SG52705A1 - Copolymerization of tetrahydrofurans and cyclic anhydrides - Google Patents

Copolymerization of tetrahydrofurans and cyclic anhydrides

Info

Publication number
SG52705A1
SG52705A1 SG1996008111A SG1996008111A SG52705A1 SG 52705 A1 SG52705 A1 SG 52705A1 SG 1996008111 A SG1996008111 A SG 1996008111A SG 1996008111 A SG1996008111 A SG 1996008111A SG 52705 A1 SG52705 A1 SG 52705A1
Authority
SG
Singapore
Prior art keywords
tetrahydrofurans
copolymerization
cyclic anhydrides
anhydrides
cyclic
Prior art date
Application number
SG1996008111A
Other languages
English (en)
Inventor
Neville Everton Drysdale
Original Assignee
Du Pont
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 Du Pont filed Critical Du Pont
Publication of SG52705A1 publication Critical patent/SG52705A1/en

Links

Classifications

    • 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
    • C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
    • C08G65/26—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
    • C08G65/2642—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds characterised by the catalyst used
    • C08G65/2645—Metals or compounds thereof, e.g. salts
    • 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
    • C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
    • C08G65/04—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers only
    • C08G65/06—Cyclic ethers having no atoms other than carbon and hydrogen outside the ring
    • C08G65/16—Cyclic ethers having four or more ring atoms
    • C08G65/20—Tetrahydrofuran
    • 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
    • C08G63/66—Polyesters containing oxygen in the form of ether groups
    • C08G63/668—Polyesters containing oxygen in the form of ether groups derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/672—Dicarboxylic acids and dihydroxy compounds
    • 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
    • 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
    • C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
    • C08G65/04—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers only
    • C08G65/06—Cyclic ethers having no atoms other than carbon and hydrogen outside the ring
    • C08G65/08—Saturated oxiranes
    • C08G65/10—Saturated oxiranes characterised by the catalysts used
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
    • C08L71/02—Polyalkylene oxides

Landscapes

  • 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)
  • Polyethers (AREA)
SG1996008111A 1993-02-23 1993-10-29 Copolymerization of tetrahydrofurans and cyclic anhydrides SG52705A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2136993A 1993-02-23 1993-02-23

Publications (1)

Publication Number Publication Date
SG52705A1 true SG52705A1 (en) 1998-09-28

Family

ID=21803803

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1996008111A SG52705A1 (en) 1993-02-23 1993-10-29 Copolymerization of tetrahydrofurans and cyclic anhydrides

Country Status (7)

Country Link
EP (1) EP0686167B1 (de)
JP (1) JPH08506851A (de)
KR (1) KR100291008B1 (de)
DE (1) DE69319626T2 (de)
ES (1) ES2118265T3 (de)
SG (1) SG52705A1 (de)
WO (1) WO1994019392A1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5635585A (en) * 1992-10-21 1997-06-03 E. I. Du Pont De Nemours And Company Polymerization of, and depolymerization to, cyclic ethers using selected metal compound catalysts
ES2147343T3 (es) * 1993-07-16 2000-09-01 Du Pont Despolimerizacion de polieteres usando catalizadores heterogeneos.
ES2161854T3 (es) * 1993-10-21 2001-12-16 Du Pont Preparacion de poli(eteres-esteres) a partir de tetrahidrofuranos y acidos policarboxilicos.
US6051603A (en) * 1998-01-20 2000-04-18 Wayne Hughes Institute Vanadium (IV) metallocene complexes having sperm motility inhibiting activity
JP3614806B2 (ja) * 2000-09-28 2005-01-26 三洋化成工業株式会社 ヘテロ環状化合物の開環重合用金属触媒
JP5414049B2 (ja) * 2008-10-10 2014-02-12 独立行政法人産業技術総合研究所 コハク酸系共重合体の製造方法とその共重合体
JP7001518B2 (ja) * 2017-05-30 2022-02-15 三洋化成工業株式会社 環状化合物組成物及びその製造方法
CN113087884B (zh) * 2021-05-27 2021-12-17 天津大学 一种制备聚丁二酸丁二醇酯的方法
CN113185679B (zh) * 2021-05-27 2022-02-08 天津大学 一种聚醚酯的制备方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1069767A (en) * 1963-11-02 1967-05-24 Nippon Oil Co Ltd Polymeric reaction products of tertahydrofuran and dicarboxylic acid cyclic anhydrides and a method of preparing the same
US4721559A (en) * 1986-10-17 1988-01-26 Olah George A Boron, aluminum and gallium perfluoro alkanesulfonate and resinsulfonate catalysts
US5130470A (en) * 1991-03-27 1992-07-14 E. I. Du Pont De Nemours And Company Polymerization of tetrahydrofuran using a fluorinated acidic catalyst and maleic acid/maleic anhydride mixture as molecular weight control agent
JPH07231438A (ja) * 1994-02-16 1995-08-29 Miharu Tsushin Kk Ｃａｔｖ用増幅器

Also Published As

Publication number Publication date
KR960701125A (ko) 1996-02-24
EP0686167B1 (de) 1998-07-08
DE69319626D1 (de) 1998-08-13
ES2118265T3 (es) 1998-09-16
JPH08506851A (ja) 1996-07-23
KR100291008B1 (ko) 2001-09-17
DE69319626T2 (de) 1999-02-11
WO1994019392A1 (en) 1994-09-01
EP0686167A1 (de) 1995-12-13

Similar Documents

Publication Publication Date Title
EP0692971A4 (de) Peptid yy-analogen und verwendungen dafür
HU9302049D0 (en) Trans-splitting ribosimes and elimination of cells using them
GB9408184D0 (en) Distributed clock signal and clock signal interrupt
GB9226229D0 (en) Detection of macromolecules
IL108175A0 (en) Cloning and expression of xylanase B
PL312835A1 (en) Changing composition and methods of its application
SG52705A1 (en) Copolymerization of tetrahydrofurans and cyclic anhydrides
HK1000245A1 (en) Benzopyran and related ltb4-antagonists
EP0652496A4 (de) Uhrenzifferblatt und uhr.
KR950014543B1 (en) Echoelimination and euqalization of telecommunication
SG70963A1 (en) Timing of deflection waveform correction circuit
KR0149516B1 (en) Waveform synthesizing circuit and transmitter circuit
GB2275955B (en) Construction of coastal defences
ZA944577B (en) Preparation of aminopropionitriles
GB8922739D0 (en) Recognition and processing of waveforms
GB2275266A8 (en) Preparation of 2-methyl-3-aminobenzotrifluoride
GB2251599B (en) Packaging and methods of making packaging
ZA942246B (en) Novel imidazolo-quinoxalinones their preparation and use
AU4041493A (en) Shuttlecock of various uses
GB9219756D0 (en) Elastic wave device and method of producing the same
GB9321559D0 (en) Detection of gums and stabilisers
GB8901060D0 (en) Middlesex health-,wealth-,and power-livingry ii
HU9301746D0 (en) Game of chance named nextoto
HU9300641D0 (en) Game of chance named bogyocsok
GB9312097D0 (en) Detection and isolation of adhesins binding to lewis