Low odour oligomeric photoinitiator and method of making the same
US8022243B1 · kind B1 · utility
1Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 24, 2010 |
| Grant date | Sep 20, 2011 |
| Priority date | — |
| Expiry date | May 24, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C323/32
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Disclosed herein are a class of low odor oligomeric photoinitiators produced from the poly-condensation of dimethyl dicarboxylates and diols of a photo-active moiety. The disclosed oligomeric photoinitiators exhibited comparable photo-curing speed and much lower odor and extractability to its analogue of small molecular weight photoinitiators. Also disclosed are the preparation methods of the photoinitiators, and their applications in photopolymerizable compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.