JP2010514892A - 低温衝撃強度及び機械的強度に優れたポリカーボネート−ポリシロキサン共重合体樹脂組成物ならびにその製造方法 - Google Patents
低温衝撃強度及び機械的強度に優れたポリカーボネート−ポリシロキサン共重合体樹脂組成物ならびにその製造方法 Download PDFInfo
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- 229920001296 polysiloxane Polymers 0.000 title claims abstract description 36
- 239000011342 resin composition Substances 0.000 title claims abstract description 33
- 229920006026 co-polymeric resin Polymers 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 title description 6
- 229920000642 polymer Polymers 0.000 claims abstract description 31
- 125000005375 organosiloxane group Chemical group 0.000 claims abstract description 26
- 125000003700 epoxy group Chemical group 0.000 claims abstract description 18
- 229920005668 polycarbonate resin Polymers 0.000 claims abstract description 18
- 239000004431 polycarbonate resin Substances 0.000 claims abstract description 18
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 7
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 7
- -1 methylene, ethylene, propylene Chemical group 0.000 claims description 32
- 239000000203 mixture Substances 0.000 claims description 16
- 239000011258 core-shell material Substances 0.000 claims description 15
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 15
- 239000012744 reinforcing agent Substances 0.000 claims description 15
- 239000000126 substance Substances 0.000 claims description 14
- 125000000217 alkyl group Chemical group 0.000 claims description 12
- 125000003118 aryl group Chemical group 0.000 claims description 12
- 229920000578 graft copolymer Polymers 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- 239000005062 Polybutadiene Chemical class 0.000 claims description 10
- 229920002857 polybutadiene Chemical class 0.000 claims description 10
- 125000004209 (C1-C8) alkyl group Chemical group 0.000 claims description 9
- 125000002947 alkylene group Chemical group 0.000 claims description 9
- 229920001971 elastomer Polymers 0.000 claims description 9
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 9
- 239000005060 rubber Substances 0.000 claims description 9
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 8
- 229920001577 copolymer Polymers 0.000 claims description 8
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 7
- 239000005977 Ethylene Substances 0.000 claims description 7
- 239000000178 monomer Substances 0.000 claims description 7
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 5
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 5
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 5
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 claims description 5
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 claims description 5
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 5
- 238000004898 kneading Methods 0.000 claims description 5
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 5
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 5
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 4
- 229920002943 EPDM rubber Polymers 0.000 claims description 4
- 239000004609 Impact Modifier Substances 0.000 claims description 4
- 229920000800 acrylic rubber Chemical class 0.000 claims description 4
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 4
- UOCJDOLVGGIYIQ-PBFPGSCMSA-N cefatrizine Chemical group S([C@@H]1[C@@H](C(N1C=1C(O)=O)=O)NC(=O)[C@H](N)C=2C=CC(O)=CC=2)CC=1CSC=1C=NNN=1 UOCJDOLVGGIYIQ-PBFPGSCMSA-N 0.000 claims description 4
