Urethane acrylate compositions
US4507458A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 1984 |
| Grant date | Mar 26, 1985 |
| Priority date | — |
| Expiry date | Mar 27, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31551
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A urethane acrylate resin obtained by reacting a polyisocyanate with a polyester polyol having a molecular weight of 500 to 3,000, a low-molecular-weight polyol having a molecular weight of 60 to 400 and a hydroxyalkyl acrylate containing at least 70 mole % of a monohydroxyalkyl acrylate at an NCO/OH equivalent ratio in the range of 0.7 to 1.20. The composition comprising the above urethane acrylate resin affords crosslinked products having extremely excellent, tough physical properties, and can therefore be advantageously employed, for example, for base coatings for paper and polyethylene films prior to vacuum metallizing, protective coatings after vacuum metallizing, covering materials for electromagnetic tapes and floppy discs, vehicles for printing ink, adhesives, etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.