族カルボン酸の全置換エステルを好適に使用できる。 As other polythiols, a fully substituted ester of a ω-mercapto aliphatic carboxylic acid of a branched hydrocarbon polyhydric alcohol can be suitably used.
具体的には、トリメチロールプロパントリス(2-メルカプトグリコレート)、ペンタエリトリトールテトラキス(2-メルカプトグリコレート)、トリメチロールプロパントリス(3-メルカプトプロピオネート)、 ペンタエリトリトールテトラキス(3-メルカプトプロピオネート)等を挙げることができる。 Specifically, trimethylolpropane tris (2-mercaptoglycolate), pentaerythritol tetrakis (2-mercaptoglycolate), trimethylolpropane tris (3-mercaptopropionate), pentaerythritol tetrakis (3-mercaptopropioate) Nate) and the like.
(b)エピスルフィド系樹脂とは、ジチオエポキシ化合物と硬化剤と、さらには、その他の重合性化合物とを反応させて得られるポリマー(樹脂)を意味し、例えば、下記構造式(2)で示される直鎖アルキルスルフィド型ジチオエポキシ化合物を硬化させて得られる公知のものを使用できる(特開平9−110979号、特開平10−114764号公報等)。 (B) The episulfide resin means a polymer (resin) obtained by reacting a dithioepoxy compound, a curing agent, and another polymerizable compound. For example, it is represented by the following structural formula (2). A known product obtained by curing a straight-chain alkyl sulfide type dithioepoxy compound can be used (Japanese Patent Application Laid-Open Nos. 9-1110979, 10-114764, etc.).
上記硬化剤としては、通常のエポキシ樹脂用硬化剤であるアミン類、有機酸類、又は無機酸類を使用できる。 As the curing agent, amines, organic acids, or inorganic acids, which are ordinary epoxy resin curing agents, can be used.
(c)(M)Ac系樹脂としては、後述の「(4)機能性樹脂層の注型成形」の項において、機能性樹脂層原料の一方である「2官能以上を主体とするその他の(M)Ac」として例示したもの等を好適に使用できる。 (C) As the (M) Ac-based resin, in “(4) Cast molding of functional resin layer” described later, “other functionalities mainly composed of two or more functions” which are one of the functional resin layer raw materials. What was illustrated as (M) Ac "etc. can be used conveniently.
これらの基材レンズの熱硬化性樹脂原料には、眼球保護の見地から、汎用の紫外線吸収剤を添加することが望ましい。 From the viewpoint of protecting the eyeball, it is desirable to add a general-purpose ultraviolet absorber to the thermosetting resin material for these base lenses.
(2)キャビティの作成:
本実施形態の機能性樹脂層15の成形型のキャビティ21は、基材レンズを第一モールド11とし、該第一モールド11の片面側に略一定の所定隙間が形成されるように第二モールド17を配するとともに、第一・第二モールド11、17の周面隙間をテーピング19でシールして構成する。図例ではテーピング方式であるが、ガスケットシール方式でもよい。
(2) Creation of cavity:
The
また、第二モールド17は、通常、ガラス製とするが、ガラス製に限らず、セラミック製でもよく、更には、成形時耐熱性を有すれば樹脂製であってもよい。
The
また、キャビティ21の隙間(前記所定隙間)は、樹脂原料流動特性や機能性樹脂層15に要求される機能性付与度等により異なる。通常、注型成形性および機能性の観点から、機能性樹脂層15の肉厚が、0.2mm以上、望ましくは0.3mm以上、さらに望ましくは0.5mm以上とし、ファッション性、軽量化の観点から3mm以下、望ましくは1.5mm以下、さらに望ましくは1mm以下となるような隙間とする。
Further, the gap (the predetermined gap) between the
(3)機能性樹脂層の注型成形
機能性薬剤が添加された(M)Ac系の熱硬化性樹脂原料(以下「機能性樹脂層原料」)を、上記キャビティ21に注入し、加熱重合や紫外線(光)重合などの手段により硬化させて、機能性樹脂層15を基材レンズ11と一体化させる。
(3) Cast molding of functional resin layer (M) Ac-based thermosetting resin material (hereinafter referred to as “functional resin layer material”) to which a functional agent has been added is injected into the
ここで、機能性薬剤としては、通常、フォトクロミック剤を使用するが、フォトクロミック剤とともに又はそれを使用せずに、紫外線吸収剤や赤外線吸収剤等の特定波長吸収剤を使用することができる。これらの薬剤は、適宜溶剤に拡散させて、液状樹脂原料に混合する。 Here, although a photochromic agent is usually used as the functional agent, a specific wavelength absorber such as an ultraviolet absorber or an infrared absorber can be used with or without the photochromic agent. These chemicals are appropriately diffused in a solvent and mixed with the liquid resin raw material.
