KR101562273B1 - Optical polyester film - Google Patents
Optical polyester film Download PDFInfo
- Publication number
- KR101562273B1 KR101562273B1 KR1020080072868A KR20080072868A KR101562273B1 KR 101562273 B1 KR101562273 B1 KR 101562273B1 KR 1020080072868 A KR1020080072868 A KR 1020080072868A KR 20080072868 A KR20080072868 A KR 20080072868A KR 101562273 B1 KR101562273 B1 KR 101562273B1
- Authority
- KR
- South Korea
- Prior art keywords
- color
- polyester film
- amount
- component
- germanium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229920006267 polyester film Polymers 0.000 title claims abstract description 24
- 230000003287 optical effect Effects 0.000 title claims abstract description 19
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000003054 catalyst Substances 0.000 claims abstract description 29
- 229920001225 polyester resin Polymers 0.000 claims abstract description 19
- 239000004645 polyester resin Substances 0.000 claims abstract description 19
- 239000002253 acid Substances 0.000 claims abstract description 17
- 239000008188 pellet Substances 0.000 claims abstract description 17
- YBMRDBCBODYGJE-UHFFFAOYSA-N germanium oxide Inorganic materials O=[Ge]=O YBMRDBCBODYGJE-UHFFFAOYSA-N 0.000 claims abstract description 8
- PVADDRMAFCOOPC-UHFFFAOYSA-N oxogermanium Chemical group [Ge]=O PVADDRMAFCOOPC-UHFFFAOYSA-N 0.000 claims abstract description 8
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 33
- 229960004063 propylene glycol Drugs 0.000 claims description 10
- 235000013772 propylene glycol Nutrition 0.000 claims description 10
- 150000002009 diols Chemical class 0.000 claims description 7
- SRPWOOOHEPICQU-UHFFFAOYSA-N trimellitic anhydride Chemical compound OC(=O)C1=CC=C2C(=O)OC(=O)C2=C1 SRPWOOOHEPICQU-UHFFFAOYSA-N 0.000 claims description 3
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 claims description 2
- 238000007334 copolymerization reaction Methods 0.000 claims description 2
- 150000005846 sugar alcohols Polymers 0.000 claims description 2
- 239000004146 Propane-1,2-diol Substances 0.000 claims 1
- QXJQHYBHAIHNGG-UHFFFAOYSA-N trimethylolethane Chemical compound OCC(C)(CO)CO QXJQHYBHAIHNGG-UHFFFAOYSA-N 0.000 claims 1
- 229920000139 polyethylene terephthalate Polymers 0.000 abstract description 31
- 239000005020 polyethylene terephthalate Substances 0.000 abstract description 31
- -1 polyethylene terephthalate Polymers 0.000 abstract description 24
- 229910052732 germanium Inorganic materials 0.000 abstract description 12
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 abstract description 12
- 229920005989 resin Polymers 0.000 abstract description 9
- 239000011347 resin Substances 0.000 abstract description 9
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 20
- 239000010408 film Substances 0.000 description 18
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 12
- 238000006068 polycondensation reaction Methods 0.000 description 11
- 238000009792 diffusion process Methods 0.000 description 10
- 238000005886 esterification reaction Methods 0.000 description 7
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 6
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000012788 optical film Substances 0.000 description 4
- 230000000704 physical effect Effects 0.000 description 4
- 238000006116 polymerization reaction Methods 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 229910052787 antimony Inorganic materials 0.000 description 3
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 3
- 125000004432 carbon atom Chemical group C* 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- RTBFRGCFXZNCOE-UHFFFAOYSA-N 1-methylsulfonylpiperidin-4-one Chemical compound CS(=O)(=O)N1CCC(=O)CC1 RTBFRGCFXZNCOE-UHFFFAOYSA-N 0.000 description 2
- NGNBDVOYPDDBFK-UHFFFAOYSA-N 2-[2,4-di(pentan-2-yl)phenoxy]acetyl chloride Chemical compound CCCC(C)C1=CC=C(OCC(Cl)=O)C(C(C)CCC)=C1 NGNBDVOYPDDBFK-UHFFFAOYSA-N 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 description 2
- 229910000410 antimony oxide Inorganic materials 0.000 description 2
- QPKOBORKPHRBPS-UHFFFAOYSA-N bis(2-hydroxyethyl) terephthalate Chemical compound OCCOC(=O)C1=CC=C(C(=O)OCCO)C=C1 QPKOBORKPHRBPS-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 2
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical class [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- WLJVNTCWHIRURA-UHFFFAOYSA-N pimelic acid Chemical compound OC(=O)CCCCCC(O)=O WLJVNTCWHIRURA-UHFFFAOYSA-N 0.000 description 2
- TYFQFVWCELRYAO-UHFFFAOYSA-N suberic acid Chemical compound OC(=O)CCCCCCC(O)=O TYFQFVWCELRYAO-UHFFFAOYSA-N 0.000 description 2
