Radiation curable acrylated polyurethane
US4131602A · kind A · utility
53Cited by
8References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1977 |
| Grant date | Dec 26, 1978 |
| Priority date | — |
| Expiry date | Sep 29, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/4009
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Radiation curable acrylated polyurethane is porduced by (a) producing an isocyanate-terminated intermediate by coreacting an organic diisocyanate with a combination of organic tri/tetraol and organic diol, said combination being chosen from polyester tri/tetraol-polyether diol and polyether tri/tetraol-polyester diol combinations; (b) reacting the isocyanate-terminated intermediate with an hydroxyacrylate such as 2-hydroxyethyl acrylate. Unexpectedly, the oligomer has desirably low viscosity, yet cures upon exposure to radiation to a coating having good physical properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.