- 239000003063 flame retardant Substances 0.000 claims description 4
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical group O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 4
- 229920000058 polyacrylate Chemical class 0.000 claims description 4
- 229920000515 polycarbonate Polymers 0.000 claims description 4
- 239000004417 polycarbonate Substances 0.000 claims description 4
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 4
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 claims description 4
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 3
- 229910052736 halogen Inorganic materials 0.000 claims description 3
- 239000011256 inorganic filler Substances 0.000 claims description 3
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 3
- 238000006116 polymerization reaction Methods 0.000 claims description 3
- 125000004400 (C1-C12) alkyl group Chemical group 0.000 claims description 2
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 claims description 2
- 239000002216 antistatic agent Substances 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims description 2
- 239000000975 dye Substances 0.000 claims description 2
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical class C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 claims description 2
- 238000010559 graft polymerization reaction Methods 0.000 claims description 2
- 150000002367 halogens Chemical class 0.000 claims description 2
- 229920003049 isoprene rubber Polymers 0.000 claims description 2
- 239000000314 lubricant Substances 0.000 claims description 2
- 239000006082 mold release agent Substances 0.000 claims description 2
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- 150000003440 styrenes Chemical class 0.000 claims description 2
- 229920002554 vinyl polymer Polymers 0.000 claims description 2
- 125000005439 maleimidyl group Chemical class C1(C=CC(N1*)=O)=O 0.000 claims 2
- 230000000996 additive effect Effects 0.000 claims 1
- 150000002825 nitriles Chemical class 0.000 claims 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims 1
- 239000000049 pigment Substances 0.000 claims 1
- 239000012779 reinforcing material Substances 0.000 claims 1
- 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 description 10
- 239000008188 pellet Substances 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- XKZQKPRCPNGNFR-UHFFFAOYSA-N 2-(3-hydroxyphenyl)phenol Chemical compound OC1=CC=CC(C=2C(=CC=CC=2)O)=C1 XKZQKPRCPNGNFR-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 125000000524 functional group Chemical group 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 125000004203 4-hydroxyphenyl group Chemical group [H]OC1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 description 2
- 125000005250 alkyl acrylate group Chemical group 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000012662 bulk polymerization Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000004205 dimethyl polysiloxane Substances 0.000 description 2
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 2
- 238000010556 emulsion polymerization method Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 150000003141 primary amines Chemical group 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 2