- JMXKSZRRTHPKDL-UHFFFAOYSA-N titanium ethoxide Chemical compound [Ti+4].CC[O-].CC[O-].CC[O-].CC[O-] JMXKSZRRTHPKDL-UHFFFAOYSA-N 0.000 description 2
- DFPSKSUPYBRMPF-UHFFFAOYSA-N 2-(hydroxymethyl)-2-methylpropane-1,3-diol Chemical compound OCC(C)(CO)CO.OCC(C)(CO)CO DFPSKSUPYBRMPF-UHFFFAOYSA-N 0.000 description 1
- YQPCHPBGAALCRT-UHFFFAOYSA-N 2-[1-(carboxymethyl)cyclohexyl]acetic acid Chemical compound OC(=O)CC1(CC(O)=O)CCCCC1 YQPCHPBGAALCRT-UHFFFAOYSA-N 0.000 description 1
- QJGNSTCICFBACB-UHFFFAOYSA-N 2-octylpropanedioic acid Chemical compound CCCCCCCCC(C(O)=O)C(O)=O QJGNSTCICFBACB-UHFFFAOYSA-N 0.000 description 1
- WMRCTEPOPAZMMN-UHFFFAOYSA-N 2-undecylpropanedioic acid Chemical compound CCCCCCCCCCCC(C(O)=O)C(O)=O WMRCTEPOPAZMMN-UHFFFAOYSA-N 0.000 description 1
- AUROKCOKBVVSHE-UHFFFAOYSA-N 4-(2-hydroxyethoxycarbonyl)benzoic acid terephthalic acid Chemical compound C(C1=CC=C(C(=O)O)C=C1)(=O)OCCO.C(C1=CC=C(C(=O)O)C=C1)(=O)O AUROKCOKBVVSHE-UHFFFAOYSA-N 0.000 description 1
- SBBQDUFLZGOASY-OWOJBTEDSA-N 4-[(e)-2-(4-carboxyphenyl)ethenyl]benzoic acid Chemical compound C1=CC(C(=O)O)=CC=C1\C=C\C1=CC=C(C(O)=O)C=C1 SBBQDUFLZGOASY-OWOJBTEDSA-N 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- ORLQHILJRHBSAY-UHFFFAOYSA-N [1-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1(CO)CCCCC1 ORLQHILJRHBSAY-UHFFFAOYSA-N 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 125000005907 alkyl ester group Chemical group 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- NBBUYPNTAABDEY-UHFFFAOYSA-N cyclobutane-1,1-diol Chemical compound OC1(O)CCC1 NBBUYPNTAABDEY-UHFFFAOYSA-N 0.000 description 1
- QYQADNCHXSEGJT-UHFFFAOYSA-N cyclohexane-1,1-dicarboxylate;hydron Chemical compound OC(=O)C1(C(O)=O)CCCCC1 QYQADNCHXSEGJT-UHFFFAOYSA-N 0.000 description 1
- JVLRYPRBKSMEBF-UHFFFAOYSA-K diacetyloxystibanyl acetate Chemical compound [Sb+3].CC([O-])=O.CC([O-])=O.CC([O-])=O JVLRYPRBKSMEBF-UHFFFAOYSA-K 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 150000002148 esters Chemical group 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- ACCCMOQWYVYDOT-UHFFFAOYSA-N hexane-1,1-diol Chemical compound CCCCCC(O)O ACCCMOQWYVYDOT-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000010102 injection blow moulding Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- KYTZHLUVELPASH-UHFFFAOYSA-N naphthalene-1,2-dicarboxylic acid Chemical compound C1=CC=CC2=C(C(O)=O)C(C(=O)O)=CC=C21 KYTZHLUVELPASH-UHFFFAOYSA-N 0.000 description 1
- UWJJYHHHVWZFEP-UHFFFAOYSA-N pentane-1,1-diol Chemical compound CCCCC(O)O UWJJYHHHVWZFEP-UHFFFAOYSA-N 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- HKJYVRJHDIPMQB-UHFFFAOYSA-N propan-1-olate;titanium(4+) Chemical compound CCCO[Ti](OCCC)(OCCC)OCCC HKJYVRJHDIPMQB-UHFFFAOYSA-N 0.000 description 1
- ULWHHBHJGPPBCO-UHFFFAOYSA-N propane-1,1-diol Chemical compound CCC(O)O ULWHHBHJGPPBCO-UHFFFAOYSA-N 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- 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
- C08G63/78—Preparation processes
- C08G63/82—Preparation processes characterised by the catalyst used
- C08G63/85—Germanium, tin, lead, arsenic, antimony, bismuth, titanium, zirconium, hafnium, vanadium, niobium, tantalum, or compounds thereof
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
LCD 부품 등, 광학용 부품으로 유용한 폴리에스테르 필름이 개시된다. 상기 폴리에스테르 필름은, 게르마늄계 촉매를 사용하며, 프로필렌글리콜을 전체 산 성분 대비 0.1 내지 10 몰%를 함유하는 폴리에틸렌테레프탈레이트로 이루어진 것을 특징으로 한다. 여기서, 상기 게르마늄계 촉매는 게르마늄옥사이드이며, 상기 게르마늄계 촉매의 사용량은 폴리에스테르 필름을 구성하는 폴리에틸렌테레프탈레이트 수지에 대하여, 10 내지 10,000 ppm인 것이 바람직하다. 또한, 상기 폴리에틸렌테레프탈레이트 수지 펠렛을, 160℃에서, 1시간 동안 결정화한 후, 칼라를 측정하면, 칼라-L 값이 89 이상인 것이 바람직하다.A polyester film useful as an optical component such as an LCD component is disclosed. The polyester film is characterized in that a germanium-based catalyst is used and is composed of polyethylene terephthalate containing propylene glycol in an amount of 0.1 to 10 mol% based on the total acid components. Here, the germanium-based catalyst is germanium oxide, and the germanium-based catalyst is preferably used in an amount of 10 to 10,000 ppm based on the polyethylene terephthalate resin constituting the polyester film. When the polyethylene terephthalate resin pellets are crystallized at 160 DEG C for 1 hour and then measured for color, the color-L value is preferably 89 or more.
폴리에스테르 수지, 촉매, 게르마늄, 칼라, 광학용 부품 Polyester resin, catalyst, germanium, color, optical parts
Description
본 발명은 광학용 폴리에스테르 필름에 관한 것으로서, 더욱 상세하게는, LCD 부품 등, 광학용 부품으로 유용한 폴리에스테르 필름에 관한 것이다.The present invention relates to an optical polyester film, and more particularly, to a polyester film useful as an optical component such as an LCD component.
