JPS6448821A - Polyester copolymer and its production - Google Patents
Polyester copolymer and its productionInfo
- 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
Links
- 229920000728 polyester Polymers 0.000 title 1
- 229920000070 poly-3-hydroxybutyrate Polymers 0.000 abstract 3
- SJZRECIVHVDYJC-UHFFFAOYSA-N 4-hydroxybutyric acid Chemical compound OCCCC(O)=O SJZRECIVHVDYJC-UHFFFAOYSA-N 0.000 abstract 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 abstract 2
- 150000001875 compounds Chemical class 0.000 abstract 2
- 229920001577 copolymer Polymers 0.000 abstract 2
- 244000005700 microbiome Species 0.000 abstract 2
- WHBMMWSBFZVSSR-UHFFFAOYSA-N 3-hydroxybutyric acid Chemical group CC(O)CC(O)=O WHBMMWSBFZVSSR-UHFFFAOYSA-N 0.000 abstract 1
- 229940006015 4-hydroxybutyric acid Drugs 0.000 abstract 1
- 241000588986 Alcaligenes Species 0.000 abstract 1
- 241000894006 Bacteria Species 0.000 abstract 1
- 229910052736 halogen Inorganic materials 0.000 abstract 1
- 150000002367 halogens Chemical class 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
Landscapes
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Materials For Medical Uses (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Polyesters Or Polycarbonates (AREA)
- Preparation Of Compounds By Using Micro-Organisms (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.
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)
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)
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 comprising polyhydroxyalkanoate and 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 |
-
1987
- 1987-08-18 JP JP62204538A patent/JPH0819227B2/en not_active Expired - Lifetime
Cited By (6)
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 |
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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Legal Events
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