Ultraviolet radiation-curable silicone release compositions with epoxy and/or acrylic functionality
US4640967A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 18, 1985 |
| Grant date | Feb 3, 1987 |
| Priority date | — |
| Expiry date | Dec 18, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D183/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Epoxy- and/or acrylic-functional polysiloxanes are disclosed which, when combined with onium salt photoinitiating catalysts or free-radical photoinitiating catalysts or both, form ultraviolet radiation-curable release coating compositions which render surfaces non-adherent to other surfaces which would normally adhere thereto. The compositions will cure to such an adhesive state upon brief exposure to ultraviolet radiation. Cure and substrate adhesion may be enhanced by the addition of epoxy monomers where onium salt photocatalysts are included. Preparation of the polymers, coating compositions, catalysts and catalyst blends are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.