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, 2022
Filed:
Jul. 07, 2017
Applicant:
Oji Holdings Corporation, Tokyo, JP;
Inventors:
Assignee:
OJI HOLDINGS CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 5/18 (2006.01); C08J 5/04 (2006.01); C08L 1/02 (2006.01); C08L 1/16 (2006.01); C08L 29/04 (2006.01);
U.S. Cl.
CPC ...
C08J 5/18 (2013.01); C08J 5/045 (2013.01); C08L 1/02 (2013.01); C08L 1/16 (2013.01); C08L 29/04 (2013.01); C08L 2205/16 (2013.01); C08L 2312/00 (2013.01);
Abstract
The purpose of the present invention is to provide a composite sheet in which the dimension stability when it is tensed is high and the appearance deterioration and the yellowness change are suppressed. The present invention relates to a sheet comprising; cellulose fibers having a fiber width of 1000 nm or less and having a phosphoric acid group or a phosphoric acid group-derived substituent; and a polyvinyl alcohol-based resin, wherein the sheet has a tensile elastic modulus of 3.4 GPa or more.