KR102725043B1 - 폴리에스테르 수지 조성물 및 이를 포함하는 이축 연신 폴리에스테르 필름 - Google Patents
폴리에스테르 수지 조성물 및 이를 포함하는 이축 연신 폴리에스테르 필름 Download PDFInfo
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- 229920001225 polyester resin Polymers 0.000 title claims abstract description 62
- 239000004645 polyester resin Substances 0.000 title claims abstract description 62
- 229920006267 polyester film Polymers 0.000 title claims abstract description 33
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000000203 mixture Substances 0.000 claims abstract description 25
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims abstract description 20
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims abstract description 16
- 150000002009 diols Chemical class 0.000 claims abstract description 14
- ORLQHILJRHBSAY-UHFFFAOYSA-N [1-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1(CO)CCCCC1 ORLQHILJRHBSAY-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000002425 crystallisation Methods 0.000 claims description 32
- 230000008025 crystallization Effects 0.000 claims description 32
- 238000002844 melting Methods 0.000 claims description 25
- 230000008018 melting Effects 0.000 claims description 25
- 238000001816 cooling Methods 0.000 claims description 14
- 230000009477 glass transition Effects 0.000 claims description 14
- 238000010521 absorption reaction Methods 0.000 claims description 7
- 230000014759 maintenance of location Effects 0.000 claims description 7
- 238000012360 testing method Methods 0.000 claims description 7
- 239000000155 melt Substances 0.000 claims description 5
- BNIWTJAVDJYTIJ-UHFFFAOYSA-N 1,3-dimethylnaphthalene-2,6-dicarboxylic acid Chemical compound OC(=O)C1=CC=C2C(C)=C(C(O)=O)C(C)=CC2=C1 BNIWTJAVDJYTIJ-UHFFFAOYSA-N 0.000 claims description 2
- HAYIPGIFANTODX-UHFFFAOYSA-N 4,6-dimethylbenzene-1,3-dicarboxylic acid Chemical compound CC1=CC(C)=C(C(O)=O)C=C1C(O)=O HAYIPGIFANTODX-UHFFFAOYSA-N 0.000 claims description 2
- 239000005001 laminate film Substances 0.000 claims description 2
- RXOHFPCZGPKIRD-UHFFFAOYSA-N naphthalene-2,6-dicarboxylic acid Chemical compound C1=C(C(O)=O)C=CC2=CC(C(=O)O)=CC=C21 RXOHFPCZGPKIRD-UHFFFAOYSA-N 0.000 claims description 2
- 230000000052 comparative effect Effects 0.000 description 25
- 229920000139 polyethylene terephthalate Polymers 0.000 description 17
- 239000005020 polyethylene terephthalate Substances 0.000 description 17
- 238000011156 evaluation Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 230000007062 hydrolysis Effects 0.000 description 6
- 238000006460 hydrolysis reaction Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 229920002799 BoPET Polymers 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- -1 Polyethylene terephthalate Polymers 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 238000005886 esterification reaction Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- DNIAPMSPPWPWGF-VKHMYHEASA-N (+)-propylene glycol Chemical compound C[C@H](O)CO DNIAPMSPPWPWGF-VKHMYHEASA-N 0.000 description 1
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 1
- YPFDHNVEDLHUCE-UHFFFAOYSA-N 1,3-propanediol Substances OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 description 1
- 229940035437 1,3-propanediol Drugs 0.000 description 1
- ISPYQTSUDJAMAB-UHFFFAOYSA-N 2-chlorophenol Chemical compound OC1=CC=CC=C1Cl ISPYQTSUDJAMAB-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- YIMQCDZDWXUDCA-UHFFFAOYSA-N [4-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1CCC(CO)CC1 YIMQCDZDWXUDCA-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical group [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000009998 heat setting Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 229920001123 polycyclohexylenedimethylene terephthalate Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000166 polytrimethylene carbonate Polymers 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007573 shrinkage measurement Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- DQWPFSLDHJDLRL-UHFFFAOYSA-N triethyl phosphate Chemical compound CCOP(=O)(OCC)OCC DQWPFSLDHJDLRL-UHFFFAOYSA-N 0.000 description 1
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
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/005—Shaping by stretching, e.g. drawing through a die; Apparatus therefor characterised by the choice of materials
-
- 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
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
- B29C55/12—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
- B29D7/01—Films or sheets
-
- 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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
- C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
- C08G63/181—Acids containing aromatic rings
- C08G63/183—Terephthalic acids
-
- 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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
- C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
- C08G63/199—Acids or hydroxy compounds containing cycloaliphatic rings
-
- 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
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/42—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes polyesters; polyethers; polyacetals
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/42—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes polyesters; polyethers; polyacetals
- H01B3/421—Polyesters
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- 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
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
- B29C55/12—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
- B29C55/14—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial successively
- B29C55/143—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial successively firstly parallel to the direction of feed and then transversely thereto
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
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- Medicinal Chemistry (AREA)
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- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
Description
도 2는 실시예 1(PCT) 및 비교예 1(PET)의 필름의 내가수분해율(고유점도 유지율) 측정 결과를 나타낸 그래프이다.