폴리에틸렌테레프탈레이트(이하, "PET")는, 테레프탈산(terephthalic acid)으로 대표되는 이가산(diacid) 성분과 에틸렌글리콜(ethylene glycol)로 대표되는 디올(diol) 성분이 중합된 폴리에스테르 수지로서, 테레프탈산과 에틸렌글리콜의 에스테르화 반응에 의한 비스(히드록시에틸)테레프탈레이트(BHET, bis(hydroxylethyl)terephthalate)의 합성 단계(1단계)와, 합성된 비스(히드록시 에틸)테레프탈레이트를 중축합하는 단계(2단계)에 의하여 제조된다. 여기서, 상기 에스테르화 반응은, 테레프탈산의 자촉매 작용에 의해 반응이 진행되므로, 별다른 촉매가 필요하지 않으나, 상기 중축합 반응은 촉매의 존재 하에서 수행되어야 한다. 상기 중축합 반응의 촉매로서, 공업적으로는 가장 널리 사용되는 것은, 안티모 니 트리옥사이드(antimony trioxide, Sb2O3), 안티모니 트리아세테이트 (antimony triacetate, Sb(CH3COO)3) 등의 안티몬계 금속 촉매이다. 또한, 상기 안티몬계 금속 촉매 이외에도, 티타늄(titanium), 게르마늄(germanium), 알루미늄(aluminum), 주석(tin) 등의 금속 산화물 촉매가 상기 중축합 반응의 촉매로 사용되기도 하며, 사용되는 금속 촉매의 종류에 따라, 폴리에스테르 수지의 물성 및 반응 특성이 현저히 달라지는 것으로 알려져 있다.Polyethylene terephthalate (hereinafter referred to as "PET") is a polyester resin obtained by polymerizing a diacid component typified by terephthalic acid and a diol component typified by ethylene glycol. Terephthalic acid (Hydroxyethyl) terephthalate (BHET) by the esterification reaction of ethylene glycol and ethylene glycol (step 1) and polycondensation of the synthesized bis (hydroxyethyl) terephthalate 2). Here, since the esterification reaction proceeds by the self-catalytic action of terephthalic acid, no catalyst is needed, but the polycondensation reaction must be carried out in the presence of a catalyst. As the catalyst for the polycondensation reaction, industrially most widely used are antimony trioxide (Sb 2 O 3 ), antimony triacetate (Sb (CH 3 COO) 3 ), etc. Of an antimony-based metal catalyst. In addition to the antimony-based metal catalyst, metal oxide catalysts such as titanium, germanium, aluminum, and tin may be used as a catalyst for the polycondensation reaction. It is known that the physical properties and reaction characteristics of the polyester resin vary significantly depending on the type.
본 발명의 목적은, 광투과율, 광휘도 등의 광학적 특성이 우수하여, LCD 부품 등, 광학용 부품으로 유용한, 광학 필름용 폴리에스테르 수지를 제공하는 것이다. 본 발명의 다른 목적은, 칼라-L(color-L)값이 높은 광학용 폴리에스테르 필름을 제공하는 것이다.An object of the present invention is to provide a polyester resin for an optical film which is excellent in optical properties such as light transmittance and brightness and is useful as an optical component such as an LCD component. Another object of the present invention is to provide an optical polyester film having a high color-L value.
상기 목적을 달성하기 위하여, 본 발명은, 게르마늄계 촉매를 사용하며, 프로필렌글리콜을 전체 산 성분에 대해 0.1 내지 10 몰%를 함유하는 폴리에틸렌테레프탈레이트로 이루어진 것을 특징으로 하는, 광학 필름용 폴리에스테르 수지 및 광학용 폴리에스테르 필름을 제공한다. 여기서, 상기 게르마늄계 촉매는 게르마늄옥 사이드이고, 상기 게르마늄계 촉매의 사용량은 폴리에스테르 필름을 구성하는 폴리에틸렌테레프탈레이트 수지에 대하여, 10 내지 10,000 ppm인 것이 바람직하다. 또한, 상기 폴리에틸렌테레프탈레이트 수지 펠렛을, 160℃에서, 1시간 동안 결정화한 후, 칼라를 측정하면, 칼라-L 값이 89 이상인 것이 바람직하다.In order to achieve the above object, the present invention provides a polyester resin for an optical film, which comprises a germanium-based catalyst and is composed of polyethylene terephthalate containing propylene glycol in an amount of 0.1 to 10 mol% And an optical polyester film. It is preferable that the germanium-based catalyst is germanium oxide, and the germanium-based catalyst is used in an amount of 10 to 10,000 ppm with respect to the polyethylene terephthalate resin constituting the polyester film. When the polyethylene terephthalate resin pellets are crystallized at 160 DEG C for 1 hour and then measured for color, the color-L value is preferably 89 or more.
본 발명에 따른 광학용 폴리에스테르 필름은, 광투과율, 광휘도 등의 광학적 특성이 우수할 뿐만 아니라, 칼라-L(color-L)값 등 색상이 우수하여, LCD 부품 등, 광학용 부품으로 특히 유용하다.The optical polyester film according to the present invention is excellent not only in optical properties such as light transmittance and brightness but also in color such as color-L value, useful.
이하, 본 발명을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail.