- 150000003335 secondary amines Chemical group 0.000 description 2
- 125000006833 (C1-C5) alkylene group Chemical group 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- XBQRPFBBTWXIFI-UHFFFAOYSA-N 2-chloro-4-[2-(3-chloro-4-hydroxyphenyl)propan-2-yl]phenol Chemical compound C=1C=C(O)C(Cl)=CC=1C(C)(C)C1=CC=C(O)C(Cl)=C1 XBQRPFBBTWXIFI-UHFFFAOYSA-N 0.000 description 1
- SDDLEVPIDBLVHC-UHFFFAOYSA-N Bisphenol Z Chemical compound C1=CC(O)=CC=C1C1(C=2C=CC(O)=CC=2)CCCCC1 SDDLEVPIDBLVHC-UHFFFAOYSA-N 0.000 description 1
- 238000012695 Interfacial polymerization Methods 0.000 description 1
- PEEHTFAAVSWFBL-UHFFFAOYSA-N Maleimide Chemical compound O=C1NC(=O)C=C1 PEEHTFAAVSWFBL-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical group OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 1
- GYCMBHHDWRMZGG-UHFFFAOYSA-N Methylacrylonitrile Chemical compound CC(=C)C#N GYCMBHHDWRMZGG-UHFFFAOYSA-N 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- KYPYTERUKNKOLP-UHFFFAOYSA-N Tetrachlorobisphenol A Chemical compound C=1C(Cl)=C(O)C(Cl)=CC=1C(C)(C)C1=CC(Cl)=C(O)C(Cl)=C1 KYPYTERUKNKOLP-UHFFFAOYSA-N 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- BAPJBEWLBFYGME-UHFFFAOYSA-N acrylic acid methyl ester Natural products COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 1
- 125000005907 alkyl ester group Chemical group 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- VCCBEIPGXKNHFW-UHFFFAOYSA-N biphenyl-4,4'-diol Chemical group C1=CC(O)=CC=C1C1=CC=C(O)C=C1 VCCBEIPGXKNHFW-UHFFFAOYSA-N 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 150000004650 carbonic acid diesters Chemical class 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical group 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 229920005645 diorganopolysiloxane polymer Polymers 0.000 description 1
- QILSFLSDHQAZET-UHFFFAOYSA-N diphenylmethanol Chemical compound C=1C=CC=CC=1C(O)C1=CC=CC=C1 QILSFLSDHQAZET-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 125000005027 hydroxyaryl group Chemical group 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000001023 inorganic pigment Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 description 1
- 229920006030 multiblock copolymer Polymers 0.000 description 1
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000003505 polymerization initiator Substances 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- NHARPDSAXCBDDR-UHFFFAOYSA-N propyl 2-methylprop-2-enoate Chemical compound CCCOC(=O)C(C)=C NHARPDSAXCBDDR-UHFFFAOYSA-N 0.000 description 1
- 229920005604 random copolymer Polymers 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000010558 suspension polymerization method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
- C08G64/18—Block or graft polymers
- C08G64/186—Block or graft polymers containing polysiloxane sequences
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
- C08G64/42—Chemical after-treatment
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/045—Polysiloxanes containing less than 25 silicon atoms
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/14—Polysiloxanes containing silicon bound to oxygen-containing groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/42—Block-or graft-polymers containing polysiloxane sequences
- C08G77/445—Block-or graft-polymers containing polysiloxane sequences containing polyester sequences
