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:
Aug. 03, 2021
Filed:
Sep. 25, 2017
Applicant:
Yamauchi Corporation, Osaka, JP;
Inventors:
Takamitsu Ozeki, Osaka, JP;
Akira Yoshida, Osaka, JP;
Assignee:
YAMAUCHI CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 5/26 (2006.01); D04H 1/4342 (2012.01); D04H 1/4374 (2012.01); D04H 1/498 (2012.01); B30B 15/06 (2006.01); B32B 5/06 (2006.01); B32B 5/02 (2006.01); B32B 7/02 (2019.01); B29C 43/20 (2006.01); B29C 43/36 (2006.01);
U.S. Cl.
CPC ...
B32B 5/26 (2013.01); B30B 15/061 (2013.01); B32B 5/022 (2013.01); B32B 5/06 (2013.01); B32B 7/02 (2013.01); D04H 1/4342 (2013.01); D04H 1/4374 (2013.01); D04H 1/498 (2013.01); B29C 43/20 (2013.01); B29C 2043/3657 (2013.01); B32B 2250/03 (2013.01); B32B 2250/20 (2013.01); B32B 2262/0269 (2013.01); B32B 2307/306 (2013.01); B32B 2307/718 (2013.01); B32B 2457/08 (2013.01); B32B 2457/202 (2013.01); Y10T 428/24942 (2015.01);
Abstract
A hot press cushioning material includes: a first nonwoven fabric forming an inner layer; and second nonwoven fabrics placed on both surfaces of the first nonwoven fabric and forming outer layers. Copolymerized para-aramid fibers having a basis weight of 80 to 400 g/mare used as a material of the second nonwoven fabrics. Fibers that are more rigid than the copolymerized para-aramid fibers are used as a material of the first nonwoven fabric. Each of the first nonwoven fabric and the second nonwoven fabrics has a heat resistant temperature of 270° C. or more.