Addition polymerizable adducts for nonaqueous dispersions
US4588830A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1982 |
| Grant date | May 13, 1986 |
| Priority date | — |
| Expiry date | Dec 9, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/635
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An adduct of a heteroatomic monomer, e.g., gamma-methacryloxypropyl trimethoxysilane and a monoahl, e.g., a monohydroxyl polyalkylene oxide or a polyahl, e.g., a polypropylene glycol, 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 monomer(s), e.g., styrene or mixture thereof with acrylonitrile, while (1) and (2) are dispersed or dissolved in an excess of a polyahl, i.e., an active hydrogen polyfunctional compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.