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:
Oct. 13, 1992
Filed:
Aug. 13, 1991
Applicant:
Inventors:
Masashi Nishiyama, Kannonji, JP;
Jun Hosokawa, Takamatsu, JP;
Kazutoshi Yoshihara, Takamatsu, JP;
Takamasa Kubo, Takamatsu, JP;
Satoshi Maruyama, Kagawa, JP;
Akihiko Ueda, Marugame, JP;
Kunio Kanaoka, Sakaide, JP;
Kenji Tateishi, Kagawa, JP;
Kazuo Kondo, Marugame, JP;
Assignees:
Director-General of Agency of Industrial Science and Technology, both of, JP;
Okura Industrial Co., Ltd., both of, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; B29C / ;
U.S. Cl.
CPC ...
264102 ; 26421111 ; 26421112 ; 264212 ; 524 13 ; 524 47 ;
Abstract
A biodegradable sheet is produced from an aqueous dispersion containing finely cut cellulose fibers and chitosan. The dispersion is maintained at a temperature T.sub.1 .degree.C. which is within the following range: