KR830002831A - 고분자량 폴리에스테르 제조방법 - Google Patents

고분자량 폴리에스테르 제조방법 Download PDF

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Publication number
KR830002831A
KR830002831A KR1019800002246A KR800002246A KR830002831A KR 830002831 A KR830002831 A KR 830002831A KR 1019800002246 A KR1019800002246 A KR 1019800002246A KR 800002246 A KR800002246 A KR 800002246A KR 830002831 A KR830002831 A KR 830002831A
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South Korea
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carbon atoms
dicarboxylic acid
group
molecular weight
high molecular
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KR1019800002246A
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KR840000282B1 (ko
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두흐 벤
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칼 에취·크루코우
더 굳이어 타이어 앤드 러버 캄파니
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/78Preparation processes
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/78Preparation processes
    • C08G63/80Solid-state polycondensation
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/12Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/16Dicarboxylic acids and dihydroxy compounds

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyesters Or Polycarbonates (AREA)

Abstract

내용 없음

Description

고분자량 폴리에스테르 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제 1도는 실시예에 있어서의 반응속도도이고, 제2도는 카르복실 합량과 반응시간의 비교도이다.

Claims (6)

  1. (a) 디카르복실산 및 디카르복실산 에스테르로 구성되는 군으로부터 선정한 디카르복실산 화합물과 그리콜을 반응시켜, 고유점도가 약 0.35dl/g 내지 0.62dl/g이고 또 카르복시 종말기함량이 총 종말기의 약 18%내지 약 40%인 폴리에스테르 부분중합체를 제조하고, 또
  2. (b)이 폴리에스테르 부분중합체를 고정상(固定床)에서 고체상 중합반응시켜 고유점도가 적어도 0.70dl/g이고 또 아세트알데히드 불순물 농도가 3.0ppm보다 적은 고분자량, 고순도 중축합 폴리에스테르를 제조하는 반응단계로 구성되는, 고분자량 고순도 폴리에스테르의 제조방법
  3. 단 (a)의 반응물중에서 디카르복실산은 2개 내지 16개의 총 탄소원자를 갖는 알킬디카르복실산과 8개 내지 16개의 총탄소원자를 갖는 아릴디카르복실산으로 구성되는 군에서 선정한 것이며,
  4. 디카르복실산 에스테르는 2개 내지 20개의 탄소원자를 갖는 알킬에스테르와 10개 내지 20개의 탄소원자를 갖는 알킬치환된 아릴에스테르로 구성되는 군에서 선정한 것이고
  5. 그리콜은 2개 내지 10개 탄소원자를 갖는 그리콜로 구성되는 군에서 선정한 것이다.
  6. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019800002246A 1979-06-12 1980-06-07 고분자량 폴리에스테르의 제조방법 Expired KR840000282B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US90/001508A US4238593B1 (en) 1979-06-12 1979-06-12 Method for production of a high molecular weight polyester prepared from a prepolymer polyester having an optional carboxyl content
US47,849 1979-06-12

Publications (2)

Publication Number Publication Date
KR830002831A true KR830002831A (ko) 1983-05-30
KR840000282B1 KR840000282B1 (ko) 1984-03-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019800002246A Expired KR840000282B1 (ko) 1979-06-12 1980-06-07 고분자량 폴리에스테르의 제조방법

Country Status (12)

Country Link
US (1) US4238593B1 (ko)
JP (1) JPS562321A (ko)
KR (1) KR840000282B1 (ko)
AU (1) AU532816B2 (ko)
BE (1) BE883799A (ko)
BR (1) BR8003311A (ko)
CA (1) CA1139493A (ko)
DE (1) DE3022076A1 (ko)
FR (1) FR2465759A1 (ko)
GB (1) GB2051100B (ko)
IT (1) IT1128160B (ko)
MX (1) MX156234A (ko)

