JPS6448821A - Polyester copolymer and its production - Google Patents

Polyester copolymer and its production

Info

Publication number
JPS6448821A
JPS6448821A JP62204538A JP20453887A JPS6448821A JP S6448821 A JPS6448821 A JP S6448821A JP 62204538 A JP62204538 A JP 62204538A JP 20453887 A JP20453887 A JP 20453887A JP S6448821 A JPS6448821 A JP S6448821A
Authority
JP
Japan
Prior art keywords
hydroxybutyrate
cells
multiplied
ability
microorganisms
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.)
Granted
Application number
JP62204538A
Other languages
Japanese (ja)
Other versions
JPH0819227B2 (en
Inventor
Yoshiharu Doi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Chemical Corp
Original Assignee
Mitsubishi Kasei Corp
Mitsubishi Chemical Industries Ltd
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 Mitsubishi Kasei Corp, Mitsubishi Chemical Industries Ltd filed Critical Mitsubishi Kasei Corp
Priority to JP62204538A priority Critical patent/JPH0819227B2/en
Priority to US07/230,461 priority patent/US4876331A/en
Priority to DE8888307635T priority patent/DE3879320T2/en
Priority to EP88307635A priority patent/EP0304293B1/en
Publication of JPS6448821A publication Critical patent/JPS6448821A/en
Publication of JPH0819227B2 publication Critical patent/JPH0819227B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Materials For Medical Uses (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Polyesters Or Polycarbonates (AREA)

Abstract

PURPOSE:To obtain the title copolymer of excellent impact resistance, by multiplying microorganisms having an ability of producing poly-3-hydroxybutyrate in the former stage and multiplying them in the presence of a specified compound under culture conditions of limited N or P in the latter stage. CONSTITUTION:Microorganisms having an ability of producing poly-3- hydroxybutyrate (e.g., Alcaligenes eutorophus) are multiplied in the former stage under culture conditions of a pH of 6-10 and 20-40 deg.C and multiplied in the presence of a compound of the formula (wherein X is OH or a halogen, n is 1-4, and Y is H or mono- to tetra-valent metal atom), e.g., 4- hydroxybutyric acid, to allow the bacteria to form and accumulate poly-3- hydroxybutyrate in their cells. The cells are recovered, and washed and dried, and a poor solvent is added to the cells to obtain the title copolymer comprising 97-40mol.% 3-hydroxybutyrate units and 3-60mol.% 4-hydroxybutyrate units and having an intrinsic viscosity (in chloroform at 30 deg.C) of 0.4-10.0dl/g.
JP62204538A 1987-08-18 1987-08-18 Polyester copolymer and method for producing the same Expired - Lifetime JPH0819227B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP62204538A JPH0819227B2 (en) 1987-08-18 1987-08-18 Polyester copolymer and method for producing the same
US07/230,461 US4876331A (en) 1987-08-18 1988-08-10 Copolyester and process for producing the same
DE8888307635T DE3879320T2 (en) 1987-08-18 1988-08-17 COPOLYESTER AND METHOD FOR THE PRODUCTION THEREOF.
EP88307635A EP0304293B1 (en) 1987-08-18 1988-08-17 Copolyester and process for producing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62204538A JPH0819227B2 (en) 1987-08-18 1987-08-18 Polyester copolymer and method for producing the same

Publications (2)

Publication Number Publication Date
JPS6448821A true JPS6448821A (en) 1989-02-23
JPH0819227B2 JPH0819227B2 (en) 1996-02-28

Family

ID=16492190

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62204538A Expired - Lifetime JPH0819227B2 (en) 1987-08-18 1987-08-18 Polyester copolymer and method for producing the same

Country Status (1)

Country Link
JP (1) JPH0819227B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5228282A (en) * 1988-04-15 1993-07-20 E. I. Du Pont De Nemours And Company Apparatus for forming alternate twist plied yarn
US5516565A (en) * 1993-06-10 1996-05-14 Terumo Kabushiki Kaisha Hydroxyalkanoate polymer composition
WO2004065609A1 (en) 2003-01-22 2004-08-05 Showa Denko K.K. Process for acyl-transfer enzyme reactions with acyl- coenzyme a
WO2020230807A1 (en) 2019-05-13 2020-11-19 三菱瓦斯化学株式会社 Aliphatic polyester copolymer
KR20230097008A (en) 2020-10-26 2023-06-30 미쯔비시 가스 케미칼 컴파니, 인코포레이티드 Bioabsorbable fibrous medical material

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6808907B2 (en) 2001-03-27 2004-10-26 Canon Kabushiki Kaisha Method and apparatus for producing polyhydroxyalkanoate
JP4027297B2 (en) 2002-10-24 2007-12-26 キヤノン株式会社 NOVEL POLYHYDROXYALKANOATE AND METHOD FOR PRODUCING THE SAME; RESIN COMPOSITION CONTAINING THE SAME; NOVEL POLYHYDROXYALKANOATE-CONTAINING CHARGE CONTROL AGENT, ELECTROSTATIC IMAGE DEVELOPING TONER AND Binder Resin Composition
JP2004331750A (en) 2003-05-02 2004-11-25 Canon Inc Magnetic structure containing polyhydroxyalkanoate, method for producing the same, and use thereof
JP4741883B2 (en) 2004-06-11 2011-08-10 キヤノン株式会社 Polyhydroxyalkanoate having ester group, carboxyl group and sulfonic acid group and method for producing the same
US8603720B2 (en) 2010-02-24 2013-12-10 Xerox Corporation Toner compositions and processes

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5228282A (en) * 1988-04-15 1993-07-20 E. I. Du Pont De Nemours And Company Apparatus for forming alternate twist plied yarn
US5516565A (en) * 1993-06-10 1996-05-14 Terumo Kabushiki Kaisha Hydroxyalkanoate polymer composition
WO2004065609A1 (en) 2003-01-22 2004-08-05 Showa Denko K.K. Process for acyl-transfer enzyme reactions with acyl- coenzyme a
US7943351B2 (en) 2003-01-22 2011-05-17 Showa Denko K.K. Method for acyltransferase reaction using acyl coenzyme A
WO2020230807A1 (en) 2019-05-13 2020-11-19 三菱瓦斯化学株式会社 Aliphatic polyester copolymer
KR20220007866A (en) 2019-05-13 2022-01-19 미쯔비시 가스 케미칼 컴파니, 인코포레이티드 aliphatic polyester copolymer
US12533841B2 (en) 2019-05-13 2026-01-27 Mitsubishi Gas Chemical Company, Inc. Aliphatic polyester copolymer
KR20230097008A (en) 2020-10-26 2023-06-30 미쯔비시 가스 케미칼 컴파니, 인코포레이티드 Bioabsorbable fibrous medical material

Also Published As

Publication number Publication date
JPH0819227B2 (en) 1996-02-28

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