THERMOPLASTIC ELASTOMER COMPOSITION, METHOD FOR BONDING MOLDED ARTICLE THEREOF TO MOLDED ARTICLE, COMPOSITE MOLDED ARTICLE CONTAINING MOLDED ARTICLE THEREOF AND MEDICAL INFUSION SET HAVING COMOPISITE MOLDED ARTICLE

摘要

PROBLEM TO BE SOLVED: To provide a thermoplastic elastomer composition excellent in adhesion to a polar resin and to provide a bonding method and a composite molded article and a medical infusion set each using the elastomer composition.

SOLUTION: The thermoplastic elastomer composition comprises (A) 85-98 mass% syndiotactic 1,2-polybutadiene having ≥70% 1,2-bond content and having 5-50% degree of crystallization and (B) 2-15 mass% styrene-butadiene-styrene and/or styrene-isoprene-styrene block copolymer having 35-45 mass% styrene content, wherein the component (A)+ the component (B)=100 mass%.

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