| 摘要 |
<p>PURPOSE:To obtain a food container with little discoloration and residual odor, free from offensive feeling during its use, to be used for preserving foods of strong odor and heating in microwave ovens by molding a specific PP resin. CONSTITUTION:The objective container can be obtained by molding a PP blend of (A) a PP resin with the isotactic pendant fraction (P) and melt flow rate (MFR) satisfying the relationship: 1.00 >= P >= 0.015 log MFR + 0.955 and, where appropriate, (B) 10 - 50 wt.% of a crystalline propylene-alpha-olefin random copolymer or crystalline propylene-alpha-olefin block copolymer containing >= 70 wt.% of propylene component. It is preferable that said blend be incorporated with 0.01 - 1 wt.% of a nucleating agent.</p> |
