Method for making certain halonium salt photoinitiators
US3981897A · kind A · utility
57Cited by
1References
7Claims
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Key dates
| Filing date | May 2, 1975 |
| Grant date | Sep 21, 1976 |
| Priority date | — |
| Expiry date | May 2, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/029
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method is provided for making certain diarylhalonium salts containing Group Va metal hexafluorides useful as photoinitiators, such as diphenyliodonium hexafluoroarsonate. An intermediate diarylhalonium bisulfate is prepared. Reaction is thereafter effected between the diarylhalonium bisulfate and the source of a counterion, such as AsF.sub.6 .sup.- , in the form of the corresponding acid or salt. The halonium salt photoinitiators can be used to make UV curable compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.