Method for photopolymerization of pigmented epoxide compositions
US4107353A · kind A · utility
11Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 4, 1976 |
| Grant date | Aug 15, 1978 |
| Priority date | — |
| Expiry date | Mar 4, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31529
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Highly pigmented liquid epoxide coating compositions containing one or more liquid epoxides, up to 60% by weight of pigment, one or more carboxylic acid anhydrides and specified diazonium salts of Lewis acids are converted to solid materials with substantially no weight loss following a relatively short exposure to ultraviolet radiation. The heretofore unattainable objective of a light-curable, substantially solventless coating composition containing sufficient pigment to obtain acceptable levels of hiding power is achieved by the presence of the carboxylic acid anhydride.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.