KR910008019A - 폴리이미드/지방족 폴리에스테르 공중합체 - Google Patents

폴리이미드/지방족 폴리에스테르 공중합체 Download PDF

Info

Publication number
KR910008019A
KR910008019A KR1019900016342A KR900016342A KR910008019A KR 910008019 A KR910008019 A KR 910008019A KR 1019900016342 A KR1019900016342 A KR 1019900016342A KR 900016342 A KR900016342 A KR 900016342A KR 910008019 A KR910008019 A KR 910008019A
Authority
KR
South Korea
Prior art keywords
bis
aminophenoxy
diamine
mda
dianhydride
Prior art date
Application number
KR1019900016342A
Other languages
English (en)
Other versions
KR100186775B1 (ko
Inventor
윈스톤 호 윈-소우
사르토리 구이도
알랜 탈러 워렌
크레이그 달림플 데이비드
Original Assignee
앤 허쉬코비츠 제이콥슨
엑손 리써치 앤드 엔지니어링 캄파니
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 앤 허쉬코비츠 제이콥슨, 엑손 리써치 앤드 엔지니어링 캄파니 filed Critical 앤 허쉬코비츠 제이콥슨
Publication of KR910008019A publication Critical patent/KR910008019A/ko
Priority to KR1019980034636A priority Critical patent/KR100195664B1/ko
Application granted granted Critical
Publication of KR100186775B1 publication Critical patent/KR100186775B1/ko

Links

Classifications

    • 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
    • C08G69/00Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D61/00Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/36Pervaporation; Membrane distillation; Liquid permeation
    • B01D61/362Pervaporation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D61/00Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/36Pervaporation; Membrane distillation; Liquid permeation
    • B01D61/362Pervaporation
    • B01D61/3621Pervaporation comprising multiple pervaporation steps
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D71/00Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06Organic material
    • B01D71/48Polyesters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D71/00Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06Organic material
    • B01D71/76Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74
    • B01D71/80Block polymers
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00Purification; Separation; Use of additives
    • C07C7/144Purification; Separation; Use of additives using membranes, e.g. selective permeation
    • 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
    • C08G73/00Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
    • C08G73/06Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
    • C08G73/10Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
    • C08G73/16Polyester-imides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Water Supply & Treatment (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Analytical Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)

Abstract

내용 없음

Description

폴리이미드/지방족 폴리에스테르 공중합체
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 2개의 염소를 가진 폴리우레아/우레탄 경성 분절(segment) 및 분자량 2000의 폴리에틸렌 아디페이트(PEA 2000) 연성 분절을 함유하는 공중합체의 합성 및 조성을 도시한다.
제2도는 폴리우레탄의 연성 분절이 수착성(sorption) 즉, 선택성 및 투과성을 조절함을 도시한다.
제3도는 다른 경성 분절들을 가진 세가지의 폴리우레탄을 도시한다.

Claims (15)

