Silicone pressure-sensitive adhesive laminates and silicone release layers therefore
US4684557A · kind A · utility
41Cited by
7References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 27, 1981 |
| Grant date | Aug 4, 1987 |
| Priority date | — |
| Expiry date | Aug 27, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31663
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A silicone pressure-sensitive adhesive release laminate having a support coated on at least one side with a silicone release layer, and over the release layer, a pressure-sensitive silicone adhesive. The release force required to separate the adhesive from the release layer is less than about 200 grams per inch, and preferably less than 100 grams. The release layer is a silicone release polymer having a high degree of cross-linking formed from at least one prepolymer having a viscosity below about 1000 centipoises at 25.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.