JPS54119593A - Biodegradation of copolyester-amide - Google Patents
Biodegradation of copolyester-amideInfo
- Publication number
- JPS54119593A JPS54119593A JP2689078A JP2689078A JPS54119593A JP S54119593 A JPS54119593 A JP S54119593A JP 2689078 A JP2689078 A JP 2689078A JP 2689078 A JP2689078 A JP 2689078A JP S54119593 A JPS54119593 A JP S54119593A
- Authority
- JP
- Japan
- Prior art keywords
- aliphatic
- amide
- copolyester
- lipase
- treated
- 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
Abstract
PURPOSE: To degrade a specific aliphatic copolyester-amide easily and biologically, contacting with a (treated) lipase.
CONSTITUTION: A copolyester-amide consisting of (A) a number of ester blocks of a low molecular weight polyester preferably of the formula I (X is aliphatic ester residue derived from an aliphatic alcohol and an aliphatic carboxylic acid), and (B) a number of amide blocks of a low molecular weight aliphatic polyamide preferably of the formula II (Y is aliphatic amide residue derived from an aliphatic carboxylic acid and an aliphatic amine), is contacted with a (treated) lipase (e.g. crude lipase, etc.) and preferably together with a pH buffer, a surface active agent, a nylon oligomer decomposing enzyme, etc.
EFFECT: Useful for waste disposal.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2689078A JPS54119593A (en) | 1978-03-09 | 1978-03-09 | Biodegradation of copolyester-amide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2689078A JPS54119593A (en) | 1978-03-09 | 1978-03-09 | Biodegradation of copolyester-amide |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54119593A true JPS54119593A (en) | 1979-09-17 |
JPS5638115B2 JPS5638115B2 (en) | 1981-09-04 |
Family
ID=12205838
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2689078A Granted JPS54119593A (en) | 1978-03-09 | 1978-03-09 | Biodegradation of copolyester-amide |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54119593A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0641817A2 (en) * | 1993-08-12 | 1995-03-08 | Bayer Ag | Thermoplastic biodegradable aliphatic polyesteramides |
EP0717064A1 (en) * | 1994-12-16 | 1996-06-19 | Ems-Inventa Ag | Semi-crystalline block copolyesteramides |
WO1997040116A1 (en) * | 1996-04-22 | 1997-10-30 | Bayer Aktiengesellschaft | Use of biodegradable polyester amides as compostable melt adhesives |
WO1997043014A1 (en) * | 1996-05-13 | 1997-11-20 | Bayer Aktiengesellschaft | Degradation of biodegradable polyester amides with enzymes |
WO1998036019A1 (en) * | 1997-02-17 | 1998-08-20 | Wolff Walsrode Ag | Method for modifying products or half-stuffs from molding materials consisting of mixtures of thermoplastic synthetic materials |
WO1999029885A1 (en) * | 1997-12-05 | 1999-06-17 | Bayer Aktiengesellschaft | Degradation of biodegradable polymers |
US6172167B1 (en) | 1996-06-28 | 2001-01-09 | Universiteit Twente | Copoly(ester-amides) and copoly(ester-urethanes) |
US6254644B1 (en) | 1997-02-26 | 2001-07-03 | Bayer Aktiengesellschaft | Biologically degradable leather |
US6255451B1 (en) | 1997-02-17 | 2001-07-03 | Bayer Aktiengesellschaft | Degradation of biologically degradable polymers using enzymes |
-
1978
- 1978-03-09 JP JP2689078A patent/JPS54119593A/en active Granted
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0641817A2 (en) * | 1993-08-12 | 1995-03-08 | Bayer Ag | Thermoplastic biodegradable aliphatic polyesteramides |
EP0641817A3 (en) * | 1993-08-12 | 1996-08-07 | Bayer Ag | Thermoplastic biodegradable aliphatic polyesteramides. |
EP0717064A1 (en) * | 1994-12-16 | 1996-06-19 | Ems-Inventa Ag | Semi-crystalline block copolyesteramides |
US5703177A (en) * | 1994-12-16 | 1997-12-30 | Ems-Inventa Ag | Partially crystalline block copolyester-polyamides |
WO1997040116A1 (en) * | 1996-04-22 | 1997-10-30 | Bayer Aktiengesellschaft | Use of biodegradable polyester amides as compostable melt adhesives |
WO1997043014A1 (en) * | 1996-05-13 | 1997-11-20 | Bayer Aktiengesellschaft | Degradation of biodegradable polyester amides with enzymes |
US6172167B1 (en) | 1996-06-28 | 2001-01-09 | Universiteit Twente | Copoly(ester-amides) and copoly(ester-urethanes) |
WO1998036019A1 (en) * | 1997-02-17 | 1998-08-20 | Wolff Walsrode Ag | Method for modifying products or half-stuffs from molding materials consisting of mixtures of thermoplastic synthetic materials |
US6251968B1 (en) | 1997-02-17 | 2001-06-26 | Wolfe Walsrode Ag | Method for modifying products or half-stuffs from molding materials consisting of mixtures of thermoplastic synthetic materials |
US6255451B1 (en) | 1997-02-17 | 2001-07-03 | Bayer Aktiengesellschaft | Degradation of biologically degradable polymers using enzymes |
US6254644B1 (en) | 1997-02-26 | 2001-07-03 | Bayer Aktiengesellschaft | Biologically degradable leather |
WO1999029885A1 (en) * | 1997-12-05 | 1999-06-17 | Bayer Aktiengesellschaft | Degradation of biodegradable polymers |
Also Published As
Publication number | Publication date |
---|---|
JPS5638115B2 (en) | 1981-09-04 |
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