Preparation of a copolymer polyahl using an addition polymerizable adduct of a polymeric monoahl and an ethylenically unsaturated coreactant
US4513124A · kind A · utility
12Cited by
12References
11Claims
0Family size
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Inventor
Key dates
| Filing date | Feb 14, 1983 |
| Grant date | Apr 23, 1985 |
| Priority date | — |
| Expiry date | Feb 14, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S525/92
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An adduct of a monoahl, e.g., a monohydroxyl polyalkylene oxide, and an active ethylenically unsaturated coreactant monomer, methacryloyl chloride, is usefully employed in the preparation of stable copolymer dispersions of the type used in the production of polyurethane foams and polyurethane elastomers. The copolymer dispersion is prepared by addition copolymerization of (1) the adduct with (2) ethylenically unsaturated monomers(s), e.g., styrene or mixture thereof with acrylonitrile, while (1) and (2) are dispersed or dissolved in an excess of an active hydrogen polyfunctional compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.