上記フォトクロミック剤としては、スピロピラン系化合物、スピロオキサジン系化合物、クロメン系化合物およびフルギド系化合物等を好適に使用できる。 As the photochromic agent, spiropyran compounds, spirooxazine compounds, chromene compounds, fulgide compounds, and the like can be suitably used.
ここで使用する機能性樹脂層原料の重合性成分を、OH基含有アルキル(M)Acと、2官能以上を主体とするその他の(M)Acとからなるものとする。 The polymerizable component of the functional resin layer raw material used here is composed of OH group-containing alkyl (M) Ac and other (M) Ac mainly composed of two or more functions.
ここで、OH基含有アルキル(M)Acとしては、単官能のOH基含有アルキル(M)Acであってもよいが、架橋密度確保等の見地から、2官能以上が望ましく、更には、アルキルエステル部が−CH2CH(OH)CH2−を有する、下記構造式(3)で示される、ヒドロキシアルキレンジオールジ(M)Ac、又は下記構造式(4)で示されるアルキレンジオールジグリシジルエーテルアクリレートが望ましい。理由は断定できないが、これらのOH基は、チオール基、エピスルフィド基更には加水分解性アクリレート等との反応性に富むためと推定される。 Here, the OH group-containing alkyl (M) Ac may be a monofunctional OH group-containing alkyl (M) Ac, but from the standpoint of ensuring the crosslinking density, it is preferably bifunctional or more. Hydroxyalkylenediol di (M) Ac represented by the following structural formula (3) or alkylenediol diglycidyl ether represented by the following structural formula (4), wherein the ester moiety has —CH 2 CH (OH) CH 2 —. Acrylate is desirable. The reason cannot be determined, but it is presumed that these OH groups are rich in reactivity with thiol groups, episulfide groups, hydrolyzable acrylates, and the like.
より具体的にヒドロキシアルキレンジオールジ(M)Acとしては、2-ヒドロキシ-1,3-ジメタクリロプロパン(「701A」)を挙げることができる。また、アルキレンジオールジグリシジルエーテルアクリレートとしては、1,4-ブタンジオールジグリシジルエーテルアクリレートを挙げることができる。 More specifically, examples of the hydroxyalkylenediol di (M) Ac include 2-hydroxy-1,3-dimethacrylopropane (“701A”). Examples of alkylene diol diglycidyl ether acrylate include 1,4-butanediol diglycidyl ether acrylate.
2官能を主体とするその他の(M)Acとしては、下記のような2官能〜4官能の汎用(M)Acを使用可能である。なお、熱硬化性(所要の架橋密度)を得られる限り、少量の単官能のアルキル(M)Ac(アルキル炭素数:1〜4)も併用可能である。 As the other (M) Ac mainly composed of bifunctional, the following bifunctional to tetrafunctional general-purpose (M) Ac can be used. In addition, as long as thermosetting (required crosslinking density) is obtained, a small amount of monofunctional alkyl (M) Ac (alkyl carbon number: 1 to 4) can be used in combination.
