Modified polyols

Details Modified polyols Modified polyols

1977-07-06

1978-10-17

Jacobs, Lewis T.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

560 26, 521167, C08J 900

Patent

active

041208340

ABSTRACT:
The present invention relates to modified polyols, and more particularly to polyols modified with polyisocyanates that can be employed, among other things, as components for formulations for polyurethanes or polyurethanes-isocyanurates.
More particularly, the modified polyols of this invention consist of the reaction product of diols having an equivalent weight ranging from 30 to 150, with polyisocyanates having an equivalent weight ranging from 50 to 200, characterized in that said modified polyols exhibit a diol/isocyanate weight ratio comprised between 10 and 1, preferably between 5 and 1.6, and a OH/NCO equivalent ratio comprised between 3 and 50, preferably between 4 and 10.

REFERENCES:
patent: 2948691 (1960-08-01), Windemuth et al.
patent: 3192186 (1965-06-01), Muller et al.
patent: 3905925 (1975-09-01), Vervloet

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