Polymer-modified polyols

Details Polymer-modified polyols Polymer-modified polyols

1982-07-16

1984-03-20

Kight, III, John

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From reactant having at least one -n=c=x group as well as...

528 77, 528 85, 528 78, 521137, 521163, 252182, C08G 1838, C08G 1848, C08G 1852

Patent

active

044382529

ABSTRACT:
A polymer-modified polyol comprises a dispersion in a first polyol which has a molecular weight of at least 1000, an average functionality of more than 2, and a Hydroxyl Number of less than 150, of the reaction product of a polyisocyanate and a second polyol which is either (a) a polyethylene glycol having a molecular weight of up to 600 or (b) a polyol, which is not a polyethylene glycol, and which has a molecular weight of less than 250 and is free from nitrogen atoms.
A method of forming the polymer-modified polyol, its use in the manufacture of polyurethane products and the polyurethane products so obtained, are included.
The dispersions are particularly useful for preparing highly resilient flexible foams.

REFERENCES:
patent: 3383351 (1974-02-01), Stamberger
patent: 4332716 (1982-06-01), Shah
Journ. of Cellular Plastics 17, 1, Jan./Feb. 1981, pp. 43-49.

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