Families Citing this family (99)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0032163B1 (de) * 1979-12-21 1986-01-08 Hüls Aktiengesellschaft Verfahren zum Regenerieren und Aufarbeiten von inaktivem linearen Poly(alkylenterephthalat)
US4387213A (en) * 1979-12-21 1983-06-07 Chemische Werke Huels Ag Process for the condensation of linear polyalkylene terephthalates
JPS5830703A (ja) * 1981-08-17 1983-02-23 Sumitomo Electric Ind Ltd シリコン樹脂クラツド光通信用フアイバ
US4357461A (en) * 1981-12-11 1982-11-02 Owens-Illinois, Inc. Polyester stabilization and composition
JPS59140222A (ja) * 1983-01-31 1984-08-11 Teijin Ltd カルボキシル基末端濃度の大なる芳香族ポリエステル及びその製造法
JPS59219328A (ja) * 1983-05-28 1984-12-10 Toyobo Co Ltd 高重合度ポリエステルの製造方法
JPS62174225A (ja) * 1986-01-28 1987-07-31 Kanebo Ltd 中空成形用ポリエステル及びその製造方法
US5408035A (en) * 1991-10-16 1995-04-18 Shell Oil Company Solid state polymerization
JP3024030B2 (ja) * 1992-12-07 2000-03-21 ポリプラスチックス株式会社 加水分解安定性の優れたポリブチレンテレフタレート重合体の製造方法
US5539078A (en) 1994-12-14 1996-07-23 Shell Oil Company Process for manufacturing polyester copolymers
TW354305B (en) * 1994-12-22 1999-03-11 Eastman Chem Co Production of particular polyesters using a novel catalyst system
JP3407450B2 (ja) 1995-01-11 2003-05-19 三菱化学株式会社 ダイレクトブローボトル成形用高粘度ポリエステルの製造方法
DE19503053B4 (de) * 1995-02-01 2005-08-18 Zimmer Ag Verfahren zur direkten Herstellung von Polyester-Verpackungen
DE19503054B4 (de) * 1995-02-01 2005-12-22 Zimmer Ag Verfahren zur thermischen Behandlung von Polyestergranulat in fester Phase
GB2315755B (en) * 1995-06-06 1999-12-08 Univ North Carolina Process for the preparation of polyester in carbon dioxide
US5962557A (en) * 1996-09-30 1999-10-05 Eastman Chemical Corporation Polyesters containing copolymerized substituted 1,4-bis(2,6-dialkylanilino)-9, 10-anthraquinones as colorants
KR19980061618A (ko) * 1996-12-31 1998-10-07 김준웅 고중합도 폴리트리메틸렌테레프탈레이트의 제조방법
US6288202B1 (en) 1997-04-11 2001-09-11 The University Of North Carolina At Chapel Hill Synthesis of polycarbonates using Co2
US6048957A (en) * 1997-05-01 2000-04-11 Eastman Chemical Company Process for polyesters with improved properties
DE19814529A1 (de) * 1998-04-01 1999-10-07 Basf Ag Polyalkylenarylate mit hohem Carbonylendgruppengehalt
US6376642B1 (en) 1998-07-07 2002-04-23 Atofina Chemicals, Inc. Polyester polycondensation with lithium titanyl oxalate catalyst
WO2000046004A1 (en) 1999-02-04 2000-08-10 Bühler AG Process for upgrading plastic material
US6183848B1 (en) 1999-06-03 2001-02-06 Eastman Chemical Company Low melt viscosity amorphous copolyesters with enhanced glass transition temperatures having improved gas barrier properties
US6287656B1 (en) 1999-06-03 2001-09-11 Eastman Chemical Corporation Low melt viscosity amorphous copolyesters having improved resistance to lipids
US6120889A (en) * 1999-06-03 2000-09-19 Eastman Chemical Company Low melt viscosity amorphous copolyesters with enhanced glass transition temperatures
US6384180B1 (en) 1999-08-24 2002-05-07 Eastman Chemical Company Method for making polyesters employing acidic phosphorus-containing compounds
US6258925B1 (en) 2000-01-07 2001-07-10 Atofina Chemicals, Inc. Polyester polycondensation with titanyl oxalate catalyst and a catalyst enhancer