  1. 탄소수 8 내지 20의 이무수물과 탄소수 2내지 30의 디아민으로부터 유도된 폴리이미드 경성 분절(hard segment), 및 폴리아디페이트, 폴리석시네이트, 폴리말로네이트, 폴리옥살레이트 또는 폴리글루타레이트인 올리고머성 지방족 폴리에스테르 연성 분절을 포함하는 공중합체 조성물을 포함한 박막을 통해 방향족 탄화수소를 선택적으로 투과시킴을 포함하는, 방향족 및 비방향족 화합물의 혼합물인 공급물로부터 방향족 화합물을 분리하는 방법.
  2. 제1항에 있어서, 상기 이무수물이 방향족 화합물인 방법.
  3. 제1항에 있어서, 상기 디아민이 페닐렌 디아민, 메틸렌 디아닐린(MDA), 메틸렌-디-o-클로로아닐린(MOCA), 메틸렌비스(디클로로아닐린)(테트라클로로 MDA), 메틸렌디사이클로헥실아민(H12-MDA), 메틸렌디클로로 사이클로헥실아민(H12-MOCA), 메틸렌 비스(디클로로 사이클로헥실아민)(테트라클로로 H12-MDA), 4,4'-(헥시플루오로이소프로필리덴)-비스아닐린(6F 디아민), 3,3'-디아미노페닐 설폰(3.3'DAPSON), 4,4'-디아미노페닐 설폰(4.4' DAPSON), 4.4' -디메틸-3.3'- 디아미노페닐 설폰(4.4' -디메틸-3,3'-DAPSON), 2,4-디아미노 큐멘, 메틸 비스(디-o-톨루이딘), 옥시디아닐린(ODA), 비스아닐린 A, 비스아닐린 M, 비스아닐린 P, 티오디아닐린, 2,2-비스[4-(4-아미노페녹시)페닐]프로판(BAPP), 비스[4-(4-아미노페녹시)페닐]설폰(BAPS), 4,4'-비스(4-아미노페녹시)비페닐(BAPB), 1,4-비스(4-아미노페녹시)벤젠(TPE-Q), 및 1,3-비스(4-아미노페녹시)벤젠(TPE-R)로 이루어진 그룹중에서 선택되는 방법.
  4. 제2항에 있어서, 상기 방향족 화합물이 파이로델리트산 이무수물, 3,3',4,4'-벤조패논 테트라카복실산 이무수물, 4,4'-(헥사플루오로이소프로필리덴)-비스(프탈산무수물), 4,4'-옥시디프탈산 무수물, 디페닐설폰-3,3', 4,4'-테트라카복실산 이무수물 및 3,3', 4,4'-비페닐테트라카복실산 이무수물로 이루어진 그룹중에서 선택되는 방법.
  5. 제1항에 있어서, 상기 폴리에스테르가 폴리에틸렌 아디페이트인 방법.
  6. 제1항에 있어서, 상기 폴리에스테르가 폴리에틸렌 석시네이트인 방법.
  7. 제1항에 있어서, 상기 디아민이 메틸렌 디-o-클로로아닐린인 방법.
  8. 130℃이상의 유리 전이 온도를 갖는 경성 분절 및 경성 분절의 Tg보다 낮은 Tg를 갖는 연성 분절을 포함하는 물질의 공중합체 조성물.
  9. 제8항에 있어서, 탄소수 8 내지 20의 이무수물과 탄소수 2 내지 30의 디아민으로부터 유도된 폴리이미드 경성 분절, 및 폴리아디페이트, 폴리석시네이트, 폴리말로네이트, 폴리옥살레이트 또는 폴리글루타레이트인 올리고머성 지방족 폴리에스테르 연성 분절을 포함하는 공중합체 조성물.
  10. 제9항에 있어서, 상기 이무수물이 방향족 화합물이 조성물.
  11. 제9항에 있어서, 상기 디아민이 페닐렌 디아민, 메틸렌 디아닐린(MDA), 메틸렌-디-o-클로로아닐린(MOCA), 메틸렌비스(디클로로아닐린)(테트라클로로 MDA), 메틸렌디사이클로헥실아민(H12-MDA), 메틸렌디클로로 사이클로헥실아민(H12-MOCA), 메틸렌 비스(디클로로 사이클로헥실아민)(테트라클로로 H12-MDA), 4,4'-(헥사플루오로이소프로필리덴)-비스 아닐린(6F 디아민), 3,3'-디아미노페닐 설폰(3,3' DAPSON), 4,4'-디아미노페닐 설폰(4,4' DAPSON), 4,4'-디메틸-3,3'-디아미노페닐 설폰(4,4'-디메틸-3,3'-DAPSON), 2,4-디아미노 큐멘, 메틸 비스(디-o-톨루이딘), 옥시디아닐린(ODA), 비스 아닐린 A, 비스아닐린 M, 비스아닐린 P, 티오디아닐린, 2,2-비스[4-(4-아미노페녹시)페닐]프로판(BAPP), 비스[4-(4-아미노페녹시)페닐]설폰(BAPS), 4,4'-비스(4-아미노페녹시)비페닐(BAPB), 1,4-비스(4-아미노페녹시)벤젠(TPE-Q), 및 1,3-비스(4-아미노페녹시)벤젠(TPE-R)로 이루어진 그룹중에서 선택되는 조성물.
  12. 제10항에 있어서, 상기 방향족 화합물이 파이로멜리트산 이무수물, 3,3'4,4'-벤조패논 테트라카복실산 이무수물, 4,4'-(헥사플루오로이소프로필리덴)-비스(프탈산무수물), 4,4'-옥시디프탈산 무수물, 디페닐설폰-3,3', 4,4'-테트라카복실산 이무수물 및 3,3', 4,4'-비페닐테트라카복실산 이무수물로 이루어진 그룹중에서 선택되는 조성물.
  13. 제9항에 있어서, 상기 폴리에스테르가 폴리에틸렌 아디페이트인 조성물.
  14. 제9항에 있어서, 상기 폴리에스테르가 폴리에틸렌 석시네이트인 조성물.
  15. 제1항에 있어서, 상기 디아민이 메틸렌 디-o-클로로아닐린인 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019900016342A 1989-10-16 1990-10-15 폴리이미드/지방족 폴리에스테르 공중합체 조성물을 사용하여 방향족 및 비방향족 화합물의 혼합물로부터 방향족 화합물을 분리하는 방법 KR100186775B1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019980034636A KR100195664B1 (en) 1989-10-16 1998-08-26 Polyimide/aliphatic polyester copolymers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/422,385 US4944880A (en) 1989-10-16 1989-10-16 Polyimide/aliphatic polyester copolymers
US422,385 1989-10-16

