| 摘要 |
PROBLEM TO BE SOLVED: To obtain a resin composition reduced in the deposition and accumulation of the constituent pigment on the molding machine even in a long-time continuous running and giving a molding having a good appearance by using a pigment and dispersant having a specified acrylic polymeric lubricant and used for dispersing the pigment as the principal components. SOLUTION: The dispersant used is an acrylic polymeric lubricant having a weight-average molecular weight of 10,000-1,000,000 and is used in an amount of, desirably, 1-80 pts.wt. per 100 pts.wt. pigment. The resin composition is added to a vinyl chloride resin to obtain a vinyl chloride resin composition. Desirably, the coloring resin composition is used in an amount of 0.05-20 pts.wt. per 100 pts.wt. vinyl chloride resin. The vinyl chloride resin is desirably a resin obtained by grafting vinyl chloride onto an acrylic copolymer obtained by copolymerizing 50-100 pts.wt. (meth)acrylate monomer giving a homopolymer having a glass transition temperature of -140 to -20 deg.C with 0-50 pts.wt. other radically polymerizable monomers.
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