To provide a thermoplastic elastomer composition that is excellent in appearance, injection moldability, low-temperature impact resistance, and expandability as an airbag storage cover.SOLUTION: A thermoplastic elastomer composition comprises a dynamically heated mixture of the following components (A)-(D): (A) a propylene polymer; (B) an ethylene-α-olefin copolymer; (C) a specific organic peroxide; and (D) an organic peroxide represented by the formula (5) (R5 and R6 independently represent a hydrogen atom or an alkyl group. Y is a monovalent organic group having an aromatic hydrocarbon group. Z is a monovalent organic group).SELECTED DRAWING: Figure 1

    【課題】外観、射出成形性、低温耐衝撃性、エアバッグ収納カバーとしたときの展開性能に優れた熱可塑性エラストマー組成物を提供する。【解決手段】下記成分(A)~(D)を含む混合物を動的熱処理して得られる熱可塑性エラストマー組成物。成分(A):プロピレン系重合体成分(B):エチレン・α-オレフィン共重合体成分(C):特定の有機過酸化物成分(D):下記式(5)で表される有機過酸化物TIFF2022142499000023.tif39140(R5、R6はそれぞれ独立に水素原子、又はアルキル基。Yは芳香族炭化水素基を有する一価の有機基。Zは一価の有機基。)【選択図】図1


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    Title :

    THERMOPLASTIC ELASTOMER COMPOSITION, MOLDING, AND AIRBAG STORAGE COVER


    Additional title:

    熱可塑性エラストマー組成物、成形体及びエアバック収納カバー


    Contributors:

    Publication date :

    2022-09-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / C08J Verarbeitung , WORKING-UP / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS



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