Publications (2)

Publication Number Publication Date
KR910008019A true KR910008019A (ko) 1991-05-30
KR100186775B1 KR100186775B1 (ko) 1999-05-15

Family

ID=23674668

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900016342A KR100186775B1 (ko) 1989-10-16 1990-10-15 폴리이미드/지방족 폴리에스테르 공중합체 조성물을 사용하여 방향족 및 비방향족 화합물의 혼합물로부터 방향족 화합물을 분리하는 방법

Country Status (8)

Country Link
US (1) US4944880A (ko)
EP (1) EP0424041B1 (ko)
JP (1) JPH03207434A (ko)
KR (1) KR100186775B1 (ko)
CA (1) CA2026788C (ko)
DE (1) DE69026022T2 (ko)
ES (1) ES2084666T3 (ko)
MY (1) MY107151A (ko)

Families Citing this family (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5096592A (en) * 1990-12-06 1992-03-17 Exxon Research And Engineering Company Multi-block polymer comprising an ester prepolymer, chain extended with a compatible second prepolymer, the membrane made therefrom and its use in separations
US5049281A (en) * 1990-12-06 1991-09-17 Exxon Research And Engineering Company Multi-block polymer comprising a first prepolymer, made by combining epoxy with diamine, chain extended with a compatible second prepolymer, the membrane made therefrom and its use in separations
US5221481A (en) * 1990-12-06 1993-06-22 Exxon Research And Engineering Company Multi-block polymer comprising an ester prepolymer, made by combining epoxy with polyester, chain extended with a compatible second prepolymer, the membrane made therefrom and its use for separations
US5130017A (en) * 1990-12-06 1992-07-14 Exxon Research And Engineering Company Multi-block polymer comprising a first amide acid prepolymer, chain extended with a compatible second prepolymer, the membrane made therefrom and its use in separations
US5039417A (en) * 1990-12-06 1991-08-13 Exxon Research And Engineering Company Membrane made from a multi-block polymer comprising an imide or amide-acid prepolymer chain extended with a compatible second prepolymer and its use in separations
US5095171A (en) * 1991-04-08 1992-03-10 Exxon Research And Engineering Company Control of oxygen level in feed for improved aromatics/non-aromatics pervaporation (OP-3602)
US5128439A (en) * 1991-10-11 1992-07-07 Exxon Research And Engineering Company Saturated polyesters and crosslinked membranes therefrom for aromatics/saturates separation
US5138023A (en) * 1991-10-11 1992-08-11 Exxon Research And Engineering Company Unsaturated polyesters and crosslinked membranes therefrom for aromatics/saturates separation
US5180496A (en) * 1991-10-11 1993-01-19 Exxon Research And Engineering Company Unsaturated polyesters and crosslinked membranes therefrom for aromatics/saturates separation
US5177296A (en) * 1991-10-11 1993-01-05 Exxon Research And Engineering Company Saturated polyesters and crosslinked membranes therefrom for aromatics/saturates separation
US5241039A (en) * 1992-08-14 1993-08-31 Exxon Research & Engineering Company Polyimide/aliphatic polyester copolymers without pendent carboxylic acid groups (C-2662)
US5288712A (en) * 1992-10-07 1994-02-22 Exxon Research & Engineering Co. Pervaporation process employing permeate recycle
US5254795A (en) * 1992-10-07 1993-10-19 Exxon Research And Engineering Company Removal of 2-ring aromatics from low boiling streams containing low concentrations of same using membranes
US5230801A (en) * 1992-11-02 1993-07-27 Exxon Research And Engineering Company Recovery of alcohols from n-paraffins by pervaporation
US5262056A (en) * 1992-11-30 1993-11-16 Board Of Regents, The University Of Texas System Polyamides and polypyrrolones for fluid separation membranes
US5401891A (en) * 1993-12-17 1995-03-28 Exxon Chemical Patents Inc. Production of polymerization grade dicyclopentadiene
US5430224A (en) * 1994-04-15 1995-07-04 Exxon Research & Engineering Company Supercritical perstraction process
US5643442A (en) * 1994-07-19 1997-07-01 Exxon Research And Engineering Company Membrane process for enhanced distillate or hydrotreated distillate aromatics reduction
US5635055A (en) 1994-07-19 1997-06-03 Exxon Research & Engineering Company Membrane process for increasing conversion of catalytic cracking or thermal cracking units (law011)