2官能:1,6-ヘキサンジオールジ(M)Ac、1,9-ノナンジオールジ(M)Ac、イソノナンジオールジ(M)Ac、1,10-デカンジオールジ(M)Ac、ネオペンチルグリコールジ(M)Ac、ポリエチレン・プロピレングリコールジジ(M)Ac類(EO数:3〜10、PO数:2〜8)、ジオキサン(M)Ac、ジアルコキシ化ビスフェノールAジ(M)Ac類(アルコキシ化数:2〜18(構造式(6)参照) Bifunctional: 1,6-hexanediol di (M) Ac, 1,9-nonanediol di (M) Ac, isononanediol di (M) Ac, 1,10-decandiol di (M) Ac, neopentyl glycol Di (M) Ac, polyethylene / propylene glycol didi (M) Ac (EO number: 3 to 10, PO number: 2 to 8), dioxane (M) Ac, dialkoxylated bisphenol A di (M) Ac ( Number of alkoxylations: 2 to 18 (see structural formula (6))
3官能:トリシクロデカノール(M)Ac、トリメチロールプロパン(M)Ac、グリセリン(M)Ac、トリメチロールプロパン(M)Ac Trifunctional: Tricyclodecanol (M) Ac, Trimethylolpropane (M) Ac, Glycerin (M) Ac, Trimethylolpropane (M) Ac
3〜4官能:アルコキシ化ペンタエリスリトール(M)Ac類、(アルコキシ化)ジトリメチロールプロパンアクリレート類、 3 to 4 functional groups: alkoxylated pentaerythritol (M) Acs, (alkoxylated) ditrimethylolpropane acrylates,
これらの内で、構造式(5)で代表されるポリエチレングリコールジ(M)Ac類(より具体的には、PEG平均分子量:#200〜#600の製品番号で上市されているもの)と、構造式(6)で代表されるジアルコキシ化ビスフェノールAジ(M)Ac類とを併用することが望ましい。 Among these, polyethylene glycol di (M) Acs represented by the structural formula (5) (more specifically, PEG average molecular weight: those marketed under a product number of # 200 to # 600), It is desirable to use in combination with dialkoxylated bisphenol A di (M) Acs represented by the structural formula (6).
ポリエチレングリコールジ(M)Ac類とビスフェノールAジ(M)Ac類を併用することにより、機能性樹脂層と基材レンズ間の熱膨張率差の低減及び透明性、更には耐熱性の向上が期待できるためである。 By using polyethylene glycol di (M) Ac and bisphenol A di (M) Ac together, the thermal expansion coefficient difference between the functional resin layer and the base lens can be reduced, and transparency and heat resistance can be improved. This is because it can be expected.
上記OH基含有アルキル(M)Acとその他の(M)Acとの比率は、それらの(M)Ac基数及び分子量更には反応基数等により異なるが、通常、前者/後者=2.5/97.5〜70/30、望ましくは前者/後者=10/90〜65/35部の範囲から適宜選択する。OH基含有アルキル(M)Acが過少では有機ガラス基材と機能性樹脂層との間に実用的密着強度を得難い。 The ratio of the OH group-containing alkyl (M) Ac and the other (M) Ac varies depending on the number of (M) Ac groups, the molecular weight, the number of reactive groups, etc., but usually the former / the latter = 2.5 / 97.5 to 70 / 30, preferably the former / the latter = 10/90 to 65/35 parts. If the OH group-containing alkyl (M) Ac is too small, it is difficult to obtain practical adhesion strength between the organic glass substrate and the functional resin layer.
なお、有機ガラス基材および機能性樹脂層の樹脂原料には、上記以外に、種々の添加剤、例えば、染料、青味付け(ブルーイング)剤、内部離型剤、消臭剤、酸化防止剤、安定剤、重合開始剤、硬化剤等を必要に応じて添加してもよい。なお、樹脂硬化(架橋重合)は、熱硬化重合、紫外線硬化重合等で行う。また、(M)Ac系の機能性樹脂層原料中に、フォトクロミック剤等の機能性薬剤がマスターバッチ的に添加されている場合でも、適宜、フォトクロミズムの要求特性により、フォトクロミック剤をさらに添加する場合がある。 In addition to the above, various additives such as dyes, bluing agents, internal mold release agents, deodorants, antioxidants may be used as the resin raw material for the organic glass substrate and functional resin layer. , Stabilizers, polymerization initiators, curing agents and the like may be added as necessary. The resin curing (crosslinking polymerization) is performed by thermosetting polymerization, ultraviolet curing polymerization, or the like. In addition, even when a functional agent such as a photochromic agent is added as a masterbatch to the (M) Ac-based functional resin layer raw material, a photochromic agent is appropriately added depending on the required characteristics of photochromism. There is.
