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:
Jul. 24, 2012
Filed:
Nov. 26, 2008
Shou Kurihara, Tokyo, JP;
Hiroshi Idei, Tokyo, JP;
Yoshihiro Aoyagi, Tokyo, JP;
Motoki Kuroe, Tokyo, JP;
Shou Kurihara, Tokyo, JP;
Hiroshi Idei, Tokyo, JP;
Yoshihiro Aoyagi, Tokyo, JP;
Motoki Kuroe, Tokyo, JP;
Akebono Brake Industry Co., Ltd., Chuo-ku, Tokyo, JP;
Abstract
The present invention provides a binder resin for a friction material, which enables high-temperature short-time thermoforming and can omit a post-curing step and suppress the generation of a pyrolysis component at molding; a friction material using the binder resin; and a binder resin composition for a friction material, which is enhanced in the heat resistance and can suppress a rapid increase of the wear amount, and in addition to these properties, which has good dynamic property and enables high-temperature short-time thermoforming. The present invention relates to a binder resin for a friction material which comprises (A) one kind or two or more kinds of polybenzoxazine resins selected from a condensation reaction product of an aminophenol compound with formaldehydes and a condensation reaction product of a bifunctional phenol compound and a bifunctional amine compound with formaldehydes; a binder resin composition for a friction material which comprises: the component (A); and further (B) one kind or two or more kinds of particles selected from an inorganic particle and an inorganic-organic composite particle, and a friction material obtained by the binder resin or binder resin composition.