본 발명에 따른 광학용 폴리에스테르 필름은, 게르마늄(Germanium)계 촉매를 사용하여 중합되며, 프로필렌글리콜을 전체 산 성분 대비 0.1 내지 10 몰%를 포함하는 폴리에틸렌테레프탈레이트 수지로 이루어진 것을 특징으로 한다. 본 발명에 따른 폴리에스테르 필름을 구성하는 폴리에틸렌테레프탈레이트 수지는, 이가산(diacid) 성분 및 디올(diol) 성분의 중축합 반응으로 제조되는 공중합체이다. 본 발명에 있어서, 상기 이가산 성분은, 적어도 80몰%의 테레프탈산(terephthalic acid) 성분, 및 필요에 따라, 최대 20몰%, 바람직하게는 10몰% 이하의 다른 이가산 성분을 포함한다. 즉, 본 발명의 폴리에스테르 수지에 사용되는 이가산 성분은 80 내지 100몰%, 바람직하게는 90 내지 99몰%의 테레프탈산과 0 내지 20몰%, 바람직하게는 1 내지 10몰%의 다른 이가산 성분을 포함한다. 여기서, 상기 테레프탈산 성분의 함량이, 전체 이가산 성분에 대하여 80몰% 미만이면 폴리에스테르 수지의 내열성이 저하될 우려가 있다. 상기 테레프탈산과 함께 사용될 수 있는 다른 이가산 성분으로는, 프탈산(phthalic acid), 이소프탈산(isophthalic acid), 나프탈렌디카르복실산 (naphthalenedicarboxylic acid), 디페닐디카르복실산, 4,4'-스틸벤디카르복실산(trans-4,4'-stilbene dicarboxylic acid) 등의 방향족 부분의 탄소수가 6 내지 14인 방향족 디카르복실산, 말로닉산(malonic acid), 석시닉산(succinic acid), 글루타릭산(glutaric acid), 아디픽산(adipic acid), 피멜릭산(pimelic acid), 수베릭산(suberic acid), 아젤라익산 (azelaic acid), 세바식산 (sebacic acid), 노난(nonane) 디카르복실산, 데칸(decane) 디카르복실산, 도테칸(dodecane) 디카르복실산, 시클로헥산디아세트산(cyclohexanediacetic acid), 시클로헥산디카르복실산 (cyclohexanedicarboxylic acid) 등의 지방족 부분의 탄소수가 2 내지 12인 지방족 디카르복실산을 예시할 수 있다. 본 명세서에 있어서, 상기 이가산 성분은 폴리에스테르의 에스테르 결합을 형성할 수 있는 것으로서, 디카르복실산 뿐만 아니라, 이들의 알킬 에스테르(예를 들면, 디메틸 또는 디에틸에스테르), 이들의 산 클로라이드(acid chloride) 화합물, 이들의 무수물(anhydride) 등을 포함한다. The optical polyester film according to the present invention is characterized in that it is made of a polyethylene terephthalate resin which is polymerized using a germanium-based catalyst and contains propylene glycol in an amount of 0.1 to 10 mol% based on the total acid components. The polyethylene terephthalate resin constituting the polyester film according to the present invention is a copolymer produced by a polycondensation reaction of a diacid component and a diol component. In the present invention, the above-mentioned divalent acid component contains at least 80 mol% of a terephthalic acid component, and optionally up to 20 mol%, preferably up to 10 mol%, of other diacid components. That is, the divalent acid component used in the polyester resin of the present invention contains 80 to 100 mol%, preferably 90 to 99 mol% of terephthalic acid and 0 to 20 mol%, preferably 1 to 10 mol% ≪ / RTI > If the content of the terephthalic acid component is less than 80 mol% with respect to the total dicarboxylic acid component, the heat resistance of the polyester resin may be lowered. Other divalent acid components that can be used with the terephthalic acid include phthalic acid, isophthalic acid, naphthalenedicarboxylic acid, diphenyldicarboxylic acid, 4,4'-stearyl Aromatic dicarboxylic acids having 6 to 14 carbon atoms in the aromatic moiety such as trans-4,4'-stilbene dicarboxylic acid, malonic acid, succinic acid, glutaric acid, The compounds of the present invention may be selected from the group consisting of glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, nonane dicarboxylic acid, An aliphatic moiety having 2 to 12 carbon atoms in the aliphatic moiety such as decane dicarboxylic acid, dodecane dicarboxylic acid, cyclohexanediacetic acid and cyclohexanedicarboxylic acid. And dicarboxylic acid. In the present specification, the above-mentioned divalent acid component is capable of forming an ester bond of polyester, and not only dicarboxylic acid but also alkyl ester thereof (e.g., dimethyl or diethyl ester), acid chloride thereof acid chloride compounds, anhydrides thereof, and the like.
본 발명에 있어서, 상기 디올 성분은, 전체 산 성분에 대하여, 적어도 80몰%, 바람직하게는 90 내지 99.9몰%의 에틸렌글리콜 성분 및 필요에 따라, 0.1 내 지 10 몰%의 프로필렌글리콜 성분, 및 최대 20몰%, 바람직하게는 10몰% 이하의 다른 디올 성분을 더욱 포함할 수 있다. 여기서, 상기 에틸렌글리콜의 함량이, 전체 산 성분에 대하여 80몰% 미만이면 필름의 열적 성질 및 연신 거동이 나빠질 우려가 있다. 상기 에틸렌글리콜 및 프로필렌글리콜과 함께 사용될 수 있는 다른 디올 성분으로는, 탄소수 3 내지 16의 지방족 디올을 예시할 수 있고, 구체적으로는 디에틸렌글리콜, 트리에틸렌글리콜, 프로판디올(propanediol), 부탄디올 (butanediol), 펜탄디올(pentanediol), 헥산디올(hexanediol), 사이클로헥산디메탄올, 시클로부탄디올 등을 예시할 수 있다. 또한, 본 발명에 따른 폴리에스테르 수지는, 폴리에스테르 수지의 물리적 특성을 향상시키기 위하여, 필요에 따라, 트리멜리틱 안하이드라이드(Trimellitic Anhydride: TMA) 등의 3가 이상의 다가산 성분 및 트리메틸올에탄 (Trimethylol ethane), 트리메틸올프로판(Trimethylol propane) 등의 3가 이상의 다가 알코올을 더욱 포함할 수 있다. 상기 3가 이상의 다가산 성분이 사용될 경우, 그 사용량은 이가산 성분에 대하여, 0 내지 10중량%, 바람직하게는 0.01 내지 3중량%이고, 상기 3가 이상의 다가 알코올 성분이 사용될 경우, 그 사용량은 디올 성분에 대하여, 0 내지 10중량%, 바람직하게는 0.01 내지 3중량%이다. In the present invention, the diol component contains at least 80 mol%, preferably 90 to 99.9 mol%, of the ethylene glycol component and optionally 0.1 to 10 mol% of the propylene glycol component, based on the total acid component, and Up to 20 mol%, preferably up to 10 mol%, of other diol components. If the content of ethylene glycol is less than 80 mol% based on the total amount of the acid component, the thermal property and stretching behavior of the film may be deteriorated. Examples of other diol components that can be used in combination with ethylene glycol and propylene glycol include aliphatic diols having 3 to 16 carbon atoms and specifically include diethylene glycol, triethylene glycol, propanediol, butanediol, ), Pentanediol, hexanediol, cyclohexanedimethanol, cyclobutanediol, and the like. In order to improve the physical properties of the polyester resin, the polyester resin according to the present invention may further contain a trihydric or higher polyhydric acid component such as trimellitic anhydride (TMA) and trimethylol ethane (Trimethylol ethane), trimethylol propane, and the like. When the trivalent or more polyvalent alcohol component is used, the amount of the polyhydric alcohol component to be used is 0 to 10% by weight, preferably 0.01 to 3% by weight based on the bivalent acid component. When the trivalent or more polyvalent alcohol component is used, Is 0 to 10% by weight, preferably 0.01 to 3% by weight, based on the diol component.
