Patent ID: 7332534

Claim:
A flame retardant thermoset composition, comprising, a thermoset polymer, wherein the thermoset polymer is selected from the group consisting of unsaturated polyester resins, epoxy resins and polyurethanes and a flame retardant formulation, wherein the flame retardant formulation includes a flame retardant component A, from 90 to 99.9% by weight of phosphinate salt of the formula (I) a diphosphinate salt of the formula (II) a polymer of the phosphinate salt, a polymer of the diphosphinate salt or mixtures thereof where R 1 , R 2 are the same or different and are each C 1 -C 6 -alkyl, linear or branched, or aryl; R 3 is C 1 -C 10 -alkylene, linear or branched, C 6 -C 10 -arylene, -alkylarylene or -arylalkylene; M is Mg, Ca, Al, Sb, Sn, Ge, Ti, Zn, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na or K; m is from 1 to 4; n is from 1 to 4; x is from 1 to 4, as oomponentB, from 0 to 9.9% by weight of a nitrogen-containing synergist or a phosphorus/nitrogen flame retardantand, as component C, from 0.1 to 10% by weight of a liquid component.