VINYL CHLORIDE-BASED RESIN MOLDED FORM

PROBLEM TO BE SOLVED: To provide a vinyl chloride-based resin molded form having a combination of flame retardancy meeting the requirements of FM4910 Flammability Test (FMRC: Clean Room Materials Flammability Test) and high impact resistance ranging from room temperature to lower temperatures. SOLUTION: The vinyl chloride-based resin molded form is such that the proportion of chlorine in the organic components therein stands at 50-64 mass%. This molded form is obtained by incorporating 100 pts.mass of a vinyl chloride-based resin with 8-15 pts.mass of an impact resistance improver as a copolymer of a polymethyl methacrylate component and a rubber component with a glass transition point of -55°C or lower. In this molded form, the compatibility of the impact resistance improver is increased owing to the polymethyl methacrylate component, while the impact resistance of the molded form is increased to the range to lower temperatures owing to the above rubber component, and the flame retardancy of the molded form is increased by suppressing the amount of the impact resistance improver therein to 15 pts.mass or lower and owing to a large amount of the chlorine therein. COPYRIGHT: (C)2008,JPO&INPIT