Patent ID: 8314169

Claim:
A flame retardant polymer composition, the composition comprising: at least one thermoplastic polymer; and at least one flame retardant, the flame retardant comprising at least one organometallic phosphoric compound having the formula: [R 1 O] x M(A) a (B) b wherein, R 1 is a substituted or unsubstituted, straight chain, branched, or cyclic hydrocarbon group having 1 to 30 carbon atoms; x is greater than 0; M is zirconium or titanium; A and B are, independently, phosphates, pyrophosphates, or a combination thereof; a is from 1 to 5; b is from 0 to 5; and at least one phosphinic compound that contains a phosphinate having the formula (I) and/or (II), and/or a polymer formed from the phosphinate: wherein, R 7 and R 8 are, independently, hydrogen or substituted or unsubstituted, straight chain, branched, or cyclic hydrocarbon group having 1 to 6 carbon atoms; R 9 is a substituted or unsubstituted, straight chain, branched, or cyclic C 1 -C 10 alkylene, arylene, arylalkylene, or alkylarylene group; Z is magnesium, calcium, aluminum, antimony, tin, germanium, titanium, iron, zirconium, cesium, bismuth, strontium, manganese, lithium, sodium, potassium, protonated nitrogen base, or a combination thereof; m is from 1 to 4; n is from 1 to 4; p is from 1 to 4; and y is from 1 to 4 and wherein the weight ratio of the phosphinic compound to the organometallic phosphoric compound is from about 10 to about 200.