JPS6448820A - Polyester copolymer and its production - Google Patents

Polyester copolymer and its production

Info

Publication number
JPS6448820A
JPS6448820A JP62204537A JP20453787A JPS6448820A JP S6448820 A JPS6448820 A JP S6448820A JP 62204537 A JP62204537 A JP 62204537A JP 20453787 A JP20453787 A JP 20453787A JP S6448820 A JPS6448820 A JP S6448820A
Authority
JP
Japan
Prior art keywords
hydroxybutyrate
cells
units
stage
ability
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
JP62204537A
Other languages
Japanese (ja)
Other versions
JPH07113055B2 (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 Kasei Corp
Original Assignee
Mitsubishi Kasei Corp
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 filed Critical Mitsubishi Kasei Corp
Priority to JP62204537A priority Critical patent/JPH07113055B2/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 JPS6448820A publication Critical patent/JPS6448820A/en
Publication of JPH07113055B2 publication Critical patent/JPH07113055B2/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)
  • Medicinal Preparation (AREA)
  • Materials For Medical Uses (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Artificial Filaments (AREA)

Abstract

PURPOSE:To obtain the title copolymer in an industrially advantageous manner, 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 fomer stage under culture conditions of a pH of 6-10 and 20-40 deg.C and cultured 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 a mono- to tetra-valent metal atom), e.g., 5-chlorovaleric acid, in an amount of 3-40g per liter of the culture medium or solution under conditions of limited N or P to allow the bacteria to produce and accumulate poly-3-hydroxybutyrate in their cells. The cells are recovered, washed and dried, and a poor solvent is added to the dried cells to obtain the title copolymer comprising 2-50mol.% 3-hydroxybutyrate units, 3-95mol.% 3-hydroxyvalerate units and 3-90mol.% 5-hydroxyvalerate units and having an intrinsic viscosity (in chloroform at 30 deg.C) of 0.4-10.0dl/g.
JP62204537A 1987-08-18 1987-08-18 Polyester copolymer and method for producing the same Expired - Lifetime JPH07113055B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP62204537A JPH07113055B2 (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
JP62204537A JPH07113055B2 (en) 1987-08-18 1987-08-18 Polyester copolymer and method for producing the same

Publications (2)

Publication Number Publication Date
JPS6448820A true JPS6448820A (en) 1989-02-23
JPH07113055B2 JPH07113055B2 (en) 1995-12-06

Family

ID=16492175

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62204537A Expired - Lifetime JPH07113055B2 (en) 1987-08-18 1987-08-18 Polyester copolymer and method for producing the same

Country Status (1)

Country Link
JP (1) JPH07113055B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993005824A1 (en) * 1991-09-27 1993-04-01 Terumo Kabushiki Kaisha Flexible member for medical use
KR20010081687A (en) * 2000-02-18 2001-08-29 윤여생 Infusion sets of biodegradation property

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5869224A (en) * 1981-07-07 1983-04-25 ゼネカ・リミテッド Production of thermoplastic polyester by microbe

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5869224A (en) * 1981-07-07 1983-04-25 ゼネカ・リミテッド Production of thermoplastic polyester by microbe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993005824A1 (en) * 1991-09-27 1993-04-01 Terumo Kabushiki Kaisha Flexible member for medical use
KR20010081687A (en) * 2000-02-18 2001-08-29 윤여생 Infusion sets of biodegradation property

Also Published As

Publication number Publication date
JPH07113055B2 (en) 1995-12-06

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