Vinyl halide polymer composition

Claim 1

AN ELECTRICALLY INSULATING COMPOSITION CHARACTERIZED BY IMPROVED PHYSICAL PROPERTIES AFTER CONTINUED EXPOSURE TO ELEVATED TEMPERATURES WHILE RETAINING EXCELLENT LOW TEMPERATURE FLEXIBILITY, SAID COMPOSITION COMPRISING AT LEAST 50% BY WEIGHT OF POLYVINYL CHLORIDE, UP TO ABOUT 50% BY WEIGHT THEREOF OF A FILLER, AND ABOUT 25 TO 100%, BASED ON THE POLYVINYL CHLORIDE CONTENT OF TOTAL PLASTICIZER INCLUDING 25 TO 60% BY WEIGHT OF SAID TOTAL PLASTICIZER OF A HIGH TEMPERATURE PLASTICIZER CONSISTING OF A POLYESTER OF A GLYCOL AND SEBACIC ACID WITH A MOLECULAR WEIGHT OF APPROXIMATELY 8000, THE BALANCE OF THE PLASTICIZER BEING A LOW TEMPERATURE PLASTICIZER CONSISTING OF AN ALKYL ESTER OF A HYDROCARBON DICARBOXYLIC ACID AND A MINOR AMOUNT OF A STABILIZATION SYSTEM CONSISTING ESSENTIALLY OF 0.25 TO 2.5 PARTS OF A CO-PRECIPATED BARIUM CADMIUM LAURATE CONTAINING 7.5% CADMIUM AS METAL AND 15% BARIUM AS METAL, THE FATTY ACID MOIETY VARYING FROM CAPRIC THROUGH STEARIC ACID, 0.25 TO 5.0 PARTS OF A PHOSPHITE OF THE FORMULA (RO)3P WHERE R IS THE HYDROCARBON RADICAL OF A MONOHYDRIC PHENOL OF THE FORMULA ROH AND 0.5 TO 5.0 PARTS OF AN EPOXY COMPOUND CONSISTING OF A MIXTURE OF (1) A RESINOUS CONDENSATION PRODUCT OF BIS(4-HYDROXY PHENYL) DIMETHYL METHANE AND EPICHLOROHYDRIN WITH (2) AN EPOXIDIZED SOYBEAN OIL PLASTICIZER, THE RESULTANT MIXTURE HAVING AN OXIRANE OXYGEN CONTENT OF 5.5%.