(4)樹脂レンズの離型取り出し・後処理:
機能性樹脂層脂原料の架橋(重合)硬化により、機能性樹脂層15と基材レンズ(第一モールド)11とが一体化した成形品(樹脂レンズ)となる。該成形品を第二モールド17から離型することにより樹脂レンズを取り出す。
(4) Release and post-treatment of resin lens:
By the crosslinking (polymerization) curing of the functional resin layer fat raw material, a molded product (resin lens) in which the
こうして製造した機能性樹脂層15を備えた樹脂レンズの表面を、一般的に行われている強化塗膜(ハードコート)を塗布し、硬度等の改質処理することが望ましい。
It is desirable that the surface of the resin lens provided with the
さらに、防曇処理加工、反射防止加工、撥水処理加工、帯電防止処理加工等の汎用の表面処理を適宜施す。 Furthermore, general-purpose surface treatments such as antifogging treatment, antireflection treatment, water repellent treatment, and antistatic treatment are appropriately applied.
以下、本発明を、比較例群とともに実施例群に基づいて更に詳細に説明する。 Hereinafter, the present invention will be described in more detail based on an example group together with a comparative example group.
(1)基材レンズの成形
下記成形型に下記各種重合性樹脂原料を注入し、下記加熱硬化条件で成形した。なお、加熱硬化温度までは均一に重合させ、硬化後は成形品にクラック(ひび)等が発生しないように、除昇温・降温させたことは勿論である(機能性樹脂層の加熱硬化の場合も同様)。
(1) Molding of base lens The following various kinds of polymerizable resin raw materials were injected into the following mold and molded under the following heat curing conditions. It should be noted that the polymer is uniformly polymerized up to the heat-curing temperature, and after curing, the temperature is removed and lowered so that cracks (cracks) do not occur in the molded product (of the heat-curing of the functional resin layer). The same applies to cases).
・チオウレタン系、エピスルフィド系:120℃×2h
・(M)Ac系:80℃×1h
・ Thiourethane, episulfide: 120 ° C x 2h
・ (M) Ac system: 80 ℃ × 1h
<成形型>
下記仕様の凸面側モールドおよび凹面側モールドの2枚1組を中心間隔5.0mmとなるように粘着テープでテーピングして、基材レンズ成形用のキャビティを有する成形型を作成した。
<Molding mold>
A pair of a convex mold and a concave mold having the following specifications was taped with an adhesive tape so as to have a center distance of 5.0 mm, thereby producing a mold having a cavity for molding a base lens.
・凸面側モールド:ガラス製、φ80mm、R=66.16mm、CT=4.0mm
・凹面側モールド:ガラス製、φ80mm、R=66.16mm、CT=4.0mm
・ Convex side mold: Glass, φ80mm, R = 66.16mm, CT = 4.0mm
・ Concave side mold: Glass, φ80mm, R = 66.16mm, CT = 4.0mm
<基材レンズ材料(重合性樹脂原料)>
基材レンズ材料は、それぞれ下記のようにして調製したものを使用した。
<Base lens material (polymerizable resin raw material)>
The base lens materials used were prepared as follows.
