JPS54119595A - Biodegradable copolymer and its preparation - Google Patents

Biodegradable copolymer and its preparation

Info

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
Application number
JP2688978A
Other languages
Japanese (ja)
Other versions
JPS5726688B2 (en
Inventor
Yutaka Tokiwa
Tomoo Suzuki
Yoshimasa Takahara
Tadanao Ando
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.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
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 Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP2688978A priority Critical patent/JPS54119595A/en
Publication of JPS54119595A publication Critical patent/JPS54119595A/en
Publication of JPS5726688B2 publication Critical patent/JPS5726688B2/ja
Granted legal-status Critical Current

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
JP2688978A 1978-03-09 1978-03-09 Biodegradable copolymer and its preparation Granted JPS54119595A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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