Resistance chalking Characteristic vinyl chloride resin moldings and resistance chalking Characteristic vinyl chloride resin constituent

摘要

PROBLEM TO BE SOLVED: To obtain the subject molded product having improved heat resistance, weathering resistance, chalking resistance, etc., by adding a specific inorganic filler as an additive to a resin consisting mainly of a vinyl chloride-based resin and subsequently molding the mixture. ;SOLUTION: This vinyl chloride-based resin molded product is obtained by adding (B) an inorganic filler consisting mainly of hydroxysodalite having the composition formula: Na₄Al₃Si₃O₁₂(OH) to (A) a resin consisting mainly of a vinyl chloride-based resin and subsequently molding the mixture. The component B is preferably obtained by treating a mineral called kaolin, ceyssatite or China clay and consisting mainly of water-containing aluminum silicate of the formula: Al₂Si₂O₅(OH)₄, etc., with an alkali. The component B is preferably added in an amount of 0. 05-100 pts.wt. per 100 pts.wt. of the component A. The addition of the component B to the component A is carried out, for example, by using a master batch obtained by preliminarily dispersing the component B in a resin for the master batch, a plasticizer, a lubricant, etc., in a high concentration. The content of the component B in the inorganic filler composition as the master batch is preferably 5-90 wt.%.;COPYRIGHT: (C)1999,JPO