UV curable resin compositions containing urethanes of hydroxybenzotriazoles or urethanes of hydroxy benzophenones
US4179548A · kind A · utility
25Cited by
3References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 14, 1977 |
| Grant date | Dec 18, 1979 |
| Priority date | — |
| Expiry date | Sep 14, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S522/907
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Urethanes of hydroxybenzotriazoles and hydroxybenzophenones which can be chemically modified upon heating have been found useful in imparting weather resistance to plastic substrates when applied as part of a UV curable resin which can be subsequently heated after cure. UV curable resins containing such urethanes and the use of such resins to treat thermoplastic substrates are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.