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.

Date of Patent:
Jan. 26, 2021

Filed:

Aug. 05, 2016
Applicant:

Oji Holdings Corporation, Tokyo, JP;

Inventors:

Go Banzashi, Tokyo, JP;

Koh Sakai, Tokyo, JP;

Yuichi Noguchi, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 5/18 (2006.01); D21H 11/18 (2006.01); D01F 1/10 (2006.01); D01F 2/00 (2006.01); B32B 7/02 (2019.01); B32B 5/02 (2006.01); D21H 25/02 (2006.01); D21H 11/20 (2006.01); D21H 17/64 (2006.01); C08B 15/02 (2006.01); C08L 1/04 (2006.01); D21H 21/20 (2006.01); C08L 1/02 (2006.01); D21H 17/66 (2006.01); C08B 5/00 (2006.01); C08L 1/16 (2006.01); B32B 5/26 (2006.01); D01F 2/24 (2006.01);
U.S. Cl.
CPC ...
C08J 5/18 (2013.01); B32B 5/02 (2013.01); B32B 5/26 (2013.01); B32B 7/02 (2013.01); C08B 5/00 (2013.01); C08B 15/02 (2013.01); C08L 1/02 (2013.01); C08L 1/04 (2013.01); C08L 1/16 (2013.01); D01F 1/10 (2013.01); D01F 2/00 (2013.01); D01F 2/24 (2013.01); D21H 11/18 (2013.01); D21H 11/20 (2013.01); D21H 17/64 (2013.01); D21H 17/66 (2013.01); D21H 21/20 (2013.01); D21H 25/02 (2013.01); C08J 2301/10 (2013.01); C08J 2301/16 (2013.01); D10B 2201/20 (2013.01);
Abstract

An object of the present invention is to improve the strength of a sheet containing substituent-introduced ultrafine fiber under high-humidity conditions while maintaining its high transparency. The sheet of the present invention comprises ultrafine fiber having an ionic substituent, and a divalent or higher metal, and has a haze of 10.0% or less.


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