NZ235503A - Ring opening polymerisation of lactones and lactides using yttrium and/or rare earth metal compounds as catalysts; catalysts, films and coated articles - Google Patents

Ring opening polymerisation of lactones and lactides using yttrium and/or rare earth metal compounds as catalysts; catalysts, films and coated articles

Info

Publication number
NZ235503A
NZ235503A NZ235503A NZ23550390A NZ235503A NZ 235503 A NZ235503 A NZ 235503A NZ 235503 A NZ235503 A NZ 235503A NZ 23550390 A NZ23550390 A NZ 23550390A NZ 235503 A NZ235503 A NZ 235503A
Authority
NZ
New Zealand
Prior art keywords
yttrium
groups
polymerization
polymer
lactone
Prior art date
Application number
NZ235503A
Other languages
English (en)
Inventor
Stephen James Mclain
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 NZ235503A publication Critical patent/NZ235503A/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
    • 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
    • C08G63/06—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from hydroxycarboxylic acids
    • C08G63/08—Lactones or lactides
    • 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
    • C08G63/823—Preparation processes characterised by the catalyst used for the preparation of polylactones or polylactides

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)
  • Biological Depolymerization Polymers (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Medicinal Preparation (AREA)
  • Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
NZ235503A 1989-09-29 1990-09-28 Ring opening polymerisation of lactones and lactides using yttrium and/or rare earth metal compounds as catalysts; catalysts, films and coated articles NZ235503A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/414,964 US5028667A (en) 1989-09-29 1989-09-29 Yttrium and rare earth compounds catalyzed lactone polymerization

Publications (1)

Publication Number Publication Date
NZ235503A true NZ235503A (en) 1993-03-26

Family

ID=23643768

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ235503A NZ235503A (en) 1989-09-29 1990-09-28 Ring opening polymerisation of lactones and lactides using yttrium and/or rare earth metal compounds as catalysts; catalysts, films and coated articles

Country Status (20)

Country Link
US (1) US5028667A (cg-RX-API-DMAC7.html)
EP (1) EP0493529B1 (cg-RX-API-DMAC7.html)
JP (1) JP2858947B2 (cg-RX-API-DMAC7.html)
CN (1) CN1051367A (cg-RX-API-DMAC7.html)
AT (1) ATE124709T1 (cg-RX-API-DMAC7.html)
AU (1) AU6624490A (cg-RX-API-DMAC7.html)
BR (1) BR9007686A (cg-RX-API-DMAC7.html)
CA (1) CA2066029A1 (cg-RX-API-DMAC7.html)
DE (1) DE69020739T2 (cg-RX-API-DMAC7.html)
FI (1) FI921351L (cg-RX-API-DMAC7.html)
GR (1) GR900100721A (cg-RX-API-DMAC7.html)
IE (1) IE903483A1 (cg-RX-API-DMAC7.html)
IL (1) IL95804A0 (cg-RX-API-DMAC7.html)
MX (1) MX22628A (cg-RX-API-DMAC7.html)
NZ (1) NZ235503A (cg-RX-API-DMAC7.html)
PL (1) PL287107A1 (cg-RX-API-DMAC7.html)
PT (1) PT95470A (cg-RX-API-DMAC7.html)
WO (1) WO1991005001A1 (cg-RX-API-DMAC7.html)
YU (1) YU185290A (cg-RX-API-DMAC7.html)
ZA (1) ZA907797B (cg-RX-API-DMAC7.html)

