The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 20, 2010
Filed:
Jul. 17, 2001
Shinichi Kitamura, Kyoto, JP;
Nobuo Shiraishi, Kyoto, JP;
Mariko Yoshioka, Kyoto, JP;
Kenichi Kudo, Nara, JP;
Shigetaka Okada, Osaka, JP;
Takeshi Takaha, Osaka, JP;
Kazutoshi Fujii, Osaka, JP;
Yoshinobu Terada, Osaka, JP;
Shinichi Kitamura, Kyoto, JP;
Nobuo Shiraishi, Kyoto, JP;
Mariko Yoshioka, Kyoto, JP;
Kenichi Kudo, Nara, JP;
Shigetaka Okada, Osaka, JP;
Takeshi Takaha, Osaka, JP;
Kazutoshi Fujii, Osaka, JP;
Yoshinobu Terada, Osaka, JP;
Ezaki Glico Co., Ltd., Osaka, JP;
Sanwa Kosan Kabushiki Kaisha, Nara, JP;
Abstract
The present invention provides a biodegradable article formed from enzyme-synthesized amylose using phosphorylase, wherein the enzyme-synthesized amylose is composed of glucose monomers exclusively bonded by α-1,4-glucosidic likage and has a weight average molecular weight of not less than 100 kDa, preferable not less than 600 kDa. The enzyme-synthesized amylose employed in the present invention has a molecular weight distribution (Mw/Mn) of not more than 1.25 and can be chemically modified if desired. The biodegradable article of the present invention can be produced by (a) the enzyme-synthesized amylose and/or its modified one, or a combination of the amylose (a) and another polymer material (b).