본 발명에 따른 폴리에스테르 필름에 포함되는 게르마늄(Germanium)계 촉매로는 게르마늄옥사이드(Germanium oxide)를 대표적으로 사용할 수 있고, 상기 게르마늄계 촉매의 사용량은 폴리에스테르 필름을 구성하는 폴리에틸렌테레프탈레이트 수지에 대하여, 10 내지 10,000 ppm, 바람직하게는 10 내지 1,000 ppm이다. 여기 서, 상기 촉매의 사용량이 너무 적은 경우에는 폴리에스테르 수지의 중축합 반응이 효과적으로 수행되지 않거나, 폴리에스테르 수지의 색상이 나빠지고, 너무 많은 경우에는, 추가적인 촉매 효과를 얻지 못하면서, 경제적으로 불리하거나, 폴리에스테르 수지의 불순물로서 작용할 뿐이다. 또한, 필요에 따라, 본 발명의 목적을 달성하는 한도 내에서, 상기 게르마늄계 촉매와 함께, 테트라에틸 티타네이트, 아세틸트리프로필 티타네이트, 테트라프로필 티타네이트 등의 티타늄계 촉매, 안티모니 옥사이드(antimony oxide) 등의 안티몬계 촉매 등이 소량 사용될 수 있으나, 이들 티타늄계 또는 안티몬계 촉매는 폴리에스테르 수지의 광학적 특성 및 색상 특성을 저하시키므로, 가급적 사용하지 않는 것이 좋다. As the germanium-based catalyst included in the polyester film according to the present invention, germanium oxide (germanium oxide) can be typ- ically used, and the amount of the germanium-based catalyst to be used is not limited to the polyethylene terephthalate resin constituting the polyester film , 10 to 10,000 ppm, preferably 10 to 1,000 ppm. Here, when the amount of the catalyst is too small, the polycondensation reaction of the polyester resin is not effectively carried out, or the color of the polyester resin is deteriorated. When the amount of the catalyst is too large, an additional catalytic effect is not obtained, , And only acts as an impurity of the polyester resin . In addition, if necessary, as long as the object of the present invention is achieved, titanium-based catalysts such as tetraethyl titanate, acetyltripropyl titanate and tetrapropyl titanate, antimony oxides such as antimony oxide, oxide and the like can be used in a small amount. However, these titanium or antimony catalysts deteriorate the optical properties and color characteristics of the polyester resin.
본 발명의 또 다른 특징은, 프로필렌글리콜 성분의 사용에 의해, 폴리머의 색상, 색상 안정성 및 열적 안정성이 크게 개선된다는 것이다. 본 발명에 있어서, 앞서 기술된 게르마늄(Germanium) 촉매의 색상 증진 효과와 함께, 광학필름용 폴리에스테르로서 바람직한 물성을 얻는 데에, 프로필렌글리콜(propane-1,2-diol)에 의한 공중합 반응이 매우 효과적임이 발견되었다. 공중합되는 프로필렌글리콜의 양은 폴리에스테르를 구성하는 전체 산 성분에 대하여 0.1 내지 10 몰%가 바람직하며, 공중합되는 프로필렌글리콜의 양이 전체 산 성분에 대하여 0.1 몰% 미만이면 프로필렌글리콜에 의한 색상 개선 효과가 미미한 반면, 10몰%를 초과하면 중합반응 속도가 현저히 낮아지는 문제점이 있다.Another feature of the present invention is that the use of propylene glycol components significantly improves the hue, color stability, and thermal stability of the polymer. In the present invention, the copolymerization reaction with propylene glycol (propane-1,2-diol) is very effective in obtaining the desirable physical properties as the polyester for optical films, together with the color enhancing effect of the Germanium catalyst described above It was found to be effective. The amount of propylene glycol to be copolymerized is preferably from 0.1 to 10 mol% based on the total acid component constituting the polyester, and if the amount of propylene glycol to be copolymerized is less than 0.1 mol% with respect to the total acid component, the effect of improving the color by propylene glycol On the other hand, if it exceeds 10 mol%, there is a problem that the polymerization reaction rate is remarkably lowered.
본 발명에 따른 폴리에스테르 수지는, 통상적인 폴리에스테르 수지와 같이, 에스테르화 반응 또는 에스테르 교환반응, 및 중축합 반응의 2 단계로 제조될 수 있다. 여기서, 전체 산 성분 사용량(A)에 대한 전체 알코올 성분 사용량(G)의 몰비율은 1.1 내지 1.8 인 것이 바람직하다. 상기 비율(G/A)이 1.1 미만일 경우, 중합반응 시 미반응 산 성분이 잔류하여 수지의 투명성이 저하되며, 1.8를 초과할 경우, 중합반응속도가 너무 느려서 수지의 생산성이 저하될 우려가 있다. The polyester resin according to the present invention can be produced in two steps of an esterification reaction or an ester exchange reaction, and a polycondensation reaction like a conventional polyester resin. Here, the molar ratio of the total alcohol component usage amount (G) to the total acid component usage amount (A) is preferably 1.1 to 1.8. When the ratio (G / A) is less than 1.1, the unreacted acid component remains in the polymerization reaction and the transparency of the resin is lowered. When the ratio is more than 1.8, the polymerization reaction rate is too slow to lower the productivity of the resin .
