Haloneopentyl Bis(ALKYL) Phosphate Ester, Flame Retardant Composition Containing Same and Polyurethane Foam Prepared Therewith
A haloneopentyl dialkylphosphate ester possesses the general formula wherein each X is Br or Cl, provided at least two of X are Br, and R 1 and R 2 each independently is alkyl of up to 12 carbon atoms.
1 . Haloneopentyl bis(alkyl)phosphate ester of the general formula
wherein each X is Br or Cl, provided at least two of X are Br; and, R 1 and R 2 each independently is alkyl of up to 12 carbon atoms.
2 . The haloneopentyl bis(alkyl)phosphate ester of claim 1 wherein each X is Br and R 1 and R 2 each is propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, n-pentyl, isopentyl, 2-methylbutyl, n-hexyl, isohexyl, 2-methylhexyl or 2-ethylhexyl.
3 . The haloneopentyl bis(alkyl)phosphate ester of claim 2 which is selected from the group consisting of tribromoneopentyl bis(isobutyl)phosphate ester, dibromochloroneopentyl bis(isobutyl)phosphate, trichchloroneopentyl bis(isobutyl)phosphate, tribromoneopentyl bis(2-ethylhexyl)phosphate and mixtures thereof, said phosphate ester(s) being non-mutagenic according to the Ames test for mutagenicity.
4 . The haloneopentyl bis(alkyl)phosphate ester of claim 1 which is non-mutagenic according to the Ames test for mutagenicity.
5 . A flame retardant composition comprising at least one haloneopentyl bis(alkyl)phosphate ester of claim 1 .
6 . A flame retardant composition comprising at least one haloneopentyl bis (alkyl)phosphate ester of claim 4 .
7 . The flame retardant composition of claim 5 further comprising at least one non-halogenated flame retardant compound.
8 . The flame retardant composition of claim 7 wherein the non-halogenated flame retardant compound is selected from the group consisting of triaryl phosphate ester, alkylated triaryl phosphate ester, oligomeric phosphate ester, melamine and melamine derivative.
9 . The flame retardant composition of claim 7 wherein the non-halogenated flame retardant comprises from about 55 to about 95 weight percent of the total flame retardant compounds.
10 . The flame retardant composition of claim 7 wherein the non-halogenated flame retardant comprises from about 55 to about 85 weight percent of the total flame retardant compounds.
11 . The flame retardant composition of claim 7 wherein the non-halogenated flame retardant comprises from about 65 to about 90 weight percent of the total flame retardant compounds.
12 . The flame retardant composition of claim 7 wherein the non-halogenated flame retardant comprises from about 65 to about 75 weight percent of the total flame retardant compounds.
13 . A polyurethane foam containing the flame retardant composition of claim 5 .
14 . The polyurethane foam of claim 13 which is a low density flexible polyurethane foam.
15 . A polyurethane foam containing the flame retardant composition of claim 7 .
16 . The polyurethane foam of claim 15 which is a low density flexible polyurethane foam.
17 . A polyurethane foam containing the flame retardant composition of claim 9 .
18 . The polyurethane foam of claim 17 which is a low density flexible polyurethane foam.
19 . A polyurethane foam containing the flame retardant composition of claim 10 .
20 . The polyurethane foam of claim 19 which is a low density flexible polyurethane foam.