JPS54119595A - Biodegradable copolymer and its preparation - Google Patents
Biodegradable copolymer and its preparationInfo
- Publication number
- JPS54119595A JPS54119595A JP2688978A JP2688978A JPS54119595A JP S54119595 A JPS54119595 A JP S54119595A JP 2688978 A JP2688978 A JP 2688978A JP 2688978 A JP2688978 A JP 2688978A JP S54119595 A JPS54119595 A JP S54119595A
- Authority
- JP
- Japan
- Prior art keywords
- molecular weight
- amide
- ester
- weight aliphatic
- high molecular
- 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
Landscapes
- Materials For Medical Uses (AREA)
- Polyamides (AREA)
- Polyesters Or Polycarbonates (AREA)
- Biological Depolymerization Polymers (AREA)
- Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
- Medicinal Preparation (AREA)
Abstract
PURPOSE: To prepare a copolyester-amide consisting of alternately bonded low molecular weight blocks, by ester-amide exchange reaction of a mixture of a high molecular weight aliphatic polyester and polyamide at a specific condition.
CONSTITUTION: A mixture of a high molecular weight aliphatic polyester, e.g. polyethylene adipate, etc., with a high molecular weight aliphatic polyamide, e.g. nylon 6, etc., is melted and the ester-amide exchange reactions is carried out to prepare the product having a clearly lowered melting point. The reaction gives a biodegradable copolyesteramide having an alternately bonded structure ...A-B-A-B... wherein A is an ester block of a low molecular weight aliphatic polyester preferably of the formula I(X is aliphatic ester reside; n is 1W50) and B is an amide block of a low molecular weight aliphatic polyamide preferably of the formula II (Y is aliphatic amide residue; m is 1W25).
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2688978A JPS54119595A (en) | 1978-03-09 | 1978-03-09 | Biodegradable copolymer and its preparation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2688978A JPS54119595A (en) | 1978-03-09 | 1978-03-09 | Biodegradable copolymer and its preparation |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54119595A true JPS54119595A (en) | 1979-09-17 |
JPS5726688B2 JPS5726688B2 (en) | 1982-06-05 |
Family
ID=12205813
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2688978A Granted JPS54119595A (en) | 1978-03-09 | 1978-03-09 | Biodegradable copolymer and its preparation |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54119595A (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59213723A (en) * | 1983-05-20 | 1984-12-03 | Mitsui Petrochem Ind Ltd | Manufacture of polyamide copolymer |
WO1985002852A1 (en) * | 1983-12-27 | 1985-07-04 | Daicel Chemical Industries, Ltd. | Polyesteramides |
JPH0475423U (en) * | 1990-11-14 | 1992-07-01 | ||
EP0641817A2 (en) * | 1993-08-12 | 1995-03-08 | Bayer Ag | Thermoplastic biodegradable aliphatic polyesteramides |
US5446109A (en) * | 1993-02-23 | 1995-08-29 | Teijin Limited | Polyamide/aliphatic polyester block copolymer, process for the production thereof, and blend containing the same |
US5455311A (en) * | 1992-03-16 | 1995-10-03 | Bayer Ag | Thermoplastic block copolyesters capable of being composted for use as packaging materials |
US5457144A (en) * | 1992-03-06 | 1995-10-10 | Rohm And Haas Company | Degradable polyamides |
EP0717064A1 (en) * | 1994-12-16 | 1996-06-19 | Ems-Inventa Ag | Semi-crystalline block copolyesteramides |
WO1996021689A3 (en) * | 1995-01-13 | 1996-09-06 | Basf Ag | Biologically degradable polymers, processes for manufacturing the same and the use thereof for producing biodegradable moulded articles |
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 |
CN116507672A (en) * | 2020-12-07 | 2023-07-28 | 东洋纺Mc株式会社 | Polyamide resin composition |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3062946B1 (en) | 2017-02-15 | 2021-07-23 | Areva Np | DEVICE AND PROCEDURE FOR TIGHTNESS CONTROL BY WIPING A NUCLEAR FUEL ASSEMBLY |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51127198A (en) * | 1975-04-15 | 1976-11-05 | Aquitaine Total Organico | Preparation of sequence aliphatic copolyesteramide |
JPS5326891A (en) * | 1976-08-23 | 1978-03-13 | Standard Oil Co | Kyleneeformaldehyde resin composition and its preparation |
-
1978
- 1978-03-09 JP JP2688978A patent/JPS54119595A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51127198A (en) * | 1975-04-15 | 1976-11-05 | Aquitaine Total Organico | Preparation of sequence aliphatic copolyesteramide |
JPS5326891A (en) * | 1976-08-23 | 1978-03-13 | Standard Oil Co | Kyleneeformaldehyde resin composition and its preparation |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH032376B2 (en) * | 1983-05-20 | 1991-01-14 | Mitsui Petrochemical Ind | |
JPS59213723A (en) * | 1983-05-20 | 1984-12-03 | Mitsui Petrochem Ind Ltd | Manufacture of polyamide copolymer |
WO1985002852A1 (en) * | 1983-12-27 | 1985-07-04 | Daicel Chemical Industries, Ltd. | Polyesteramides |
JPH0475423U (en) * | 1990-11-14 | 1992-07-01 | ||
US5457144A (en) * | 1992-03-06 | 1995-10-10 | Rohm And Haas Company | Degradable polyamides |
US5455311A (en) * | 1992-03-16 | 1995-10-03 | Bayer Ag | Thermoplastic block copolyesters capable of being composted for use as packaging materials |
US5446109A (en) * | 1993-02-23 | 1995-08-29 | Teijin Limited | Polyamide/aliphatic polyester block copolymer, process for the production thereof, and blend containing the same |
EP0641817A3 (en) * | 1993-08-12 | 1996-08-07 | Bayer Ag | Thermoplastic biodegradable aliphatic polyesteramides. |
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 |
US5703177A (en) * | 1994-12-16 | 1997-12-30 | Ems-Inventa Ag | Partially crystalline block copolyester-polyamides |
WO1996021689A3 (en) * | 1995-01-13 | 1996-09-06 | Basf Ag | Biologically degradable polymers, processes for manufacturing the same and the use thereof for producing biodegradable moulded articles |
AU710607B2 (en) * | 1995-01-13 | 1999-09-23 | Basf Aktiengesellschaft | Biodegradable polymers, the preparation thereof and the use thereof for producing biodegradable moldings |
CN1070879C (en) * | 1995-01-13 | 2001-09-12 | 巴斯福股份公司 | Biologically degradable polymers, processes for manufacturing the same and the use thereof for producing bioldegradable moulded articles |
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 |
US6071711A (en) * | 1996-05-13 | 2000-06-06 | Bayer Ag | Degradation of biodegradable polyester amides with enzymes |
CN116507672A (en) * | 2020-12-07 | 2023-07-28 | 东洋纺Mc株式会社 | Polyamide resin composition |
Also Published As
Publication number | Publication date |
---|---|
JPS5726688B2 (en) | 1982-06-05 |
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