s-Triazine-radical-containing polyether polyol mixtures, process

Details s-Triazine-radical-containing polyether polyol mixtures, process s-Triazine-radical-containing polyether polyol mixtures, process

1985-03-25

1987-04-07

Cockeram, Herbert S.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

252182, 521167, 521902, 528 73, C08G 1814, C08G 1850

Patent

active

046562010

ABSTRACT:
The invention relates to s-triazine radical-containing polyether polyol mixtures having functionalities of from 2 to 6 and hydroxyl numbers of from 210 to 640, prepared by the oxyalkylation of a mixture of one or more polyamino-1,3,5-triazines, preferably melamine, and an alkanol having a hydroxyl functionality of from 2 to 6 and having 2 to 18 carbon atoms, water, or their mixtures, in the absence of catalysts and conventional inert polar solvents. The resulting polyether polyol mixtures are suitable for the preparation of rigid polyurethane, polyisocyanurate, and urethane group-containing polyisocyanuate foams produced by means of the polyisocyanate polyaddition process.

REFERENCES:
patent: 3328321 (1967-06-01), Wismer et al.
patent: 3438986 (1969-04-01), Kaiser et al.
patent: 3812122 (1974-05-01), Lengsfeld

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