본 발명에 따른 광학용 폴리에스테르 필름 또는 시이트(sheet)는, 통상의 압출 성형, 사출 성형, 블로우(blow) 성형 등의 방법으로 제조될 수 있으며, 그 두께는 통상 0.01 내지 3.0 mm, 바람직하게는 0.1 내지 0.5 mm 이다. 여기서, 상기 필름의 두께가 너무 얇으면, 필름으로서 필요한 강도 등의 물리적 특성이 저하될 우려가 있고, 상기 필름의 두께가 너무 두꺼우면, 광투과율 등 광학적 특성이 저하될 우려가 있다.The optical polyester film or sheet according to the present invention can be produced by a conventional extrusion molding, injection molding, blow molding or the like, and its thickness is usually 0.01 to 3.0 mm, 0.1 to 0.5 mm. Here, if the thickness of the film is too small, physical properties such as strength required for the film may be deteriorated. If the thickness of the film is too large, there is a fear that the optical characteristics such as light transmittance may deteriorate.
본 발명에 따른 광학용 폴리에스테르 필름은, LCD 등과 같이, 광원과 함께 구성된 광학 및 전자 장치의 부품으로 사용될 경우, 광원의 빛이 폴리에스테르 필름을 통과할 경우, 기존의 폴리에스테르 필름에 비하여 빛의 세기의 손실이 적다. 즉, 필름의 휘도가 우수하다. 특히, 본 발명의 필름은 다른 종류의 금속 촉매를 사용하여 제조한 폴리에스테르 필름보다, 칼라-L(color-L)값이 우수한 특징을 가진다. 즉, 본 발명의 필름 제조에 사용되는 폴리에스테르 수지 펠렛(pellet)을, 160 ℃에서, 1시간 동안 결정화한 후, 칼라를 측정하면, 칼라-L 값이 89 이상, 바람직하게는 90 이상이고, 상기 펠렛을 160℃에서, 1시간 동안 결정화하고, 다시 200℃의 온도에서 4시간 이상 고상 중합을 수행한 후, 칼라를 측정하면, 칼라-L 값이 93 이상인 특징을 가진다. 따라서, 본 발명에 따른 폴리에스테르 필름은, 높은 광휘도 등 광학적 특성을 필요로 하는 광학용 필름으로 유용하며, 구체적으로는 LCD(액정표시장치)의 확산 필름, 편광 필름 등으로 유용하다.The optical polyester film according to the present invention, when used as a component of optical and electronic devices together with a light source, such as an LCD or the like, allows light of a light source to pass through the polyester film, There is little loss of strength. That is, the brightness of the film is excellent. In particular, the film of the present invention has a color-L value superior to that of a polyester film produced by using other types of metal catalysts. That is, when a polyester resin pellet used in the production of the film of the present invention is crystallized at 160 DEG C for 1 hour and then measured for color, the color-L value is 89 or more, preferably 90 or more, The pellet is crystallized at 160 DEG C for 1 hour and further subjected to solid phase polymerization at a temperature of 200 DEG C for 4 hours or more and then measured for color and has a color-L value of 93 or more. Therefore, the polyester film according to the present invention is useful as an optical film requiring optical properties such as high brightness, and specifically, it is useful as a diffusion film or a polarizing film of an LCD (liquid crystal display).
이하, 실시예 및 비교예를 통하여 본 발명을 더욱 상세히 설명한다. 하기 실시예는 본 발명을 보다 구체적으로 설명하기 위한 것으로서, 본 발명의 범위가 이들 실시예에 의해 한정되는 것은 아니다.Hereinafter, the present invention will be described in more detail with reference to examples and comparative examples. The following examples are intended to further illustrate the present invention, and the scope of the present invention is not limited by these examples.
[실시예 1] 폴리에스테르 필름 제조 [Example 1] Production of polyester film
테레프탈산 85 Kg 및 에틸렌글리콜 35 Kg을 주재료로 사용하고, 250℃에서 5시간 동안 에스테르화 반응을 진행한 다음, 게르마늄 옥사이드 10g을 주촉매로 사용하고, 275℃에서 3시간 동안 중축합 반응을 진행하여, 고유점도 0.65 dl/g의 폴리에틸렌테레프탈레이트 100 Kg을 제조하였다. 제조된 폴리에틸렌테레프탈레이트 펠렛을 160℃에서 1시간 동안 결정화하고, 펠렛의 색상을 측정한 결과, Color-L 92, Color-a 0.5, color-b 0.5 이었다. 또한, 상기 폴리에틸렌테레프탈레이트 펠렛에 무기계 확산제로서 hombitec RM130 (독일 Sachtleben Chemie GmbH사 제품)을 0.1 중량%로 혼합한 후, 시이트 압출기(Breyer사 제품)를 사용하여, 250℃에서 두 께 1 mm의 PET 확산 필름을 제작하였다. 이렇게 제작된 PET 확산 필름에 대하여, 휘도를 측정(LED 면광원 조명판 위에 확산 필름을 놓고, 확산 필름을 통과하는 빛의 밝기를 휘도계(미놀타 model number; MS10)로 측정)한 결과, 55 cd/m2 였다.85 Kg of terephthalic acid and 35 Kg of ethylene glycol were used as main materials and the esterification reaction was carried out at 250 ° C. for 5 hours. Then, 10 g of germanium oxide was used as a main catalyst and polycondensation reaction was carried out at 275 ° C. for 3 hours , And 100 Kg of polyethylene terephthalate having an intrinsic viscosity of 0.65 dl / g. The prepared polyethylene terephthalate pellets were crystallized at 160 DEG C for 1 hour, and the color of the pellets was measured. As a result, Color-L 92, Color-a 0.5 and color-b 0.5 were obtained. The polyethylene terephthalate pellets were mixed with 0.1 wt% of hombitec RM130 (manufactured by Sachtleben Chemie GmbH, Germany) as an inorganic diffusing agent, and then extruded at 250 ° C using a sheet extruder (Breyer) PET diffusion film was prepared. The luminance of the PET diffusion film thus fabricated was measured (brightness of light passing through the diffusion film was measured by a luminance meter (Minolta model number MS10) on a LED light source illuminating plate) / m < 2 & gt ;.
