Ultraviolet curable aqueous coatings
US4100047A · kind A · utility
72Cited by
5References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 12, 1976 |
| Grant date | Jul 11, 1978 |
| Priority date | — |
| Expiry date | Oct 12, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31935
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Ultraviolet curable aqueous coating solutions are provided in which an hydroxy functional ethylenically unsaturated material, such as hydroxy ethyl acrylate or a polyether or polyester thereof, is dissolved in water with the aid of an amine photoinitiator and a photosensitizer is incorporated in the composition, preferably by reacting the hydroxy functionality in the ethylenically unsaturated material with a tetracarboxylic acid dianhydride including a proportion of benzophenone tetracarboxylic dianhydride which provides the needed ultraviolet photosensitizer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.