US6372879B1 (en) 2000-01-07 2002-04-16 Atofina Chemicals, Inc. Polyester polycondensation with catalyst and a catalyst enhancer
US6472500B2 (en) * 2000-06-17 2002-10-29 General Electric Company Crystalline polyester resins and processes for their preparation
US6342578B1 (en) 2000-12-06 2002-01-29 Arteva North America S.A.R.L. Copolyester with high carboxyl end groups and a method for making
CN1900139B (zh) 2000-12-07 2012-11-14 奇派特石化有限公司 制造缩聚物的方法
US6906164B2 (en) 2000-12-07 2005-06-14 Eastman Chemical Company Polyester process using a pipe reactor
US6716898B2 (en) 2001-05-18 2004-04-06 Eastman Chemical Company Amber polyester compositions for packaging food and beverages
KR100446474B1 (ko) * 2001-05-30 2004-09-01 주식회사 삼양사 내구성이 우수한 폴리부틸렌테레프탈레이트 수지의 제조방법
DE10132928A1 (de) * 2001-07-03 2003-01-16 Buehler Ag Modifizierte nachkondensierte Polyester
US20030060596A1 (en) * 2001-07-18 2003-03-27 Turner Sam Richard Amorphous copolyesters
US7834127B2 (en) * 2001-07-18 2010-11-16 Eastman Chemical Company Amorphous copolyesters
US6713641B2 (en) * 2001-10-19 2004-03-30 Eastman Chemical Company Reactive anthraquinone colorant compounds and polymeric materials reacted therewith
US7300998B2 (en) * 2002-02-14 2007-11-27 Mitsui Chemicals, Inc. Polyester resin and catalyst for polyester production, process for producing polyester resin with the catalyst, polyester resin obtained with the catalyst, and hollow molded container comprising the polyester resins
US6787589B2 (en) * 2002-10-31 2004-09-07 Eastman Chemical Company Amber polyester compositions and container articles produced therefrom
US6914120B2 (en) * 2002-11-13 2005-07-05 Eastman Chemical Company Method for making isosorbide containing polyesters
US6896966B2 (en) * 2002-11-22 2005-05-24 Eastman Chemical Company Articles of manufacture incorporating polyester/polycarbonate blends
US7118799B2 (en) * 2002-11-22 2006-10-10 Eastman Chemical Company Thermoplastic article having a decorative material embedded therein
US7482397B2 (en) * 2003-01-13 2009-01-27 Eastman Chemical Company Polycarbonate compositions
US20040143041A1 (en) * 2003-01-13 2004-07-22 Pearson Jason Clay Polyester compositions
US7297735B2 (en) * 2003-03-05 2007-11-20 Eastman Chemical Company Polycarbonate compositions
US20040151854A1 (en) * 2003-02-03 2004-08-05 Pecorini Thomas Joseph Extrusion blow molded articles
US20040192813A1 (en) * 2003-03-20 2004-09-30 Pearson Jason Clay Polymer compositions containing an ultraviolet light absorbing compound
US7338992B2 (en) * 2003-03-05 2008-03-04 Eastman Chemical Company Polyolefin compositions
CN100594220C (zh) * 2003-03-05 2010-03-17 伊士曼化工公司 聚合物共混物
US20040180994A1 (en) * 2003-03-05 2004-09-16 Pearson Jason Clay Polyolefin compositions
JP2006519916A (ja) * 2003-03-05 2006-08-31 イーストマン ケミカル カンパニー 紫外線吸収性化合物を含むポリマー組成物
US20050277771A1 (en) * 2003-03-20 2005-12-15 Pearson Jason C Process for the preparation of a hindered amine light stabilizer salt
US7135541B2 (en) * 2003-06-06 2006-11-14 Eastman Chemical Company Polyester process using a pipe reactor
US7074879B2 (en) 2003-06-06 2006-07-11 Eastman Chemical Company Polyester process using a pipe reactor
US20050054757A1 (en) * 2003-09-10 2005-03-10 Pearson Jason Clay Method for reducing the acetaldehyde level in polyesters