도 3는 실시예 1(PCT) 및 비교예 1(PET)의 필름의 내가수분해율(고유점도 유지율) 평가시 필름 표면을 촬영한 사진이다.
도 4는 실시예 1(PCT) 및 비교예 1(PET)의 올리고머 평가 전후의 필름 표면을 촬영한 사진이다.
실시예1 | 실시예2 | 실시예3 | 비교예1 | 비교예2 | 비교예3 | 비교예4 | 비교예5 | ||
PET (중량%) | 100 | ||||||||
PCT (중량%) | 100 | 100 | 100 | 100 | 100 | 100 | 100 | ||
IPA* (몰%) | 5 | 15 | 20 | 0 | 0 | 2 | 25 | 30 | |
Tg (℃) | 89 | 88 | 87 | 77 | 91 | 90 | 85 | 84 | |
Tcc (℃) | 133 | 142 | 150 | 140 | 130 | 131 | 161 | 172 | |
Tm (℃) | 281 | 266 | 257 | 255 | 288 | 285 | 245 | 234 | |
Tmc (℃) | 220 | 190 | 155 | 170 | 250 | 242 | 147 | 141 | |
투명한 미연신필름의 최대두께 (mm) | 1.0 | 1.1 | 1.1 | 1.2 | 0.1 | 0.3 | 1.1 | 1.1 | |
최대 연신율 (%) | MD | 3.6 | 3.6 | 3.6 | 3.8 | 2.3 | 2.8 | 3.0 | 3.0 |
TD | 3.8 | 3.8 | 3.8 | 4.0 | 2.5 | 3.0 | 3.2 | 3.2 | |
면적 열수축률 (%) | 150℃/30분 | 0.5 | 0.5 | 0.5 | 2.0 | 0.5 | 0.5 | 2.5 | 2.5 |
200℃/30분 | 1.0 | 1.0 | 1.0 | 3.0 | 2.0 | 2.0 | 4.0 | 4.0 | |
인장신율 유지율 (%) | P.C.T** 48시간 후 | 75 | - | - | 25 | - | - | - | - |
P.C.T** 60시간 후 | 60 | - | - | 15 | - | - | - | - | |
흡습율(%) | 0.36 | - | - | 1.26 | - | - | - | - | |
내가수분해율(%) | 91 | - | - | 17 | - | - | - | - | |
올리고머 평가 | 0 | - | - | 1.4 | - | - | - | - | |
절연파괴전압(kV) | 6.2 | - | - | 1.9 | - | - | - | - |
Claims (16)
- 테레프탈산 및 이소프탈산을 포함하는 디카르복실산 성분과, 디올 성분의 중축합물을 포함하는 폴리에스테르 수지를 포함하고,
상기 디올 성분은, 전체 디올 성분 100몰%에 대해, 사이클로헥산디메탄올만을 100몰%로 포함하고,
상기 폴리에스테르 수지는 용융온도가 250℃ 이상이고,
상기 폴리에스테르 수지는 용융온도(Tm) 및 용융결정화온도(Tmc)의 차(Tm-Tmc)가 61 내지 102 ℃이고,
상기 폴리에스테르 수지는 냉각결정화온도(Tcc) 및 유리전이온도(Tg)의 차(Tcc-Tg)가 44 내지 63 ℃인, 폴리에스테르 수지 조성물.
