Acid catalyzed silicone release layers
US5139815A · kind A · utility
7Cited by
14References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 13, 1990 |
| Grant date | Aug 18, 1992 |
| Priority date | — |
| Expiry date | Aug 13, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J2483/005
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A release sheet for adhesive products is provided wherein an acidic material such as an acidic polymer is disposed between a substrate layer and an acid catalyzed silicone release layer. The acid catalyzed silicone release layer is preferably a photocationic curable cycloaliphatic epoxy functional poly-dimethyl-siloxane. Provision of the acidic material between the silicone release layer and the substrate prevents neutralization of acids formed during cure of the silicone layer. Thus, faster cure times can be achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.