Patent ID: 6255374
Filing Date: 2001-07-03
Classification: H01B,Y10T

Abstract:
A polyvinyl chloride composition suitable for insulation of thin wall automotive primary cable comprising a blend of:a) from about 60 to 100 parts by weight of polyvinyl chloride resin (PVC);b) from about 1 to 6 parts by weight of a zinc based thermal stabilizer, wherein the stabilizer is substantially devoid of cadmium or calcium and consists essentially of zinc as the sole metal stabilizer;c) from about 0.2 to 2.0 parts by weight of an octadecyl-3,5-diterbutyl-4 hydroxy hydrocinnamate antioxidant;d) from about 0.15 to 0.2 parts by weight of a calcium stearate lubricant;e) from about 10 to 50 parts by weight of precipitated calcium carbonate filler;f) from about 10 to 50 parts by weight of colloidal silica filler;g) from about 2 to 8 parts by weight of antimony trioxide flame retardant;h) an effective amount of a plasticizer for providing low volatility at high temperature and providing low freezing point, selected based upon the requirements of the cable; andi) optionally, up to about 100% by weight based on the amount of PVC of a PVC urethane polymer.