To provide a thermoplastic elastomer composition for an airbag storing cover, enabling obtaining a molded article excellent in molding appearance, low-temperature impact resistance and rigidity, and to provide an airbag storing cover using the thermoplastic elastomer composition.SOLUTION: A thermoplastic elastomer composition for an airbag storing cover is a dynamic heat-treated product of a mixture which contains a component (A), a component (B), a component (C) and a component (D) as follows. Preferably, the mixture contains 40-50 pts.mass of the component (A) and 50-60 pts.mass of the component (B) in 100 pts.mass of the sum total of the component (A) and the component (B), and contains 0.005-0.3 pt.mass of the component (C), and 0.005-2.0 pts.mass of the component (D) based on 100 pts.mass of the sum total of the component (A) and the component (B). The component (A): a polypropylene block copolymer; the component (B): an ethylene α-olefin copolymer; the component (C): an organic peroxide; and the component (D): a maleimide cross-linking aid.SELECTED DRAWING: None
【課題】成形外観、低温耐衝撃性及び剛性に優れた成形体を得ることができるエアバック収納カバー用熱可塑性エラストマー組成物と、この熱可塑性エラストマー組成物を用いたエアバッグ収納カバーを提供する。【解決手段】下記成分(A)、成分(B)、成分(C)及び成分(D)を含む混合物の動的熱処理物であるエアバック収納カバー用熱可塑性エラストマー組成物。この混合物は、成分(A)と成分(B)の合計100質量部中に成分(A)を40〜50質量部、成分(B)を50〜60質量部含み、成分(A)と成分(B)との合計100質量部に対して、成分(C)を0.005〜0.3質量部、成分(D)を0.005〜2.0質量部含むことが好ましい。成分(A):ポリプロピレンブロック共重合体成分(B):エチレン・α−オレフィン共重合体成分(C):有機過酸化物成分(D):マレイミド系架橋助剤【選択図】なし
THERMOPLASTIC ELASTOMER COMPOSITION FOR AIRBAG STORING COVER, AND AIRBAG STORING COVER
エアバック収納カバー用熱可塑性エラストマー組成物及びエアバック収納カバー
2021-09-16
Patent
Electronic Resource
Japanese
IPC: | C08J Verarbeitung , WORKING-UP / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen |
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