Modified acrylic polyyol carbonate polymer
US5658989A · kind A · utility
3Cited by
1References
9Claims
0Family size
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Key dates
| Filing date | Apr 12, 1996 |
| Grant date | Aug 19, 1997 |
| Priority date | — |
| Expiry date | Apr 12, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G64/305
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A hydroxy-terminated linear carbonate is produced by reacting a cyclic alkylene carbonate such as neopentyl glycol carbonate with a substance having at least one alcoholic hydroxyl group in the presence of a catalyst. Mono- or polyhydric alphatic alcohols, polycaprolactone polyols, hydroxyl group-containing acrylic monomers and polymers, and polyester polyols are modified by the reaction with the cyclic alkylene carbonate to have an enhanced reactivity and resistance to hydrolysis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.