US5550199A (en) * 1994-12-02 1996-08-27 Exxon Research And Engineering Company Diepoxide crosslinked/esterified polyimide-aliphatic polyester copolymers
FR2753702B1 (fr) * 1996-09-24 1999-12-03 Inst Francais Du Petrole Procede de purification du benzene comprenant deux etapes de permeation
FR2753701B1 (fr) * 1996-09-24 1998-11-27 Procede pour reduire la teneur en benzene d'une coupe d'hydrocarbures
US6187987B1 (en) * 1998-07-30 2001-02-13 Exxon Mobil Corporation Recovery of aromatic hydrocarbons using lubricating oil conditioned membranes
US6702945B2 (en) * 2000-12-28 2004-03-09 Exxonmobil Research And Engineering Company Ionic membranes for organic sulfur separation from liquid hydrocarbon solutions
US20020139719A1 (en) * 2000-12-28 2002-10-03 Minhas Bhupender S. Removal of thiophenic sulfur from gasoline by membrane separation process
US6649061B2 (en) 2000-12-28 2003-11-18 Exxonmobil Research And Engineering Company Membrane process for separating sulfur compounds from FCC light naphtha
US7052597B2 (en) * 2001-03-27 2006-05-30 Exxonmobil Research And Engineering Company Tuning fuel composition for driving cycle conditions in spark ignition engines
US6622663B2 (en) 2001-03-27 2003-09-23 Exxonmobil Research And Engineering Company Fuel composition supply means for driving cycle conditions in spark ignition engines
DE10149716A1 (de) * 2001-09-28 2003-04-30 Inst Polymerforschung Dresden Polymere Brennstoffzellen-Membran und Verfahren zu ihrer Herstellung
AU2004201546B2 (en) * 2003-04-15 2009-06-18 The Board Of Regents, The University Of Texas System Dithiolene functionalized polymer membrane for olefin/paraffin separation
US7540990B1 (en) * 2004-11-18 2009-06-02 Callaway Golf Company Cross-linked thermoplastic polyurethane/polyurea and method of making same
US7417094B2 (en) * 2004-11-18 2008-08-26 Pripro Polymer, Inc. Cross-linked thermoplastic polyurethane/polyurea and method of making same
US7638053B2 (en) * 2005-06-22 2009-12-29 General Electric Company Poly(meth)acrylate membranes for separation of hydrocarbon mixtures
US7785471B2 (en) * 2006-08-08 2010-08-31 Exxonmobil Research And Engineering Company Chromatographic membrane separation
US7708151B2 (en) * 2006-08-08 2010-05-04 Exxonmobil Research And Engineering Company Membrane for separating aromatic and aliphatic compounds
US7749387B2 (en) * 2006-08-08 2010-07-06 Exxonmobil Research And Engineering Company Integrally-layered polymeric membranes and method of use
US8083946B2 (en) * 2006-08-08 2011-12-27 Exxonmobil Research And Engineering Company Chemically cross-linked polymeric membranes and method of use
US20080035574A1 (en) * 2006-08-08 2008-02-14 Sabottke Craig Y Membrane Barrier films and method of use
US20080035567A1 (en) * 2006-08-08 2008-02-14 Sabottke Craig Y Enhanced membrane separation system
AU2009235992B2 (en) * 2007-05-11 2011-01-06 Siegfried Lanitz Covering Fabric for Aircraft in General Aviation
US8215496B2 (en) * 2008-01-28 2012-07-10 Promerus Llc Polynorbornene pervaporation membrane films, preparation and use thereof
US8119006B2 (en) * 2008-09-10 2012-02-21 Exxonmobil Research And Engineering Company Ethanol stable epoxy amine based membrane for aromatics separation
US20110163002A1 (en) * 2008-09-15 2011-07-07 Patent Department Process for enhanced propylene yield from cracked hydrocarbon feedstocks and reduced benzene in resulting naphtha fractions
US8765824B2 (en) 2011-04-19 2014-07-01 Exxonmobil Research And Engineering Company Ethanol stable polyether epoxy based membrane for ethanol and aromatics separation
KR20180023972A (ko) 2015-07-01 2018-03-07 쓰리엠 이노베이티브 프로퍼티즈 컴파니 Pvp-함유 및/또는 pvl-함유 복합막 및 사용 방법
CN107921370B (zh) 2015-07-01 2022-03-29 3M创新有限公司 聚合离聚物分离膜及其使用方法
KR20180022884A (ko) 2015-07-01 2018-03-06 쓰리엠 이노베이티브 프로퍼티즈 컴파니 개선된 성능 및/또는 내구성을 갖는 복합막 및 사용 방법
JP6612689B2 (ja) * 2016-06-28 2019-11-27 富士フイルム株式会社 計測支援装置及び計測支援方法
WO2021021380A1 (en) * 2019-07-26 2021-02-04 Exxonmobil Research And Enginnering Company Polyester copolymers and methods of making the same