1)チオウレタン系樹脂
2,5-ビシクロ[2,2,1]ヘプタンビス(メチルイソシアナト):100部に硬化剤(ジブチルチン系):0.1部、内部離型剤:2部、更に紫外線吸収剤:2.0部を液温15℃窒素ガス雰囲気下で1時間充分に撹拌した。その後、更にペンタエリスリトールテトラキス(3-メルカプトプロピオネート):50部と4,7-ビス(メルカプトメチル)-3,6,9-トリチア-1,11-ウンデカンジチオール:50部を添加し、更に窒素ガス雰囲気下で15℃に温度調節しながら1時間混合撹拌した。続いて、真空ポンプを用いて液温度15℃、133Paで撹拌しながら1時間脱気後、1μmフィルターでろ過して屈折率(ne)1.60のチオウレタン系の樹脂原料を調製した。
1) Thiourethane resin
2,5-bicyclo [2,2,1] heptanebis (methylisocyanato): 100 parts hardener (dibutyltin): 0.1 part, internal mold release agent: 2 parts, UV absorber: 2.0 parts liquid temperature The mixture was sufficiently stirred for 1 hour in a nitrogen gas atmosphere at 15 ° C. Thereafter, 50 parts of pentaerythritol tetrakis (3-mercaptopropionate): 50 parts and 4,7-bis (mercaptomethyl) -3,6,9-trithia-1,11-undecanedithiol: 50 parts were further added. The mixture was stirred for 1 hour while adjusting the temperature to 15 ° C. in a nitrogen gas atmosphere. Subsequently, the mixture was deaerated for 1 hour while stirring at a liquid temperature of 15 ° C. and 133 Pa using a vacuum pump, and then filtered through a 1 μm filter to prepare a thiourethane resin material having a refractive index (ne) of 1.60.
2)エピスルフィド系樹脂
ビス(2,3-エピチオプロピル)ジスルフィド:90部、4,7-ビス(メルカプトメチル)-3,6,9-トリチア-1,11-ウンデカンジチオール:10部を窒素ガス雰囲気下で15℃に温度調節しながら30分混合撹拌し、硬化剤(アミン系):0.3部、香気性付与剤:0.3部、更に紫外線吸収剤:1.5部をそれぞれ添加し、更に窒素ガス雰囲気下で15℃に温度調節しながら30分混合撹拌した。続いて、真空ポンプを用いて液温度15℃、133Paで撹拌しながら1時間脱気後、1μmフィルターでろ過して屈折率(ne)1.74のエピスルフィド系樹脂の樹脂原料を調製した。
2) Episulfide resin Bis (2,3-epithiopropyl) disulfide: 90 parts, 4,7-bis (mercaptomethyl) -3,6,9-trithia-1,11-undecanedithiol: 10 parts nitrogen gas Mix and stir for 30 minutes while adjusting the temperature to 15 ° C under atmosphere, add curing agent (amine system): 0.3 part, fragrance imparting agent: 0.3 part, further UV absorber: 1.5 part, and further nitrogen gas atmosphere The mixture was stirred for 30 minutes while adjusting the temperature to 15 ° C. Subsequently, the mixture was degassed for 1 hour with stirring at a liquid temperature of 15 ° C. and 133 Pa using a vacuum pump, and then filtered through a 1 μm filter to prepare a resin raw material of an episulfide resin having a refractive index (ne) of 1.74.
3)(M)Ac系樹脂
NK11P(日本清水産業製)(熱硬化性MMA):100部、窒素ガス雰囲気下で15℃に温度調節しながら30分混合撹拌し、分子量調整剤:4部、硬化剤(有機過酸化物):1.4部、紫外線吸収剤1.0部をそれぞれ添加し、更に窒素ガス雰囲気下で15℃に温度調節しながら30分混合撹拌した。続いて、真空ポンプを用いて液温度15℃、133Paで撹拌しながら1時間脱気後、1μmフィルターでろ過して屈折率(ne)1.56の(M)Ac系の樹脂原料を調製した。
3) (M) Ac resin NK11P (manufactured by Nippon Shimizu Sangyo) (thermosetting MMA): 100 parts, mixed and stirred for 30 minutes while adjusting the temperature to 15 ° C. under nitrogen gas atmosphere, molecular weight regulator: 4 parts, Curing agent (organic peroxide): 1.4 parts and 1.0 part of UV absorber were added, respectively, and further mixed and stirred for 30 minutes while adjusting the temperature to 15 ° C. in a nitrogen gas atmosphere. Subsequently, the mixture was degassed for 1 hour with stirring at a liquid temperature of 15 ° C. and 133 Pa using a vacuum pump, and then filtered through a 1 μm filter to prepare an (M) Ac-based resin material having a refractive index (ne) of 1.56.
