# US 4,393,248 A · Flame retarded halogenated polyol

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- Number: US 4,393,248 A
- Document ID: US4393248A
- Status: Granted
- Kind: A
- Application number: 06/294,699
- Filed: 1981-08-20
- Granted: 1983-07-12
- Earliest claimed: 1981-08-20
- Assignees: Pennwalt Corporation
- Inventors: Stanley R. Sandler; Joseph M. Bohen
- Web page: https://patentgrep.com/patent/US4393248A

## CPC

- C07D 303/22: with monohydroxy compounds
- C07C 43/137: {containing halogen}
- C08G 18/3804: {Polyhydroxy compounds}
- C08G 18/3806: {having chlorine and/or bromine atoms}
- C07D: HETEROCYCLIC COMPOUNDS (macromolecular compounds C08)
- C07C: ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS

## 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.

## Claims

### Claim 1

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.

### Claim 2 (depends on 1)

The composition of claim 1 wherein a=0, b=1, ##STR11## X'=Br, and X=Cl.

### Claim 3 (depends on 1)

The composition of claim 1 wherein a=0, b=1, ##STR12## X' and X are Cl.

### Claim 4 (depends on 1)

The compositions of claim 1 wherein a=0, b=1, ##STR13## X'=Br, and X=Cl.

### Claim 5 (depends on 1)

The composition of claim 1 wherein a=0, b=1, ##STR14## and X and X' are Cl.

### Claim 6

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.

### Claim 7 (depends on 1)

The composition of claim 1 wherein a=0, b=1, X'=H, X=Cl and ##STR15##

### Claim 8

The composition ##STR16##