- C08G77/448—Block-or graft-polymers containing polysiloxane sequences containing polyester sequences containing polycarbonate sequences
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L51/04—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to rubbers
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
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Abstract
Description
本発明のポリカーボネート樹脂は、下記化学式1で示されるジフェノールを、ホスゲン、ハロゲンホルメートまたは炭酸ジエステルと反応させることにより調製される。
本発明の樹脂組成物の調製に用いられるオルガノシロキサン重合体は、エポキシ基を含むオルガノシロキサン重合体である、下記化学式2、3または4で表される少なくとも1種のシロキサン重合体である。
本発明においては、衝撃強度を向上させるために一般の衝撃補強剤を選択的に用いることができる。
前記コア−シェルグラフト共重合体は、芳香族ビニル化合物、シアン化ビニル化合物、C1−C8アルキル(メタ)アクリレートエステル、無水マレイン酸、マレイミド及びこれらの混合物から選択される単量体をゴム重合体にグラフト重合することによって調製される、コア−シェルグラフト共重合体である。
エチレン/アルキル(メタ)アクリレート共重合体は、下記化学式5で表される。
重量平均分子量(Mw)が22,500のビスフェノールA型ポリカーボネートを用いた。
(B−1)前記化学式3のような構造式において、bが4であり;R3がメチル基であり;R4がメチレンであり;qが0であり、25℃で測定した動的粘度が15センチストークス(cSt)である、オルガノシロキサン重合体を用いた。
MBS系コア−シェルグラフト衝撃補強剤として、三菱レイヨン社製のMetablen C223Aを用いた。
下記表1に示す成分に酸化防止剤および熱安定剤を添加して通常の混合機で混合し、混合物をL/D=35、Φ=45mmの二軸押出器を用いてペレットに押出した。樹脂のペレットを10oz射出成形器を用いて280〜300℃で試片に成形した。
(1)常温アイゾッド衝撃強度:常温ノッチアイゾッド衝撃強度は、1/4”の厚さの試片について、前記試片を23℃、相対湿度50%で48時間放置した後、ASTM D256に従って測定した。
Claims (15)
- (A)熱可塑性ポリカーボネート樹脂約100重量部;及び
(B)エポキシ基を含むオルガノシロキサン重合体約0.1〜30重量部;
を含み、高い低温衝撃強度および高い機械的強度を有する、ポリカーボネート−ポリシロキサン共重合体樹脂組成物。 - 前記(B)エポキシ基を含むオルガノシロキサン重合体は、下記化学式2、3および4で表される少なくとも1種である、請求項1に記載のポリカーボネート−ポリシロキサン共重合体樹脂組成物:
- 前記(B)エポキシ基を含むオルガノシロキサン重合体のR1、R3及びR5は、互いに独立して、水素原子、メチル、エチル、プロピル、イソプロピル、ブチル、sec−ブチル、t−ブチル、イソブチル、イソアミルまたはt−アミルである、請求項2に記載のポリカーボネート−ポリシロキサン共重合体樹脂組成物。
- 前記(B)エポキシ基を含むオルガノシロキサン重合体のR2、R4及びR6は、メチレン、エチレン、プロピレン、イソプロピレン、ブチレン、sec−ブチレンまたはt−ブチレンである、請求項2に記載のポリカーボネート−ポリシロキサン共重合体樹脂組成物。
- 前記エポキシ基を含むオルガノシロキサン重合体のc:dの比が約99.5:0.5〜約55:45である、請求項2に記載のポリカーボネート−ポリシロキサン共重合体樹脂組成物。
- 前記(B)エポキシ基を含むオルガノシロキサン重合体の粘度は、25℃で、約1〜50,000cStである、請求項1に記載のポリカーボネート−ポリシロキサン共重合体樹脂組成物。
- ASTM D256に従って、1/4”の試片に対して23℃および−30℃で測定した衝撃強度が、それぞれ約18kgf・cm/cm以上および約15kgf・cm/cm以上であり、
ASTM D790に従って、厚さ1/4”の試片を用いて測定した曲げ弾性率が、約18,000kgf/cm2以上であり、
2mm×50mm×200mmのサイズの平板試片を−30℃で48時間放置した後に測定した脆性破壊率が約45%以下である、請求項1に記載のポリカーボネート−ポリシロキサン共重合体樹脂組成物。 - 約10重量部以下の(C)衝撃補強剤をさらに含む、請求項1に記載のポリカーボネート−ポリシロキサン共重合体樹脂組成物。
- 前記(C)衝撃補強剤は、芳香族ビニル化合物、シアン化ビニル化合物、C1−C8アルキル(メタ)アクリレートエステル、無水マレイン酸、マレイミド及びこれらの混合物からなる群から選択される単量体をゴム重合体にグラフト重合することによって調製されるコア−シェルグラフト共重合体である、請求項8に記載のポリカーボネート−ポリシロキサン共重合体樹脂組成物。
- 前記コア−シェルグラフト共重合体は、スチレン、α−メチルスチレン、ハロゲンまたはC1−C8アルキル置換スチレン、C1−C8アルキルメタクリレートエステル、C1−C8アルキルアクリレートエステル、アクリロニトリル、メタクリロニトリル、無水マレイン酸、およびC1−C4アルキルまたはフェニルN−置換マレイミドから選択される少なくとも1種の単量体約5〜95重量%を、ブタジエンゴム、アクリルゴム、エチレン/プロピレンゴム、スチレン/ブタジエンゴム、アクリロニトリル/ブタジエンゴム、イソプレンゴム、エチレン−プロピレン−ジエン単量体(EPDM)、ポリオルガノシロキサン/ポリアルキル(メタ)アクリレートゴム複合体、およびこれらの混合物からなる群から選択される少なくとも1種約5〜95重量%にグラフト重合することによって調製される、請求項9に記載のポリカーボネート−ポリシロキサン共重合体樹脂組成物。
- ASTM D256に従って、1/4”の試片に対して23℃および−30℃で測定した衝撃強度が、それぞれ約75kgf・cm/cm以上および約27kgf・cm/cm以上であり、
ASTM D790に従って、厚さ1/4”の試片を用いて測定した曲げ弾性率が約18,000kgf/cm2以上であり、
2mm×50mm×200mmのサイズの平板試片を−30℃で48時間放置した後に測定した脆性破壊率が約10%以下である、請求項10に記載のポリカーボネート−ポリシロキサン共重合体樹脂組成物。 - 前記(C)衝撃補強剤は、下記化学式5で表されるエチレン/アルキル(メタ)アクリレート共重合体である、請求項8に記載のポリカーボネート−ポリシロキサン共重合体樹脂組成物:
- 難燃剤、難燃補助剤、滑剤、離型剤、核形成剤、帯電防止剤、安定剤、補強材、無機充填剤、顔料、色素及びこれらの混合物からなる群から選択される添加剤をさらに含む、請求項8に記載のポリカーボネート−ポリシロキサン共重合体樹脂組成物。
- 請求項1〜13のいずれか1項に記載のポリカーボネート−ポリシロキサン共重合体樹脂組成物から製造された、成形品。
- 熱可塑性ポリカーボネート樹脂と、下記化学式2、3または4で表されるエポキシ基を含むオルガノシロキサン重合体とを溶融混練する段階と、
溶融混練した混合物を押出する段階と、
を含む、ポリカーボネート−ポリシロキサン共重合体の製造方法:
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