JPS6448820A - Polyester copolymer and its production - Google Patents
Polyester copolymer and its productionInfo
- 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
Links
- 229920000728 polyester Polymers 0.000 title 1
- 229920000070 poly-3-hydroxybutyrate Polymers 0.000 abstract 3
- 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
- REKYPYSUBKSCAT-UHFFFAOYSA-N 3-hydroxypentanoic acid Chemical group CCC(O)CC(O)=O REKYPYSUBKSCAT-UHFFFAOYSA-N 0.000 abstract 1
- YSXDKDWNIPOSMF-UHFFFAOYSA-N 5-chloropentanoic acid Chemical compound OC(=O)CCCCCl YSXDKDWNIPOSMF-UHFFFAOYSA-N 0.000 abstract 1
- PHOJOSOUIAQEDH-UHFFFAOYSA-N 5-hydroxypentanoic acid Chemical group OCCCCC(O)=O PHOJOSOUIAQEDH-UHFFFAOYSA-N 0.000 abstract 1
- 241000588986 Alcaligenes Species 0.000 abstract 1
- 241000894006 Bacteria Species 0.000 abstract 1
- 239000001963 growth medium Substances 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
- 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.
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)
| 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)
| 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 |
-
1987
- 1987-08-18 JP JP62204537A patent/JPH07113055B2/en not_active Expired - Lifetime
Patent Citations (1)
| 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)
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
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| R250 | Receipt of annual fees |
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| R250 | Receipt of annual fees |
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| EXPY | Cancellation because of completion of term | ||
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20071206 Year of fee payment: 12 |