Phosphine oxide photoinitiator systems and curable compositions with low color
US6486226B2 · kind B2 · utility
36Cited by
11References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2000 |
| Grant date | Nov 26, 2002 |
| Priority date | — |
| Expiry date | Jan 25, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F222/1065
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a novel photoinitiator system comprising one or more acylphosphine oxide photoinitiators and one or more lightfast red, blue or violet organic pigments. Low yellow color formation results upon curing ethylenically unsaturated compounds with the new photoinitiator system. Particular applications include clear and white coatings, screen inks, gel coats, powder coatings, composites, adhesives and lenses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.