Photocurable composition and curing process therefor
US6110987A · kind A · utility
18Cited by
13References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 11, 1997 |
| Grant date | Aug 29, 2000 |
| Priority date | — |
| Expiry date | Jul 11, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/101
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A photocurable composition comprising an ultraviolet radical polymerization initiator, a cationic dye with absorptions in the visible light region, a quaternary boron salt and optionally a polymerization accelerator, is irradiated with ultraviolet light and visible light either simultaneously or separately, to achieve adequate hardening in air of both the surface and the interior of the cured product, and to provide a cured product with an excellent appearance and without production of coloring substances derived from the polymerization initiator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.