Ultraviolet curing conformal coating with dual shadow cure
US5008301A · kind A · utility
12Cited by
4References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 21, 1989 |
| Grant date | Apr 16, 1991 |
| Priority date | — |
| Expiry date | Feb 21, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D183/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Compositions containing an acrylamide functional polydiorganosiloxane, a polydiorganosiloxane having methacryloxyalkyl functionality and silicon-bonded alkoxy functionality, a photoinitiator, and an organic titanate can be improved by using organic peroxides. The improvements are observed in shelf life and pot life of the uncurd composition, and the odor of the cured product. The resulting composition has ternary cure mechanisms with two of these mechanisms being available as shadow cure mechanisms, i.e. cures in areas not exposed to ultraviolet radiation by either exposure to atmospheric moisture or by heating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.