Halogen containing resin composition

Claim 1

An environmentally acceptable stabilizer composition for enhancing the resistance to deterioration upon heating at 175° C. of a vinyl chloride polymer from which lead, cadmium, mercury, thallium, and arsenic are substantially excluded, comprising (A) at least one dialkyltin, zinc, alkali metal, or alkaline earth metal organic phosphate ester salt having per metal atom from one to a number equal to the valence of the metal of phosphate ester groups and from one to two organic groups per phosphate groups, the organic groups being alkyl, aryl, alkaryl, aralkyl, ether-interrupted alkyl, or ether-interrupted aralkyl groups having from 1 to about 80 carbon atoms; and (B) at least one betadiketone compound having 5 to about 30 carbon atoms which is a cyclic or open-chain betadiketone or a zinc, alkali metal or alkaline earth metal salt thereof, and is represented by the formula ##STR23## in which n is one or two; X is linked with Y or with Z in a 5 to 6 membered carbocyclic or oxygen-heterocyclic ring structure or when not linked with Y or with Z is a hydrocarbon group, an alkoxyhydrocarbon group, or an alkylenedioxyhydrocarbon group having up to 18 carbon atoms; Y when not linked in a ring structure with X is a hydrogen atom, an acyl group ##STR24## where R'" is alkyl or aryl, or a hydrocarbon, alkoxyhydrocarbon, or alkylenedioxyhydrocarbon X group; Z is a hydrogen atom, a halohydrocarbon group, or a hydrocarbon, alkoxyhydrocarbon, or alkylenedioxyhydrocarbon X group; and M' is hydrogen, potassium, sodium, lithium, zinc, barium, strontium, calcium, or magnesium.