| 摘要 |
<p>A 4-methyl-1-pentene polymer composition having excellent heat resistance, releasability, gas permeability, and mechanical properties, such as impact resistance, and heat sealability, and comprising a molten mixture of (a) 40 to 97.5 parts by weight of a 4-methyl-1-pentene polymer, (b) 2.5 to 60 parts by weight of a 1-butene polymer, and (c) 1 to 100 parts by weight, based on 100 parts by weight in total of the components (a) and (b), of a propylene copolymer.</p> |
