Oxime ester photoinitiators
US8911921B2 · kind B2 · utility
3Cited by
7References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2008 |
| Grant date | Dec 16, 2014 |
| Priority date | — |
| Expiry date | Apr 29, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/30
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Compounds of formula (I), (II), and (III), wherein R1, R2, R′2 and R′″2 for example are C1-C20alkyl, provided that at least one of R1, R2, R′2 and R′″2 carries a specified substituent; R3, R4, and R5 for example independently of one another are hydrogen or a defined substituent provided that at least one of R3, R4 or R5 is other than hydrogen or C1-C20alkyl; R6, R7, R8, R′7, RV, R′8, R″6, R″7, R′″6 and R′″7 for example independently of one another have one of the meanings as given for R3, R4, and R5; and R9 for example is C1-C20alkyl; exhibit an unexpectedly good performance in photopolymerization reactions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.