Fibrous lining material comprising a primary layer having less fibrillated aramid fibers and synthetic graphite and a secondary layer comprising carbon particles
US5998307A · kind A · utility
31Cited by
6References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 30, 1996 |
| Grant date | Dec 7, 1999 |
| Priority date | — |
| Expiry date | Aug 30, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/699
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a fibrous base material comprising a primary layer of less fibrillated aramid fibers, synthetic graphite and at least one filler material, and a secondary layer of carbon particles on at least one surface of the fibrous base material for use in a non-asbestos friction material. In certain embodiments, the fibrous base material is impregnated with a phenolic or phenolic-based resin material, including, for example, a mixture of a phenolic resin and a silicone resin to form a friction material having good "break-in" and durability characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.