Integrally molded composites of silicone rubber
US4818829A · kind A · utility
16Cited by
3References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 9, 1987 |
| Grant date | Apr 4, 1989 |
| Priority date | — |
| Expiry date | Jul 9, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2229/058
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Novel composite products formed by bonding a flowable elastomer, such as silicone rubber, to a transparent or translucent silicone rubber preform are described. These products have utility in the field of electromechanical devices such as an illuminated switch or key or as a transparent rubber window permitting view of an underlying display device. The bond between the preformed elastomer and the flowable elastomeric material is improved by post-curing the preform for about 4 hours at about 200.degree. C. prior to contact of the flowable material with the preform. Methods of fabrication of the novel composites are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.