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US5264547A (en) * 1991-04-12 1993-11-23 Takasago International Corporation Optically active ether lactone, optically active polymer thereof, and process for producing the polymer
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US5208297A (en) * 1991-12-30 1993-05-04 E. I. Du Pont De Nemours And Company Rare earth metal coordination compounds as lactone polymerization catalysts
US5292859A (en) * 1992-12-22 1994-03-08 E. I. Du Pont De Nemours And Company Rare earth metal coordination compounds as lactone polymerization catalysts
US5225521A (en) * 1991-12-31 1993-07-06 E. I. Du Pont De Nemours And Company Star-shaped hydroxyacid polymers
US5142023A (en) * 1992-01-24 1992-08-25 Cargill, Incorporated Continuous process for manufacture of lactide polymers with controlled optical purity
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US5247058A (en) * 1992-01-24 1993-09-21 Cargill, Incorporated Continuous process for manufacture of lactide polymers with controlled optical purity
US5258488A (en) * 1992-01-24 1993-11-02 Cargill, Incorporated Continuous process for manufacture of lactide polymers with controlled optical purity
US6005067A (en) 1992-01-24 1999-12-21 Cargill Incorporated Continuous process for manufacture of lactide polymers with controlled optical purity
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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
US5317064A (en) * 1992-12-11 1994-05-31 E. I. Du Pont De Nemours And Company Manufacture of polylactide stereocomplexes
US5420235A (en) * 1993-01-21 1995-05-30 E. I. Du Pont De Nemours And Company Continuous poly (hydroxy acid) polymerization using a counter-current impeller mixing system
US5631066A (en) * 1993-01-25 1997-05-20 Chronopol, Inc. Process for making metalized films and films produced therefrom
US5202413A (en) * 1993-02-16 1993-04-13 E. I. Du Pont De Nemours And Company Alternating (ABA)N polylactide block copolymers
US5342969A (en) * 1993-03-03 1994-08-30 E. I. Du Pont De Nemours And Company Recovery of hydroxycarboxylic acid values from poly(hydroxycarboxylic acids)
US5310599A (en) * 1993-05-06 1994-05-10 E. I. Du Pont De Nemours And Company Method for making polymers of alpha-hydroxy acids
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US5374743A (en) * 1993-09-30 1994-12-20 E. I. Du Pont De Nemours And Company Process for the synthesis of lactide or glycolide from lactic acid or glycolide acid oligomers
US5489651A (en) * 1994-02-14 1996-02-06 The Regents Of The University Of California Polymerization using bimetallic bis-lanthanoid initiators
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US5475069A (en) * 1994-10-31 1995-12-12 E. I. Du Pont De Nemours And Company Polymerization of vinyl ethers
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US5622532A (en) * 1996-06-20 1997-04-22 Chevron Chemical Company Polylactone aromatic esters and fuel compositions containing the same
US5618319A (en) * 1996-06-20 1997-04-08 Chevron Chemical Company Alkylamine polylactone aminocarbamates and fuel compositions containing the same
CN1080737C (zh) * 1998-06-23 2002-03-13 北京服装学院高分子材料研究所 聚酯类聚合物合成的混合催化剂
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Also Published As

Publication number Publication date
FI921351A7 (fi) 1992-03-27
ATE124709T1 (de) 1995-07-15
EP0493529A1 (en) 1992-07-08
PT95470A (pt) 1991-05-22
GR900100721A (el) 1992-01-20
CN1051367A (zh) 1991-05-15
IE903483A1 (en) 1991-04-10
WO1991005001A1 (en) 1991-04-18
PL287107A1 (en) 1992-03-23
MX22628A (es) 1993-11-01
JP2858947B2 (ja) 1999-02-17
FI921351A0 (fi) 1992-03-27
FI921351L (fi) 1992-03-27
JPH05500982A (ja) 1993-02-25
DE69020739D1 (de) 1995-08-10
IL95804A0 (en) 1991-06-30
ZA907797B (en) 1992-05-27
US5028667A (en) 1991-07-02
EP0493529B1 (en) 1995-07-05
BR9007686A (pt) 1992-08-18
CA2066029A1 (en) 1991-03-30
US5028667B1 (cg-RX-API-DMAC7.html) 1993-02-09
YU185290A (sh) 1992-09-07
AU6624490A (en) 1991-04-28
DE69020739T2 (de) 1995-11-23

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