(2)機能性樹脂層の注型成形
上記で調製した基材レンズ11を第一モールドとし、下記のように調製した成形型に、表2−1(実施例1群),表2−2(実施例2群)、表2−3(実施例3群)の組み合わせで、表1−1・1−2の機能性樹脂層原料を注入し、加熱硬化条件(90℃×2h)で重合させて、機能性樹脂層を注型成形した。
(2) Casting molding of functional resin layer The
<成形型>
上記基材レンズ用成形型で成形した基材レンズを第一モールド(凹面側)11とし、上記成形型で使用したのと同一仕様第二モールド(凸面側)17を用いて中心間隔が0.6mmとなるように粘着テープでテーピング19してキャビティ21(成形型)を作成した。
<Molding mold>
The base lens formed by the base lens mold is used as the first mold (concave side) 11 and the center interval is 0.6 mm using the same specification second mold (convex side) 17 used in the mold. A cavity 21 (molding die) was created by taping 19 with an adhesive tape.
なお、そのときの各モールドの仕様は、下記の通りである。
・第一モールド11:基材レンズ、φ80mm、R(接着面)=66.16mm、CT=5.0mm
・第二モールド17:ガラス製、φ80mm、R=66.16mm、CT=4.0mm
The specifications of each mold at that time are as follows.
・ First mold 11: Base lens, φ80mm, R (adhesion surface) = 66.16mm, CT = 5.0mm
・ Second mold 17: glass, φ80mm, R = 66.16mm, CT = 4.0mm
<機能性樹脂層原料>
表1−1及び表1−2に機能性樹脂層原料A-0〜A-14およびB-0〜B−8の各組成を示す。各表における(M)Acは、下記の通りである。
<Raw material for functional resin>
Tables 1-1 and 1-2 show the compositions of the functional resin layer raw materials A-0 to A-14 and B-0 to B-8. (M) Ac in each table is as follows.
なお、各(M)Acの表1−1及び表1−2におけるタイトルは、各(M)Acの市販品名(営業秘密)の全部又は一部を借用したものである。 The titles of each (M) Ac in Table 1-1 and Table 1-2 are borrowed from all or part of the commercial product names (trade secrets) of each (M) Ac.
1)OH基含有アルキル(M)Ac
「701A」:2-ヒドロキシ-1,3-ジメタクリロキシプロパン(2官能)(構造式(3)参照)
「EA5520」:1,4-ブタンジオールジグリシジルエーテルアクリレート(2官能)(構造式(4)参照)
1) OH group-containing alkyl (M) Ac
“701A”: 2-hydroxy-1,3-dimethacryloxypropane (bifunctional) (see structural formula (3))
“EA5520”: 1,4-butanediol diglycidyl ether acrylate (bifunctional) (see structural formula (4))
2)その他の(M)Ac
「FM220M」:ポリエチレングリコール♯200ジメタクリレート(2官能)(構造式(5)参照)
「BPE900」:エトキシ化ビスフェノールAジメタクリレート(EO数:17)(2官能)(構造式(6)参照)
「BPE500」:エトキシ化ビスフェノールAジメタクリレート(EO数:10)(2官能)(構造式(6)参照)
「500PRE」:(M)Ac系のフォトクロミック機能レンズ原料(株式会社トクヤマ製品名)(熱硬化性PMMA)
2) Other (M) Ac
“FM220M”: polyethylene glycol # 200 dimethacrylate (bifunctional) (see structural formula (5))
“BPE900”: ethoxylated bisphenol A dimethacrylate (EO number: 17) (bifunctional) (see structural formula (6))
“BPE500”: ethoxylated bisphenol A dimethacrylate (EO number: 10) (bifunctional) (see structural formula (6))
“500PRE”: (M) Ac-based photochromic functional lens material (Tokuyama Co., Ltd. product name) (thermosetting PMMA)
(3)評価試験:
上記で調製したフォトクロミックレンズ(眼鏡レンズ;眼鏡素材)について下記試験方法により評価した。
(3) Evaluation test:
The photochromic lens (eyeglass lens; eyeglass material) prepared above was evaluated by the following test method.
<試験方法>
上記で得た各試料について、下記項目の評価試験を行った。
<Test method>
About each sample obtained above, the evaluation test of the following item was done.
・レンズ外観:目視により外観を観察し、綺麗であるものを「良好」、白濁が観察されるものを「白濁」とした。 -Lens appearance: The appearance was visually observed, and those that were beautiful were defined as "good" and those that were observed as white turbidity were defined as "white turbidity".