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2193634A1 (en) * 1972-07-20 1974-02-22 Du Pont Polyimide semi-permeable membranes
US4323453A (en) * 1980-01-03 1982-04-06 Monsanto Company Tube sheets for permeators
US4323454A (en) * 1980-01-03 1982-04-06 Monsanto Company Tube sheets for permeators
US4575385A (en) * 1983-06-30 1986-03-11 Monsanto Company Permeation modified gas separation membranes
KR970009193B1 (ko) * 1986-05-27 1997-06-07 아더 엠. 킹 폴레페닐렌 에테르-폴리(알킬렌 디카복실레이트) 공중합체의 제조방법
JPS63152625A (ja) * 1986-07-07 1988-06-25 Idemitsu Kosan Co Ltd 新規ポリエステルおよびその製造法
EP0268955A3 (en) * 1986-11-14 1988-06-29 Mitsubishi Petrochemical Co., Ltd. Polyphenylene ether.polyamide copolymer-containing resin composition
US4758626A (en) * 1987-05-12 1988-07-19 General Electric Company Melt of an amorphous aromatic polyester with a melt of a carboxy terminated polyacrylate oligomer
US4822382A (en) * 1987-11-02 1989-04-18 Union Carbide Corporation Composite membranes, their manufacture and their use
DE3805856A1 (de) * 1988-02-25 1989-09-07 Bayer Ag Thermoplastische blockcopolymere aus vinyl- oder vinylidenpolymersegmenten und segmenten aus fluessig-kristallinen polymeren
US4800019A (en) * 1988-04-22 1989-01-24 Union Carbide Corporation Tubesheet for semipermeable membrane devices

