Polyurethane foaming composition comprising triorganosilylated p

Details Polyurethane foaming composition comprising triorganosilylated p Polyurethane foaming composition comprising triorganosilylated p

1980-10-10

1981-12-08

Cockeram, H. S.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521129, 521125, 521126, 521127, 521131, 521904, 556446, C08G 1814, C08G 1800, C07F 702

Patent

active

043048757

ABSTRACT:
A flexible, elastic, uniform polyurethane foam is cold foamed and set from a composition of matter comprising (i) a polyisocyanate, (ii) a polyether-polyol having a molecular weight ranging from 800 to 50,000 and at least 2.1 hydroxyl radicals per mol, of which hydroxyl radicals at least 35% are primary hydroxyl radicals, (iii) a stabilizing amount of an organosilicon stabilizer therefor, and (iv) a blowing agent; said organo silicon stabilizer being a triorganosilylated polypentaerythritol having the structural formula:

REFERENCES:
patent: 2288754 (1942-07-01), Story
patent: 3206415 (1965-09-01), Koepnick et al.
patent: 3381019 (1968-04-01), Morehouse
patent: 3935133 (1976-01-01), van Leeuwen
patent: 4016163 (1977-04-01), Kanner et al.
patent: 4067828 (1978-01-01), Ka nner et al.
Suchanec-Anal. Chem. 37, No. 11, Oct. 1965, pp. 1361-1365.
Published European Patent Application 761, Feb. 1979.

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