Photoactivatable bases containing nitrogen
US6489374B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2001 |
| Grant date | Dec 3, 2002 |
| Priority date | — |
| Expiry date | Feb 16, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/029
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to &agr;-ammonium alkenes, iminium alkenes and amidinium alkenes in the form of their tetraaryl- or triaryl-alkylborate salts that can be converted photochemically into amines, imines or amidines, and to a process for the preparation thereof. The invention relates also to compositions polymerisable or crosslinkable under basic conditions comprising such &agr;-ammonium alkenes, iminium alkenes or amidinium alkenes in the form of their tetra- or tri-arylalkylborate salts, to a method of carrying out photochemically induced, base-catalysed reactions, and to the use of such compounds as photoinitiators for base-catalysed reactions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.