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US 4,393,248 AGranted
Flame retarded halogenated polyol
AssigneePennwalt Corporation
InventorsStanley R. Sandler, Joseph M. Bohen
Life of this patent
Estimating the term…
Abstract
A flame retardant, halogenated polyol having the formula ##STR1## wherein R is an aliphatic radical substituted with at least 1 hydroxyl groups, X is a halogen, and X' is a halogen or hydrogen, is used in the reaction mixture for preparing flame retarded polyurethanes.
Claims8
A flame retardant polyol of the formula ##STR10## wherein a is an integer of 0 or 1, with the proviso that
- when a is 0, b is an integer of 1 to 8, R is selected from the group consisting of a substituted linear or branched alkyl of 2 to 12 carbons and a substituted cyclic alkyl of 3 to 12 carbons;
- X is selected from the group consisting of F, Cl, and Br;
- and X' is selected from the group consisting of H, F, Cl, and Br;
- whereby the substituent is selected from the group consisting of at least 1 hydroxyl groups, and
- when a is 1, b is an integer of 1 to 8, R is selected from the group consisting of hydrogen, a substituted linear or branched alkyl of 2 to 12 carbons and a substituted cyclic alkyl of 3 to 12 carbons;
- X is selected from the group consisting of F, Cl, and Br;
- and X' is selected from the group consisting of H, F, Cl, and Br;
- whereby the substituent is selected from the group consisting of at least 1 hydroxyl groups.
5 more elements
The composition obtained by the condensation of 1-(1,1,1,3-tetrachlorobutoxy)-2,3-epoxypropane with glycerol in about a 2 to 1 mole ratio in the presence of a catalytic amount of boron trifluoride etherate.
The composition ##STR16##
Dependencies are inferred from the claim text.