The present invention relates to a thermoplastic elastomer composition which can provide a molded body having low-temperature impact resistance compatible with high-temperature impact resistance to a high level. When the thermoplastic resin composition is injection molded in a mold cavity having a size of width 90 mm x length 150 mmk x thickness 2.0 mm, at a cylinder temperature of 220℃ and a mold temperature of 50℃ with an injection rate of 25 cm^3/sec, and the molded body is cut into a size of width 30 mm x length 30 mm x thickness 2.0 mm at the central portion thereof to provide a specimen, the specimen satisfies the following conditions (1) and (2): (1) the specimen shows an increase in area (S) of 20% or less, after it is dipped in petroleum benzine at 23℃ for 24 hours; and (2) the specimen shows an increase in volume (V) of 20-125%, after it is dipped in petroleum benzine at 23℃ for 24 hours.

    (과제) 저온 내충격성과 고온 내충격성이 높은 레벨로 양립된 성형체를 얻을 수 있는 열가소성 엘라스토머 조성물을 제공한다. (해결 수단) 열가소성 엘라스토머 조성물로서, 그 열가소성 엘라스토머 조성물을, 실린더 온도 220 ℃, 금형 온도 50 ℃, 사출률 25 ㎤/초의 조건에서, 폭 90 ㎜ × 길이 150 ㎜ × 두께 2.0 ㎜ 의 금형 캐비티에 사출 성형하여 성형체를 얻고, 그 성형체의 중앙 부근을 폭 30 ㎜ × 길이 30 ㎜ × 두께 2.0 ㎜ 의 사이즈로 타발하여 얻어진 시험편이, 하기 요건 (1) 및 (2) 를 만족하는 열가소성 엘라스토머 조성물 : 요건 (1) : 그 시험편을, 23 ℃ 의 석유 벤진에 24 시간 함침 후의 면적 증가율 S 가 20 % 이하이다 ; 요건 (2) : 그 시험편을, 23 ℃ 의 석유 벤진에 24 시간 함침 후의 체적 증가율 V 가 20 % 이상 125 % 이하이다.


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    Titel :

    THERMOPLASTIC ELASTOMER COMPOSITION


    Weitere Titelangaben:

    열가소성 엘라스토머 조성물


    Beteiligte:

    Erscheinungsdatum :

    01.10.2021


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Koreanisch


    Klassifikation :

    IPC:    C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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