Also Published As

Publication number Publication date
JPH03207434A (ja) 1991-09-10
EP0424041A3 (en) 1991-08-21
DE69026022D1 (de) 1996-04-25
US4944880A (en) 1990-07-31
MY107151A (en) 1995-09-30
CA2026788C (en) 2001-01-30
KR100186775B1 (ko) 1999-05-15
ES2084666T3 (es) 1996-05-16
EP0424041B1 (en) 1996-03-20
CA2026788A1 (en) 1991-04-17
DE69026022T2 (de) 1996-09-05
EP0424041A2 (en) 1991-04-24

Similar Documents

Publication Publication Date Title
KR910008019A (ko) 폴리이미드/지방족 폴리에스테르 공중합체
EP0479148B1 (en) Polyimide copolymer precursors
US5670052A (en) Separating aromatics from non-aromatics by polyimide-polyester membrane
US4990275A (en) Polyimide aliphatic polyester copolymers (C-2356)
KR101077944B1 (ko) 이미드 변성 엘라스토머
US4271288A (en) Novel polyamic acid polymers and polyimide derivatives thereof
JP2020019960A (ja) 剥離層形成用組成物
KR900701877A (ko) 디아미드산 첨가제를 사용하여 폴리아미드의 유전율을 저하시키는 방법
EP0317941A3 (en) Photosensitive polyimide polymer compositions
KR880000550A (ko) 액정 정렬제
KR20160014664A (ko) 에어로겔 합성 방법
EP0820805A3 (en) Separation membrane
CA2120781A1 (en) Polyimide oligomers
KR20090014141A (ko) 화상 형성 장치용 벨트
KR20090014338A (ko) 폴리이미드 수지
KR20010090804A (ko) 벌크 중합법으로 제조한 이미드 함유 중합체
TWI657101B (zh) 聚醯胺酸、聚醯亞胺、聚醯亞胺薄膜、含有聚醯亞胺薄膜的顯示裝置及製備聚醯胺酸的方法
KR960701166A (ko) 3층 폴리이미드실록산 접착 테이프(Three-layer polyimidesiloxane adhesive tape)
US3933745A (en) Imide copolymers possessing hydroxyl groups
US5756643A (en) Polymide copolymers containing polycarbonate soft segments
US4214071A (en) Amide-imide polymers
US5230801A (en) Recovery of alcohols from n-paraffins by pervaporation
US5241039A (en) Polyimide/aliphatic polyester copolymers without pendent carboxylic acid groups (C-2662)
KR950000805A (ko) 폴리이미드실옥산 용액 및 기판의 피복방법
KR950032556A (ko) 폴리이미드실록산 접착제

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20091016

Year of fee payment: 12

EXPY Expiration of term