US20050187374A1 (en) * 2004-02-20 2005-08-25 Bin Chen Polyester synthesis with enhanced titanium catalyst composition
US7332548B2 (en) 2004-03-04 2008-02-19 Eastman Chemical Company Process for production of a polyester product from alkylene oxide and carboxylic acid
DE102004010680A1 (de) 2004-03-04 2005-10-06 Zimmer Ag Verfahren zur Herstellung von hochkondensierten Polyestern in der festen Phase
US7368523B2 (en) * 2004-11-12 2008-05-06 Eastman Chemical Company Polyester polymer and copolymer compositions containing titanium nitride particles
US7582690B2 (en) * 2004-11-19 2009-09-01 Eastman Chemical Company Stabilized aliphatic polyester compositions
US7812111B2 (en) 2005-06-17 2010-10-12 Eastman Chemical Company LCD films comprising polyester compositions formed from 2,2,4,4-tetramethy1-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol
US8557950B2 (en) 2005-06-16 2013-10-15 Grupo Petrotemex, S.A. De C.V. High intrinsic viscosity melt phase polyester polymers with acceptable acetaldehyde generation rates
US20100222543A1 (en) * 2005-08-22 2010-09-02 Reliance Industries Ltd Process for the production of slow crystallizing polyester resin
ATE547451T1 (de) * 2005-09-01 2012-03-15 Mitsubishi Chem Corp Verfahren zur mehrstufigen festphasenpolykondensation von polyethylenterephthalat
US7655746B2 (en) 2005-09-16 2010-02-02 Eastman Chemical Company Phosphorus containing compounds for reducing acetaldehyde in polyesters polymers
DE102006012587B4 (de) * 2006-03-16 2015-10-29 Lurgi Zimmer Gmbh Verfahren und Vorrichtung zur Kristallisation von Polyestermaterial
US7211634B1 (en) 2006-04-28 2007-05-01 Eastman Chemical Company Process for the preparation of polyesters containing 1,4-cyclohexanedimethanol
KR20090033883A (ko) * 2006-08-02 2009-04-06 미쓰비시 가가꾸 가부시키가이샤 폴리에스테르 수지 입자, 및 그 제조 방법
US20080085390A1 (en) 2006-10-04 2008-04-10 Ryan Thomas Neill Encapsulation of electrically energized articles
US8287991B2 (en) 2006-10-04 2012-10-16 Eastman Chemical Company Using branched polymers to control the dimensional stability of articles in the lamination process
US7943094B2 (en) 2006-12-07 2011-05-17 Grupo Petrotemex, S.A. De C.V. Polyester production system employing horizontally elongated esterification vessel
US7649109B2 (en) 2006-12-07 2010-01-19 Eastman Chemical Company Polyester production system employing recirculation of hot alcohol to esterification zone
US20080167440A1 (en) * 2007-01-10 2008-07-10 Pickel Deanna L Use of copolymerizable sulfonate salts to promote char formation in polyesters and copolyesters
US7863477B2 (en) 2007-03-08 2011-01-04 Eastman Chemical Company Polyester production system employing hot paste to esterification zone
US7868129B2 (en) 2007-07-12 2011-01-11 Eastman Chemical Company Sloped tubular reactor with spaced sequential trays
US7829653B2 (en) 2007-07-12 2010-11-09 Eastman Chemical Company Horizontal trayed reactor
US7872089B2 (en) 2007-07-12 2011-01-18 Eastman Chemical Company Multi-level tubular reactor with internal tray
US7858730B2 (en) 2007-07-12 2010-12-28 Eastman Chemical Company Multi-level tubular reactor with dual headers
US7868130B2 (en) 2007-07-12 2011-01-11 Eastman Chemical Company Multi-level tubular reactor with vertically spaced segments
