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:
Feb. 20, 2001
Filed:
Jun. 30, 1999
Applicant:
Inventors:
Yosuke Sasaki, Tokyo, JP;
Michinori Yanagi, Tokyo, JP;
Assignee:
Akebono Brake Industry Co. Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B32B 5/02 ; B32B 2/716 ;
U.S. Cl.
CPC ...
B32B 5/02 ; B32B 2/716 ;
Abstract
A friction material, including a fibrous reinforcement, a friction modifier, a lubricant and a binder, comprising a water-repellent fluoropolymer incorporated therein. The further incorporation of an alkaline metal salt makes it possible to render the matrix more hydrophilic and hence reduce creep noise. The foregoing fluoropolymer is one selected from the group consisting of ethylene tetrafluoride polymer, tetrafluoroethylene-hexafluoropropylene copolymer and polyvinylidene fluoride or a combination thereof.