- 제1항에 있어서,
상기 이소프탈산의 함량은, 전체 디카르복실산 성분에 대하여, 3 내지 20몰%인, 폴리에스테르 수지 조성물.
- 제1항에 있어서,
상기 디카르복실산 성분은 2,6-나프탈렌디카르복실산, 디메틸 이소프탈산 및 디메틸 2,6-나프탈렌디카르복실산으로 이루어진 군에서 선택된 하나 이상의 기타 디카르복실산 성분을 더 포함하고,
상기 기타 디카르복실산 성분의 함량은, 전체 디카르복실산 성분에 대하여, 0.1 내지 20몰%인, 폴리에스테르 수지 조성물.
- 삭제
- 제1항에 있어서,
상기 디카르복실산 성분 및 디올 성분은 몰비가 1: 1 내지 2인, 폴리에스테르 수지 조성물.
- 제1항에 있어서,
상기 폴리에스테르 수지는 고유 점도(IV)가 0.4 내지 1.2dl/g인, 폴리에스테르 수지 조성물.
- 제1항에 있어서,
상기 폴리에스테르 수지는 수평균분자량이 15,000 내지 50,000 g/mol인, 폴리에스테르 수지 조성물.
- 제1항에 있어서,
상기 폴리에스테르 수지는 중량평균분자량이 50,000 내지 150,000 g/mol인, 폴리에스테르 수지 조성물.
- 제1항에 있어서,
상기 폴리에스테르 수지는 용융결정화온도가 150 내지 230℃인, 폴리에스테르 수지 조성물.
- 제1항 내지 제3항 및 제5항 내지 제9항 중 어느 한 항의 폴리에스테르 수지 조성물을 이용하여 형성되는, 이축 연신 폴리에스테르 필름.
- 제10항에 있어서,
상기 폴리에스테르 수지 조성물이 공압출된 2층 이상의 다층 필름 또는 라미네이트 필름인, 이축 연신 폴리에스테르 필름.
- 제10항에 있어서,
상기 이축 연신 폴리에스테르 필름은 플렉서블 플랫 케이블용인, 이축 연신 폴리에스테르 필름.
- 제10항에 있어서,
상기 이축 연신 폴리에스테르 필름은, 150℃에서 30분 동안 열수축률이 0.5% 미만이고, 200℃에서 30분 동안 열수축률이 1.0% 미만인, 이축 연신 폴리에스테르 필름.
- 제10항에 있어서,
상기 이축 연신 폴리에스테르 필름은 종방향(MD)에 대해 2 내지 5배로 연신되고, 횡방향(TD)에 대해 2 내지 5배로 연신된, 이축 연신 폴리에스테르 필름.
- 제10항에 있어서,
상기 이축 연신 폴리에스테르 필름은 121℃의 온도, 100%의 상대습도, 및 2atm의 기압 조건의 고온 고습 시험(Pressure Cooker Test)에서, 48시간 경과 후 인장신율 유지율이 50% 이상이고, 60시간 경과 후 인장신율 유지율이 30% 이상인, 이축 연신 폴리에스테르 필름.
- 제10항에 있어서,
상기 이축 연신 폴리에스테르 필름은 온도가 85℃이고, 상대습도가 85%일 때, 내흡습율이 1% 이하인, 이축 연신 폴리에스테르 필름.
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WO2021086082A1 (ko) * | 2019-10-31 | 2021-05-06 | 에스케이씨 주식회사 | 폴리에스테르 필름, 이의 제조 방법, 및 이를 이용한 폴리에틸렌테레프탈레이트 용기의 재생 방법 |
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KR102471679B1 (ko) * | 2021-01-26 | 2022-11-28 | 에스케이씨 주식회사 | 폴리에스테르계 필름, 이의 제조 방법 및 이를 포함하는 막전극 접합체 |
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KR102527488B1 (ko) | 2021-06-29 | 2023-05-04 | 에스케이마이크로웍스 주식회사 | 폴리에스테르 수지 조성물, 폴리에스테르 필름 및 전자장치용 적층체 |
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