| 摘要 |
<p>Propylene resin composition (A) comprising a combination of (a) propylene block copolymer or propylene homopolymer having a propylene chain moiety of >=0.90 isotactic pentad fraction; (b) when the component (a) is a propylene homopolymer, 0.5 to 20 mass% of ethylene-alpha-olefin copolymer rubber, or when the component (a) is a propylene block copolymer, 0 to 10 mass% of ethylene-alpha-olefin copolymer rubber; (c) 0 to 20 mass% of high-density polyethylene; and (d) per 100 parts by mass of the sum of components (a), (b) and (c), 0.4 to 3.0 parts by mass of inorganic nucleating agent. Thus, there is provided a propylene resin composition of specific gravity minimized that has high rigidity at room temperature and higher temperature and excels in impact resistance at freezing point and lower temperature, having an odor level admissible in food product usages. Further, there are provided a multilayer structure having the above composition in at least one layer thereof, a container obtained by thermal forming, an injection molded item, an extrusion molded item and processes for producing them.</p> |
