| 摘要 |
PURPOSE:To obtain a resin sheet for punching, having excellent rigidity, etc., and improved in punchability without lowering heat resistance by blending a chlorinated vinyl chloride resin with a methacrylic acid ester-butadiene-styrene copolymer, etc., at a specific amount. CONSTITUTION:The objective resin sheet obtained by blending (A) 100 pts.wt. chlorinated vinyl chloride resin, preferably having 60-70% chlorine content and 400-1200 polymerization degree with (B) 3-20 pts.wt., preferably 5-10 pts.wt. methacrylic acid ester-butadiene-styrene copolymer and (C) 5-20 pts.wt., preferably 10-40 pts.wt. rubber-nitrile monomer-styrene monomer copolymer. |