US7872090B2 (en) 2007-07-12 2011-01-18 Eastman Chemical Company Reactor system with optimized heating and phase separation
US7847053B2 (en) 2007-07-12 2010-12-07 Eastman Chemical Company Multi-level tubular reactor with oppositely extending segments
US7842777B2 (en) 2007-07-12 2010-11-30 Eastman Chemical Company Sloped tubular reactor with divided flow
US9074092B2 (en) 2010-12-20 2015-07-07 Eastman Chemical Company Miscible polyester blends utilizing recycled polyesters
JP5678667B2 (ja) * 2011-01-05 2015-03-04 三菱化学株式会社 脂肪族ポリエステルの製造方法
US9150006B2 (en) 2011-06-23 2015-10-06 Eastman Chemical Company Lamination process optimization utilizing neopentyl glycol-modified polyesters
DE102011089056A1 (de) * 2011-12-19 2013-06-20 Evonik Industries Ag Verfahren zur Herstellung von Polyestern
US9517584B2 (en) 2013-12-18 2016-12-13 Eastman Chemical Company Articles comprising isosorbide and processes for their manufacture
US10590235B2 (en) * 2015-09-14 2020-03-17 Synvina C.V. Process for the preparation of a polyester
CN108368223A (zh) 2015-12-22 2018-08-03 埃克森美孚化学专利公司 对苯二甲酸酯-共聚-联苯甲酸酯聚酯
US20190276592A1 (en) 2016-11-23 2019-09-12 Exxonmobil Chemical Patents Inc. Diacid modified copolyesters
US20200262970A1 (en) 2016-11-23 2020-08-20 Exxonmobil Chemical Patents Inc. Bibenzoate copolyesters
WO2019152529A1 (en) 2018-01-31 2019-08-08 Exxonmobil Chemical Patents Inc. Fiber reinforced terephthalate-co-4,4'-bibenzoate copolyester
WO2019182693A1 (en) 2018-03-21 2019-09-26 Exxonmobil Chemical Patents Inc. Functionalized bifuran and synthesis thereof
US10899881B1 (en) 2018-07-23 2021-01-26 Kevin L. Rollick Polyester modification method
US11001694B1 (en) 2018-07-23 2021-05-11 Kevin L. Rollick Modification of polyester resins after melt polymerization
JPWO2023157778A1 (ko) 2022-02-16 2023-08-24
CN118679206A (zh) 2022-02-16 2024-09-20 三菱瓦斯化学株式会社 固化性树脂的制造方法
WO2023157777A1 (ja) 2022-02-16 2023-08-24 三菱瓦斯化学株式会社 硬化性樹脂、その硬化物、樹脂組成物、及び硬化性樹脂の製造方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2365934C3 (de) * 1973-08-10 1983-12-15 Faserwerke Hüls GmbH, 4370 Marl Herstellung von hochmolekularen Polyestern
DE2559290B2 (de) * 1975-12-31 1979-08-02 Davy International Ag, 6000 Frankfurt Verfahren zur kontinuierlichen Herstellung von hochmolekularem PoIyäthylenterephthalat
US4165420A (en) * 1977-11-10 1979-08-21 The Goodyear Tire & Rubber Company Solid state polymerization of polyester prepolymer
US4154920A (en) * 1978-03-13 1979-05-15 Owens-Illinois, Inc. Methods for producing improved stable polyethylene terephthalate
US4161578A (en) * 1978-05-12 1979-07-17 Bepex Corporation Process for solid phase polymerization of polyester

Also Published As

Publication number Publication date
BE883799A (fr) 1980-10-01
JPH0212973B2 (ko) 1990-04-03
GB2051100B (en) 1983-10-26
AU532816B2 (en) 1983-10-13
BR8003311A (pt) 1980-12-30
KR840000282B1 (ko) 1984-03-13
MX156234A (es) 1988-07-27
IT8048921A0 (it) 1980-06-09
US4238593B1 (en) 1994-03-22
AU5825380A (en) 1980-12-18
US4238593A (en) 1980-12-09
GB2051100A (en) 1981-01-14
FR2465759A1 (fr) 1981-03-27
DE3022076A1 (de) 1981-01-22
IT1128160B (it) 1986-05-28
CA1139493A (en) 1983-01-11
JPS562321A (en) 1981-01-12
FR2465759B1 (ko) 1983-05-27

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