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:
Jul. 15, 2025

Filed:

Jul. 08, 2021
Applicant:

Toray Industries, Inc., Tokyo, JP;

Inventors:

Tomoko Takano, Otsu, JP;

Hideaki Karasaki, Otsu, JP;

Taira Omori, Nagoya, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D21H 21/34 (2006.01); D21H 17/00 (2006.01); D21H 17/10 (2006.01); D21H 17/36 (2006.01); D21H 17/37 (2006.01); D21H 17/67 (2006.01); D21H 23/04 (2006.01); D21H 23/24 (2006.01); D21H 27/00 (2006.01); G01R 29/08 (2006.01); H01Q 17/00 (2006.01);
U.S. Cl.
CPC ...
D21H 21/34 (2013.01); D21H 17/10 (2013.01); D21H 17/36 (2013.01); D21H 17/37 (2013.01); D21H 17/675 (2013.01); D21H 17/74 (2013.01); D21H 23/04 (2013.01); D21H 23/24 (2013.01); D21H 27/00 (2013.01); H01Q 17/00 (2013.01); G01R 29/0821 (2013.01);
Abstract

An object of the present invention is to provide, in particular, flame-resistant paper for a radio wave absorber member, the flame-resistant paper being unlikely to break during the production process and having favorable producibility in addition to being suitable for a radio wave absorber member and having high flame resistance. The flame-resistant paper for a radio wave absorber member according to the present invention contains pulp, aluminum hydroxide, guanidine phosphate, a binder, and a conductive substance, in which the content of the pulp is 5 to 20 mass %, the content of the aluminum hydroxide is 40 to 70 mass %, the content of the guanidine phosphate is 10 to 20 mass %, the content of the binder is 5 to 10 mass %, and the content of the conductive substance is 0.1 to 12 mass %.


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