Substituted benzoylferrocene anionic photoinitiators
US6127445A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 1998 |
| Grant date | Oct 3, 2000 |
| Priority date | — |
| Expiry date | Nov 3, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S522/908
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to anionic photoinitiator compounds, compositions containing them, and methods of using them having the structure: ##STR1## wherein X and Y are independently selected from the group consisting of a direct single bond and --C(.dbd.O)--, wherein at least one of X and Y is --C(.dbd.O)--; R.sup.1 and R.sup.2 are independently selected from the group consisting of H and substituted phenyl, wherein both R.sup.1 and R.sup.2 are not H; and wherein neither --X--R.sup.1 nor --Y--R.sup.2 is --C(.dbd.O)H. The anionic photoinitiators have improved storage stability, without loss of photosensitivity, even when stored with polymerizable or crosslinkable monomer, oligomer, or crosslinkable polymer species.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.