Low temperature process for the preparation of graft copolymer d

Details Low temperature process for the preparation of graft copolymer d Low temperature process for the preparation of graft copolymer d

1974-01-07

1976-04-27

Lieberman, Allan

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 318HR, 260 318AN, 260 332R, 260 334R, 260 334UR, 260 342, 260 75NA, 260 775CR, 260859R, 260859PV, 260861, 260865, 260869, 260870, 260875, 260881, 260884, 260886, C08K 506, C08K 510, C08L 5108, C08L 6706

Patent

active

039533930

ABSTRACT:
Graft copolymer dispersions of improved viscosity and superior particle size distribution are prepared by the in situ polymerization of vinyl monomers in unsaturation-containing polyols in the presence of a free-radical catalyst and certain chain transferring agents at temperatures below 100.degree. C. The dispersions are low viscous liquids which may be advantageously employed in the preparation of polyurethanes.

REFERENCES:
patent: 3095388 (1963-06-01), Osmond et al.
patent: 3257340 (1966-06-01), Osmond
patent: 3383351 (1968-05-01), Stamberger
patent: 3607821 (1971-09-01), Clarke et al.
patent: 3652639 (1972-03-01), Pizzini et al.
patent: 3823201 (1974-07-01), Pizzini et al.
Vollmert, Polymer Chemistry, 1973, pp. 65-69.

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