Asbestos-free friction material
US4373038A · kind A · utility
45Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 1, 1981 |
| Grant date | Feb 8, 1983 |
| Priority date | — |
| Expiry date | Oct 1, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/213
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An asbestos-free friction material useful for brake linings, clutches, etc. comprising 5 to 25% by weight of a hardenable binder or binder mixture, 1 to 70% by weight of a reinforcing fibrous material and conventional additives, the said reinforcing material consisting essentially of 2.5 to 12% by weight of aramide fibers, 6 to 25% by weight of mineral fibers and 16 to 36% by weight of steel fibers and optionally 5 to 20% by weight of powdered mica.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.