| 摘要 |
PURPOSE:To obtain the titled composition outstanding in impact resistance and weatherability, developing no chalking, suitable for window frames for construction, etc., by incorporating a vinyl chloride resin with each specified amount of a chlorinated polyethylene, hydrotalcite group, etc. CONSTITUTION:The objective composition can be obtained by incorporating (A) 100pts.wt. of a vinyl chloride resin with a polymerization degree 600-3,500 with (B) 2-15(pref. 2.5-10)pts.wt. of a (non)crystalline chlorinated polyethylene with a chlorine content 20-50wt%, (C) 0.5-5(pref. 1-4)pts.wt. of hydrotalcite group with an average particle size 0.1-150mum of formula (Me is Al, etc.; a is 1-10; b is 1-5; c is 10-20; M is 1-8), (D) 0.5-5(pref. 1-4.5)pts.wt. of an inorganic substance with an average particle size 0.5-200mum selected from lead oxides, magnesium oxide, etc., and (E) 0.5-10(pref. 1-7)pts.wt. of an epoxy resin having in one molecule two or more reactive alpha-epoxy groups.
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