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Title:
METHOD FOR PRODUCING BIODEGRADABLE AROMATIC POLYESTER OF WHICH BIODEGRADABILITY IS CONTROLLED
Document Type and Number:
Japanese Patent JP2008308571
Kind Code:
A
Abstract:

To improve biodegradability of biodegradable aromatic polyester represented by a polyethylene terephthalate-adipate copolymer.

An ionization radiation is irradiated to the polyethylene terephthalate-adipate copolymer, and molecular structure is made to cause decomposition reaction prior to crosslinking reaction. More concretely, in vacuum, the ionization radiation is irradiated to the polyethylene terephthalate-adipate copolymer, and the molecular structure is made to cause decomposition reaction, and thus, the biodegradable aromatic polyester is produced. Alternatively, in the air, ray is irradiated to the polyethylene terephthalate-adipate copolymer, and the molecular structure is made to cause decomposition reaction, and thus, the biodegradable aromatic polyester is produced.


Inventors:
NAGASAWA NAOTANE
NAGAI DAISUKE
MITOMO HIROSHI
TAMADA MASAO
Application Number:
JP2007157099A
Publication Date:
December 25, 2008
Filing Date:
June 14, 2007
Export Citation:
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Assignee:
JAPAN ATOMIC ENERGY AGENCY
International Classes:
C08G63/91; C08L101/16
Domestic Patent References:
JPH05159A1993-01-08
JPH09324037A1997-12-16
JP2000103885A2000-04-11
JP2003034734A2003-02-07
Attorney, Agent or Firm:
Yukihiko Takada



 
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