Polymer backed silicone rubber molds and means for forming bonds with polyorganosiloxanes
US4070224A · kind A · utility
15Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 19, 1976 |
| Grant date | Jan 24, 1978 |
| Priority date | — |
| Expiry date | Jul 19, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31663
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A mold has a silicone rubber body defining a molding cavity with a polymeric backer forming a support for the body integrally joined to the body by an adhesive bond. A cured silicone rubber or silicone resin is bonded to anyone of a variety of polymeric substances by applying an activating primer such as trimethylbenzyl ammonium hydroxide and subsequently or simultaneously applying a bridging agent which bonds to the activated silicone surface and also provides bonding sites for later attachment to polymers containing isocyanates, epoxides and/or other reactive groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.