高分子量脂肪族ポリエステル及びその製造方法

Title:

高分子量脂肪族ポリエステル及びその製造方法

Document Type and Number:

Japanese Patent JP4476808

Kind Code:

B2

Abstract:

Disclosed herein are a high-molecular weight aliphatic polyester, whose molecular weight has been highly increased by a chain-lengthening reaction of a ring-opening (co)polymer of at least one cyclic ester selected from the group consisting of glycolide and lactide with an oxazoline compound, and a production process thereof. The molecular weight of the high-molecular weight aliphatic polyester is highly increased to the extent that a rate of increase in molecular weight represented by a ratio (Mw₂/Mw₁) of a weight average molecular weight (Mw₂) of a ring-opening (co)polymer after the chain lengthening to a weight average molecular weight (Mw₁) of the ring-opening (co)polymer before the chain lengthening amounts to at least 1.10.

Inventors:

Kazuyuki Yamane
Ryo Kato
Toshihiko Ono

Application Number:

JP2004542843A

Publication Date:

June 09, 2010

Filing Date:

October 08, 2003

Export Citation:

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