Phosphine oxide photoinitiator systems and curable compositions with low color
US6777459B2 · kind B2 · utility
20Cited by
15References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2002 |
| Grant date | Aug 17, 2004 |
| Priority date | — |
| Expiry date | Oct 3, 2022 |
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.