・密着性(煮沸試験):沸騰水中に60分浸漬後、機能性樹脂層と基材との剥れ有無を目視観察した。 -Adhesion (boiling test): After immersion in boiling water for 60 minutes, the presence or absence of peeling between the functional resin layer and the substrate was visually observed.
・密着性(万力試験):試料(中心厚2mm平面レンズ)の両面中央から万力で破壊するまで力を加え、界面における「剥がれ」(部分的な場合を含む。)の有無を観察した。 -Adhesion (vise test): A force was applied from the center of both sides of the sample (center thickness 2 mm flat lens) until it was destroyed with a vise, and the presence or absence of "peeling" (including partial cases) at the interface was observed. .
<結果考察>
上記評価試験の結果を表2−1・2−2・2−3に示す。
<Consideration of results>
The results of the evaluation test are shown in Tables 2-1, 2-2, and 2-3.
1)レンズ外観
各実施例群のレンズは、いずれにおいても、白濁が観察されず良好であったのに対し、比較例群のレンズは、いずれも白濁が観察された。
1) Appearance of lens In each of the examples, the lenses in each example group were good with no white turbidity observed, whereas in the comparative example group, all the white turbidity was observed.
2)密着性
各実施例群は、機能性樹脂層と基材レンズとの間の密着性において、煮沸試験及び万力試験のいずれにおいても、問題がない(剥がれが発生せず良好)ことが確認できた。
2) Adhesiveness Each Example group has no problem in the adhesiveness between the functional resin layer and the base lens in either the boiling test or the vise test (no peeling occurs and good). It could be confirmed.
これに対して、各比較例群は、機能性樹脂層と基材レンズとの間の密着性において、沸試験及び万力試験のいずれにおいても、問題(剥がれが発生)があった。 On the other hand, each comparative example group had a problem (peeling occurred) in the adhesion between the functional resin layer and the base lens in both the boiling test and the vise test.
11 基材レンズ(有機ガラス基材)(第一モールド)
15 機能性樹脂層
17 第二モールド
19 テーピング
21 キャビティ
11 Substrate lens (organic glass substrate) (first mold)
15
Claims (7)
前記有機ガラス基材が、チオウレタン系、エピスルフィド系又は(メタ)アクリレート(以下、「(M)Ac」と略す。)系の熱硬化性樹脂原料で成形されるとともに、前記機能性樹脂層が(M)Ac系の熱硬化性樹脂原料(以下「機能性樹脂層原料」という。)で成形され、
該機能性樹脂層原料の重合性成分が、OH基含有アルキル(M)Acと、2官能以上を主体とするその他の(M)Acとからなるものとされて、該OH基含有アルキル(M)Acのアルキルエステル部が−CH 2 CH(OH)CH 2 −を有し、
前記有機ガラス基材と前記機能性樹脂層との間に、接着剤レスで実用密着強度を有する、ことを特徴とする眼鏡素材。 In a spectacle material in which a functional resin layer containing a functional agent is integrated by casting on one or both sides of an organic glass substrate that is a resin molded body,
The organic glass substrate is molded from a thermosetting resin material of thiourethane type, episulfide type or (meth) acrylate (hereinafter abbreviated as “(M) Ac”) type, and the functional resin layer is (M) Molded with an Ac-based thermosetting resin material (hereinafter referred to as “functional resin layer material”),
The polymerizable component of the raw material of the functional resin layer is composed of OH group-containing alkyl (M) Ac and other (M) Ac mainly composed of two or more functions, and the OH group-containing alkyl (M ) Ac alkyl ester unit -CH 2 CH (OH) CH 2 - has,
Wherein between the organic glass base material and the functional resin layer, it has utility adhesion strength less adhesive, glasses material characterized by and this.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015163047A JP6385317B2 (en) | 2015-08-20 | 2015-08-20 | Glasses material |
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CN112812667A (en) * | 2019-10-31 | 2021-05-18 | 天元清水光学(上海)有限公司 | Functional resin layer and preparation process of functional resin layer applied to blue-light-proof lens |
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