[실시예 2] 폴리에스테르 필름 제조 [Example 2] Production of polyester film
테레프탈산 85 Kg, 에틸렌글리콜 35 Kg 및 프로필렌글리콜 1Kg을 주재료로 사용하고, 250℃에서 5시간 동안 에스테르화 반응을 진행한 다음, 게르마늄 옥사이드 5g을 주촉매로 사용하고, 275℃에서 3시간 동안 중축합 반응을 진행하여, 고유점도 0.57 dl/g의 폴리에틸렌테레프탈레이트 100 Kg을 제조하였다. 제조된 폴리에틸렌테레프탈레이트 펠렛을 160℃에서 1시간 동안 결정화하고, 펠렛의 색상을 측정한 결과, Color-L 92, Color-a 0.7, color-b -0.5 이었다. 또한, 상기 폴리에틸렌테레프탈레이트 펠렛에 무기계 확산제로서 hombitec RM130 (독일 Sachtleben Chemie GmbH사 제품)을 0.1 중량%로 혼합한 후, 시이트 압출기(Breyer사 제품)를 사용하여, 250℃에서 두께 1 mm의 PET 확산 필름을 제작하였다. 이렇게 제작된 PET 확산 필름에 대하여, 실시예 1과 동일한 방법으로, 빛에 대한 휘도를 측정한 결과, 58 cd/m2 였다.85 Kg of terephthalic acid, 35 Kg of ethylene glycol and 1 Kg of propylene glycol were used as the main ingredients and the esterification reaction was carried out at 250 ° C. for 5 hours. Then, 5 g of germanium oxide was used as a main catalyst and polycondensation was carried out at 275 ° C. for 3 hours The reaction proceeded to prepare 100 Kg of polyethylene terephthalate having an intrinsic viscosity of 0.57 dl / g. The prepared polyethylene terephthalate pellets were crystallized at 160 DEG C for 1 hour and the color of the pellets was measured to be Color-L 92, Color-a 0.7 and color-b -0.5. The polyethylene terephthalate pellets were mixed with 0.1 wt% of hombitec RM130 (manufactured by Sachtleben Chemie GmbH, Germany) as an inorganic diffusing agent, and then the PET extruder (Breyer) A diffusion film was produced. The thus prepared PET diffusion film was measured for luminance by light in the same manner as in Example 1 and found to be 58 cd / m 2 .
삭제delete
삭제delete
[비교예 1] 폴리에스테르 필름 제조 [Comparative Example 1] Production of polyester film
테레프탈산 85 Kg 및 에틸렌글리콜 35 Kg을 주재료로 사용하고, 250℃에서 5시간 동안 에스테르화 반응을 진행한 다음, 안티모니 트리옥사이드(antimony trioxide) 30g을 주촉매로 사용하고, 275℃에서 3시간 동안 중축합 반응을 진행하여, 고유점도 0.64 dl/g의 폴리에틸렌테레프탈레이트 100 Kg을 제조하였다. 제조된 폴리에틸렌테레프탈레이트 펠렛을 160℃에서 1시간 동안 결정화하고, 펠렛의 색상을 측정한 결과, Color-L 88, Color-a 0.2, Color-b 0.5 이었다. 또한, 상기 폴리에틸렌테레프탈레이트 펠렛을 이용하여, 실시예 1과 동일한 방법으로, PET 확산 필 름을 제작하였다. 이렇게 제작된 PET 확산 필름에 대하여, 실시예 1과 동일한 방법으로, 빛에 대한 휘도를 측정한 결과, 50 cd/m2 였다.85 Kg of terephthalic acid and 35 Kg of ethylene glycol were used as the main materials and the esterification reaction was carried out at 250 ° C. for 5 hours. Then, 30 g of antimony trioxide was used as the main catalyst and the reaction was carried out at 275 ° C. for 3 hours The polycondensation reaction proceeded to prepare 100 Kg of polyethylene terephthalate having an intrinsic viscosity of 0.64 dl / g. The prepared polyethylene terephthalate pellets were crystallized at 160 캜 for 1 hour, and the color of the pellets was measured. As a result, Color-L 88, Color-a 0.2 and Color-b 0.5 were obtained. A PET diffusion film was prepared in the same manner as in Example 1 using the polyethylene terephthalate pellets. The thus prepared PET diffusion film was measured for luminance by light in the same manner as in Example 1, and found to be 50 cd / m 2 .
[비교예 2] 폴리에스테르 필름 제조 [Comparative Example 2] Production of polyester film
테레프탈산 85 Kg 및 에틸렌글리콜 35 Kg을 주재료로 사용하고, 250℃에서 5시간 동안 에스테르화 반응을 진행한 다음, 안티모니 트리옥사이드(antimony trioxide) 20g을 주촉매로 사용하고, 275 ℃에서 3 시간 동안 중축합 반응을 진행하여, 고유점도 0.57 dl/g의 폴리에틸렌테레프탈레이트 100 Kg을 제조하였다. 제조된 폴리에틸렌테레프탈레이트 펠렛을 160℃에서 1 시간 동안 결정화하고, 펠렛의 색상을 측정한 결과, Color-L 89, Color-a 0, Color-b 0 이었다. 또한, 상기 폴리에틸렌테레프탈레이트 펠렛을 이용하여, 실시예 1 과 동일한 방법으로, PET 확산 필름을 제작하였다. 이렇게 제작된 PET 확산 필름에 대하여, 실시예 1과 동일한 방법으로, 빛에 대한 휘도를 측정한 결과, 49 cd/m2 였다.85 Kg of terephthalic acid and 35 Kg of ethylene glycol were used as the main materials and the esterification reaction was carried out at 250 DEG C for 5 hours. Next, 20 g of antimony trioxide was used as the main catalyst, and the mixture was stirred at 275 DEG C for 3 hours The polycondensation reaction proceeded to prepare 100 Kg of polyethylene terephthalate having an intrinsic viscosity of 0.57 dl / g. The prepared polyethylene terephthalate pellets were crystallized at 160 DEG C for 1 hour and the color of the pellets was measured to be Color-L 89, Color-a 0 and Color-b 0. Further, a polyethylene terephthalate pellet was used and a PET diffusion film was produced in the same manner as in Example 1. The thus prepared PET diffusion film was measured for luminance by light in the same manner as in Example 1 and found to be 49 cd / m 2 .
