| 摘要 |
PROBLEM TO BE SOLVED: To obtain a resin material capable of giving an injection molded body free from the generation of flow marks, having no appearance defects on the surface of the molded body, high in rigidity and shock strength by using a resin obtained by modifying a propylene through grafting a specific unsaturated compound. SOLUTION: (A)This material which has preferably a die swell ratio of >=1.2 is obtained by using a modified polypropylene prepared by grafting (A) a polypropylene having a melt flow preferably of 1-100 g/10 min and (B) an unsaturated fatty acid ester having >=2, preferably 2-9, more preferably 2-4 internal unsaturated bonds in an amount of 0.01-5 wt.%, preferably <=2 wt.%, more preferably <=1 wt.%. The B component is preferably an ester of a higher unsaturated fatty acid having >=2 internal unsaturated bonds and a monovalent or a polyvalent alcohol, and concretely, it is preferably a vegetable oil. |
