Patent ID: 6114454
Filing Date: 2000-09-05
Classification: C01P,C08K,C09C

Abstract:
A thermoplastic compound, comprising:(i) a thermoplastic resin;(ii) 20 to 80% by weight, based on the total weight of the filler and of the resin, of pulverulent mineral filler;(iii) 0.25% to 3.0% by weight, based on the total weight of the pulverulent mineral filler, of a styrene-maleic anhydride copolymer;(iv) optionally, a conventional additive;wherein said thermoplastic resin is selected from the group consisting of (a) a hydrocarbon homopolymer without an aryl group, (b) a copolymer without an aryl group and consisting of carbon, hydrogen and oxygen atoms in which the oxygen atom content does not exceed 22% by weight and (c) a mixture of said homopolymer and said copolymer;wherein said pulverulent mineral filler is basic or with a surface that contains free hydroxyl groups;wherein said styrene-maleic anhydride has a weight average molecular weight between 1000 and 3000; andwherein said additive is selected from the group consisting of thermal stabilizer, photochemical stabilizer, antioxidant, lubricant, plastifier, anitstatic agent, fireproofing agent, deactivator of metals, glass ball, mineral fiber, organic fiber and pigment.