Rubber-coated gasket material
US5004650A · kind A · utility
13Cited by
1References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 11, 1989 |
| Grant date | Apr 2, 1991 |
| Priority date | — |
| Expiry date | May 11, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31699
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A rubber-coated gasket material has a rubber layer formed on one or both sides of a metal sheet. The rubber layer has incorporated therein a nitrile rubber containing a carboxyl group in such an amount that the proportion of a carboxylic monomer as calculated in term as of a monomer content in the rubber component is in the range of 2-15 wt. %. The rubber layer is formed in a thickness of 10-300 .mu.m per side, and bonded to a metal sheet with a primer layer based on a phenolic resin being interposed between the rubber layer and the metal sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.