Friction material comprising powdered phenolic resin and method of making same
US5453317A · kind A · utility
18Cited by
22References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 31, 1993 |
| Grant date | Sep 26, 1995 |
| Priority date | — |
| Expiry date | Aug 31, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/699
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a non-asbestos friction material comprising a phenolic or phenolic-modified resin (and in certain embodiments, silicon nitride particles) incorporated into a fibrous base material which is then impregnated with a silicone resin. The friction material is prepared by mixing the phenolic or phenolic-modified resin (and, in certain embodiments, silicon nitride particles) into an aqueous paper formulation, forming a porous fibrous base material, impregnating the fibrous base material with a silicone resin, and heating the impregnated material to cure the phenolic resin and the silicone resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.