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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.:

US 10259902 B1

PDFFull Text
Date of Patent:
Apr. 16, 2019

Filed:

Mar. 31, 2016

Resol phenolic resin for friction material, method for producing the same, adhesive for friction material, and wet friction plate

Applicants:

Sumitomo Bakelite Co., Ltd., Tokyo, JP;

Nsk-warner K.k., Tokyo, JP;

Inventors:

Hajime Mifuka, Fujieda, JP;

Tadashige Hirano, Fukuroi, JP;

Kenichi Iso, Fukuroi, JP;

Assignee:

SUMITOMO BAKELITE COMPANY LIMITED, Tokyo, JP;

Attorney:

Westerman, Hattori, Daniels & Adrian, LLP

Primary Examiner:

Liam J Heincer

Int. Cl.
CPC ...
B32B 7/00 (2006.01); B32B 7/12 (2006.01); C08G 8/24 (2006.01); B32B 15/00 (2006.01); B32B 15/04 (2006.01); B32B 27/00 (2006.01); B32B 27/06 (2006.01); B32B 27/28 (2006.01); F16D 69/02 (2006.01); F16D 69/04 (2006.01); C09J 161/06 (2006.01);
U.S. Cl.
CPC ...
C08G 8/24 (2013.01); B32B 7/00 (2013.01); B32B 7/12 (2013.01); B32B 15/00 (2013.01); B32B 15/04 (2013.01); B32B 27/00 (2013.01); B32B 27/06 (2013.01); B32B 27/28 (2013.01); C09J 161/06 (2013.01); F16D 69/025 (2013.01); F16D 69/04 (2013.01); B32B 2250/02 (2013.01); B32B 2250/26 (2013.01); B32B 2255/06 (2013.01); B32B 2255/26 (2013.01); B32B 2307/50 (2013.01); B32B 2307/538 (2013.01); B32B 2475/00 (2013.01); F16D 2069/0466 (2013.01);
Abstract

According to the present invention, there is provided a resol phenolic resin for a friction material wherein the resol phenolic resin has a structural unit A represented by Formula (1) and a structural unit B represented by Formula (2): wherein in Formula (1), m represents an integer of 1 or more; in a case where m is 1, R represents a methylol group; and in a case where m is 2 or more, R's independently represent a hydrogen atom or a methylol group and at least one R is a methylol group; and wherein in Formula (2), n represents an integer of 1 or more; in a case where n is 1, R represents a methylol group; and in a case where n is 2 or more, R's independently represent a hydrogen atom or a methylol group and at least one R is a methylol group.

Find Patent Forward Citations

Mifuka, Hajime. (2019). Resol phenolic resin for friction material, method for producing the same, adhesive for friction material, and wet friction plate (U.S. Patent No. 10259902). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10259902

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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