Patent · US Expired

Addition polymerizable adducts for nonaqueous dispersions

US4640935A · kind A · utility

11Cited by
6References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 9, 1985
Grant dateFeb 3, 1987
Priority date—
Expiry dateMay 9, 2005

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08G65/336
  • 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.