Prepolymers for photocurable compositions
US4243793A · kind A · utility
8Cited by
6References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 28, 1978 |
| Grant date | Jan 6, 1981 |
| Priority date | — |
| Expiry date | Jul 28, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/0275
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A prepolymer for use in preparing photocurable compositions is prepared by reacting an aliphatic diisocyanate having terminal isocyano groups and at least one alkyl side chain with a hydroxy-, mercapto- or amino-containing olefinically unsaturated compound. This prepolymer is compounded with a photosensitizer and, optionally, a polymercaptan to prepare photocurable compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.