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:
Apr. 26, 1994
Filed:
Jun. 28, 1991
Masashi Nishiyama, Kannonji, JP;
Jun Hosokawa, Takamatsu, JP;
Kazutoshi Yoshihara, Takamatsu, JP;
Takamasa Kubo, Takamatsu, JP;
Kunio Kanaoka, Sakaide, JP;
Kazuo Kondo, Marugame, JP;
Satoshi Maruyama, Kagawa, JP;
Kenji Tateishi, Kagawa, JP;
Akihiko Ueda, Marugame, JP;
Director-General of Agency of Industrial Science and Technology, both of, JP;
Okura Industrial Co., Ltd., both of, JP;
Abstract
A biodegradable film or the like shaped article is formed from a composition including 100 parts by weight of cellulose fibers having a length of 3 mm or less and a diameter of 50 .mu.m or less, 10-600 parts by weight of a thermoplastic resin and 2-100 parts by weight of chitosan. A mixture containing (a) an aqueous solution of an acid salt of chitosan, (b) an aqueous dispersion or solution of a thermoplastic resin and (c) fine cellulose fibers is dried and shaped to obtain such a biodegradable shaped article.