Photopolymerizable compositions containing an oxonol dye
US8052829B2 · kind B2 · utility
0Cited by
22References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 26, 2007 |
| Grant date | Nov 8, 2011 |
| Priority date | — |
| Expiry date | Jul 9, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2/50
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to photopolymerizable compositions containing an oxonol dye, which compositions cure by exposure to ultraviolet and/or visible radiation and whose visible color is substantially reduced during exposure. More particularly, the invention pertains to photopolymerizable compositions comprising a pyridin-2,6-dione oxonol dye in an admixture of a polymerizable component and a photopolymerization initiator. Such compositions find use as adhesives, coatings, and the like. The disappearance of the visible color of the oxonol dye acts as an indicator of full cure of a photopolymerizable composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.