Flame retardant, self-extinguishing polyurethanes and polyuretha

Details Flame retardant, self-extinguishing polyurethanes and polyuretha Flame retardant, self-extinguishing polyurethanes and polyuretha

1984-12-12

1986-04-29

Lovering, Richard D.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

252609, 260DIG24, 428921, 528 73, C08G 1814, C08G 1828, C08G 1877

Patent

active

045858063

ABSTRACT:
A reactive fire retardant mixture useful in the preparation of polyurethane foams. The mixture contains a halogenated imide-containing polyol having the formula: ##STR1## and the corresponding ether having the formula: ##STR2## wherein R is a hydrocarbon group having the valance n+2 and is selected from the group consisting of benzene groups, naphthalene groups and alicyclic hydrocarbon groups containing 5 to 10 carbon atoms, R' is an aliphatic hydrocarbon group containing 3-12 carbon atoms, X is selected from the group consisting of bromine and chlorine, n is an integer from 1-6 and p is an integer from 2-6. They are prepared by reacting an alcohol (e.g. isopropyl alcohol), a halogenated dicarboxylic anhydride (e.g. tetrabromophthalic anhydride) and an aminopolyol (e.g. 2-amino-2-ethyl-1,3-propanediol).

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Spatz et al., "Ind. and Eng." Chemical Res. and Dev., 8, No. 4, pp. 397-398 (1969).

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