Fibrous lining material comprising a primary layer having less fibrillated aramid fibers, carbon fibers, carbon particles and a secondary layer comprising carbon particles
US6001750A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 24, 1999 |
| Grant date | Dec 14, 1999 |
| Priority date | — |
| Expiry date | Mar 24, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/699
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention relates to a fibrous base material comprising a primary layer of less fibrillated aramid fibers, carbon particles, carbon fibers, phenolic novoloid fibers, and at least one filler material, optionally cotton fibers, 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 an extended high speed durability life, good "break-in" characteristics, good heat dissipation characteristics, and good noise or squawk resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.