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United States of America Patent

PATENT NO 11447612
APP PUB NO 20210301095A1
SERIAL NO

16315723

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
OJI HOLDINGS CORPORATION7-5 GINZA 4-CHOME CHUO-KU TOKYO 104-0061

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fushimi, Hayato Chiba, JP 22 107
Sakai, Koh Chiba, JP 9 15
Sunagawa, Hirokazu Tokyo, JP 18 142

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