Polymer/polyol compositions made from preformed polymer/polyols,

Details Polymer/polyol compositions made from preformed polymer/polyols, Polymer/polyol compositions made from preformed polymer/polyols,

1978-03-29

1979-04-10

Seccuro, Carman J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260 334R, 260 334UR, 260844, 260845, 260848, 260874, 260879, 260881, 260885, 260886, 521137, C08L 7504, C08L 3320

Patent

active

041488407

ABSTRACT:
Novel improved polymer/polyol composition made by polymerizing one or more ethylenically unsaturated monomers in situ in a blend of a polyol having a number average molecular weight of at least about 76 and a preformed polymer/polyol prepared by the in situ polymerization of one or more polymerizable ethylenically unsaturated monomers in a polyol, said preformed polymer/polyl having a viscosity of not more than 40,000 cps at 25.degree. C., to form a highly stable dispersion of small polymer particles in said polyols, wherein said preformed polymer/polyol and said improved polymer/polyol composition are more stable than the polymer/polyol having the same chemical composition as said improved polymer/polyol composition but made in the absence of said preformed polymer/polyol. The novel compositions are highly useful in the production of polyurethane products.

REFERENCES:
patent: 3085983 (1963-04-01), Hardy
patent: 3304273 (1967-02-01), Stamberger
patent: 3383351 (1968-05-01), Stamberger
patent: 3655553 (1972-04-01), Dewald
patent: 3823201 (1974-07-01), Pizzini et al.
patent: 3850861 (1974-11-01), Fabris et al.
patent: 3953393 (1976-04-01), Ramlow et al.
patent: 3966521 (1976-06-01), Patton et al.
patent: 4014846 (1977-03-01), Ramlow et al.

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