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:
Sep. 20, 2005
Filed:
Jan. 08, 2004
Applicants:
Soji Tanioka, Tokyo, JP;
Sakae Obara, Tokyo, JP;
Kazuhisa Hayakawa, Niigata-ken, JP;
Inventors:
Assignee:
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B023/00 ;
U.S. Cl.
CPC ...
Abstract
In a paper/film composite structure, the film is made of a low substituted cellulose ether having a molar degree of substitution with alkyl and/or hydroxyalkyl groups in the range of 0.05 to 1.3. The paper/film composite structure can be delivered to the waste paper recycling process without previously removing the film portion. The strength of film is increased without adding to the manufacturing cost. The paper/film composite structure is inexpensive and eliminates the risk of film rupture during the working, transporting and use stages.