| 摘要 |
PROBLEM TO BE SOLVED: To enable the production of a molded item which is excellent in fabricability, such as punchability, and has a high value added by using a polypropylene resin compsn. comprising a polypropylene resin, an ethylene-α- olefin copolymer rubber, and an inorg. substance in a specified wt. ratio as the base material. SOLUTION: The polypropylene resin (A) is pref. one having a propylene content of 50wt.% or higher, and a propylene homopolymer and a propylene- ethylene random copolymer are examples. The ethylene-α-olefin copolymer rubber (B) is pref. one having an ethylene content of 10-90wt.%, and the use of an ethylene-octene copolymer rubber is esp. pref. An inorg. flame retardant (e.g. aluminum hydroxide), a conductive carbon (e.g. acetylene black), etc., are used as the inorg. substance (C). The compsn. comprises 57-92wt.% ingredient A, 3-30wt.% ingredient B, and 5-40wt.% ingredient C. |
