摘要 |
PROBLEM TO BE SOLVED: To produce a molded item excellent in softness, adhesiveness, and heat sealability by using a polymer having repeating units derived from a specific monomer so that the mechanically equivalent model of the item satisfies specific conditions. SOLUTION: This molded item is produced by using at least one polymer having repeating units derived from at least one monomer selected from among 2-10C olefin monomers and 4-15C diene monomers, and the mechanically equivalent model of the molded item satisfies the relations: 0.8<=λS<=1 andψS<=ψB. Pref. the model satisfies the relation: 0.05<=Φ<=0.5 in order for the item to be excellent in softness. Here,λS andψS are each a parameter which determines the size of an amorphous part of the surface layer;ψB is a parameter which determines the size of an amorphous part of the bulk layer; andΦis the fraction of the surface layer).
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