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020080072868A KR101562273B1 (en) | 2008-07-25 | 2008-07-25 | Optical polyester film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020080072868A KR101562273B1 (en) | 2008-07-25 | 2008-07-25 | Optical polyester film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20100011590A KR20100011590A (en) | 2010-02-03 |
| KR101562273B1 true KR101562273B1 (en) | 2015-10-22 |
Family
ID=42086046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020080072868A Active KR101562273B1 (en) | 2008-07-25 | 2008-07-25 | Optical polyester film |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR101562273B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101399425B1 (en) * | 2013-12-16 | 2014-05-27 | 에스케이씨 주식회사 | Multi-layer oriented film |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6063464A (en) | 1998-04-23 | 2000-05-16 | Hna Holdings, Inc. | Isosorbide containing polyesters and methods for making same |
-
2008
- 2008-07-25 KR KR1020080072868A patent/KR101562273B1/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6063464A (en) | 1998-04-23 | 2000-05-16 | Hna Holdings, Inc. | Isosorbide containing polyesters and methods for making same |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20100011590A (en) | 2010-02-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5989676B2 (en) | Polyester resin composition and method for producing the same | |
| JP2003501532A (en) | Amorphous copolyester with high glass transition temperature and low melt viscosity | |
| JP2006511688A (en) | Ester-modified dicarboxylate polymer | |
| JP5689599B2 (en) | Method for producing a polyester containing 1,4-cyclohexanedimethanol | |
| US6180749B1 (en) | Glass clear heavy gauge sheet with copolyester | |
| JPS6312629A (en) | Full-aromatic liquid crystal polyester | |
| KR101430264B1 (en) | High-transparency 1,4-cyclohexane dimethanol copolymerized polyester resin having excellent color and method for producing the same | |
| TW201425457A (en) | Method of poly(1,4-cyclohexylenedimethylene terephthalate) having enhanced colors, and poly(1,4-cyclohexylenedimethylene terephthalate) manufactured by the same | |
| US10072118B2 (en) | Polycyclohexylenedimethylene terephthalate resin having enhanced crystallization speed and method for preparing same | |
| KR101562273B1 (en) | Optical polyester film | |
| KR20180003963A (en) | Polymethylpropylene terephthalate and preparation method thereof | |
| JP2928422B2 (en) | Heat resistant polyester resin and resin composition | |
| JP5283102B2 (en) | Polyester sheet | |
| JP4907779B2 (en) | Extruded product | |
| KR101496633B1 (en) | Polyester resin excellent in chemical resistance and shrink resistance | |
| KR101546316B1 (en) | Molded article of multi-layered polyester resin | |
| KR101892534B1 (en) | PET-PEN COPOLYMER COMPOSITION COMPRISING FBPE and METHOD OF PREPARING THE SAME | |
| KR101127951B1 (en) | Biaxially-oriented polyester film and preparation method thereof | |
| JP2657083B2 (en) | Aromatic copolyester | |
| JP2547820B2 (en) | Aromatic copolyester | |
| JPH09157367A (en) | Polyester polymer for liquid crystal display film or sheet | |
| JPS63210127A (en) | Aromatic copolyester | |
| JPH02133424A (en) | Aromatic copolyester | |
| JP2009167343A (en) | Method for producing polyester | |
| JP2002128879A (en) | Polyester and its molded body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PA0109 | Patent application |
Patent event code: PA01091R01D Comment text: Patent Application Patent event date: 20080725 |
|
| PG1501 | Laying open of application | ||
| A201 | Request for examination | ||
| PA0201 | Request for examination |
Patent event code: PA02012R01D Patent event date: 20130508 Comment text: Request for Examination of Application Patent event code: PA02011R01I Patent event date: 20080725 Comment text: Patent Application |
|
| E902 | Notification of reason for refusal | ||
| PE0902 | Notice of grounds for rejection |
Comment text: Notification of reason for refusal Patent event date: 20140726 Patent event code: PE09021S01D |
|
| E90F | Notification of reason for final refusal | ||
| PE0902 | Notice of grounds for rejection |
Comment text: Final Notice of Reason for Refusal Patent event date: 20150331 Patent event code: PE09021S02D |
|
| E701 | Decision to grant or registration of patent right | ||
| PE0701 | Decision of registration |
Patent event code: PE07011S01D Comment text: Decision to Grant Registration Patent event date: 20150930 |
|
| PR0701 | Registration of establishment |
Comment text: Registration of Establishment Patent event date: 20151015 Patent event code: PR07011E01D |
|
| PR1002 | Payment of registration fee |
Payment date: 20151015 End annual number: 3 Start annual number: 1 |
|
| PG1601 | Publication of registration | ||
| FPAY | Annual fee payment |
Payment date: 20180927 Year of fee payment: 4 |
|
| PR1001 | Payment of annual fee |
Payment date: 20180927 Start annual number: 4 End annual number: 4 |
|
| FPAY | Annual fee payment |
Payment date: 20190925 Year of fee payment: 5 |
|
| PR1001 | Payment of annual fee |
Payment date: 20190925 Start annual number: 5 End annual number: 5 |
|
| PR1001 | Payment of annual fee |
Payment date: 20200922 Start annual number: 6 End annual number: 6 |
|
| PR1001 | Payment of annual fee |
Payment date: 20210923 Start annual number: 7 End annual number: 7 |
|
| PR1001 | Payment of annual fee |
Payment date: 20220920 Start annual number: 8 End annual number: 8 |
|
| PR1001 | Payment of annual fee |
Payment date: 20230920 Start annual number: 9 End annual number: 9 |