Invention Grant
- Patent Title: Friction material
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Application No.: US16427951Application Date: 2019-05-31
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Publication No.: US10995810B2Publication Date: 2021-05-04
- Inventor: Deanna L. Miller Higgins , Feng Dong , Robert Lam
- Applicant: BorgWarner Inc.
- Applicant Address: US MI Auburn Hills
- Assignee: BorgWarner Inc.
- Current Assignee: BorgWarner Inc.
- Current Assignee Address: US MI Auburn Hills
- Agency: Howard & Howard Attorneys PLLC
- Main IPC: F16D69/02
- IPC: F16D69/02 ; F16D13/64 ; B32B27/42 ; B32B5/30 ; B32B5/24 ; F16D69/00

Abstract:
A friction material has a first outermost surface and a second outermost surface spaced apart from the first outermost surface. The friction material includes a base which forms at least a portion of the first outermost surface. The base includes fibers present in an amount of from 20 to 80 weight percent, a filler present in an amount of from 20 to 80 weight percent, and a deposit which forms at least a portion of the second outermost surface and includes a friction adjusting agent. The friction material further includes a resin disposed throughout the friction material. The deposit is disposed in the friction material in a gradated pattern. At least a portion of the deposit is exposed to the environment and the second outermost surface has a surface roughness of from 2 to 11 micrometers as determined by non-contact laser measurement according to ISO 25178.
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