To provide an ethylene/α-olefin/non-conjugated polyene copolymer composition which has excellent processability and gives a crosslinked molded body having excellent physical properties.SOLUTION: There is provided a copolymer composition which comprises: a copolymer (S) having a constitutional unit derived from ethylene (A), a constitutional unit derived from an α-olefin (B) having 3 to 20 carbon atoms and a constitutional unit derived from a specific non-conjugated polyene (C); a hydrosilyl group-containing compound (Y), which is an organohydrogen polysiloxane having at least one aralkyl group bonded to a silicon atom and at least two hydrogen atoms bonded to silicon atoms in the molecule; a platinum-based catalyst; and carbon black, wherein the copolymer (S) comprises a copolymer (S1) and a copolymer (S2) having different intrinsic viscosities [η] (in decalin at 135°C).SELECTED DRAWING: None

    【課題】加工性に優れると共に、得られる架橋成形体の物性にも優れるエチレン・α-オレフィン・非共役ポリエン共重合体組成物を提供する。【解決手段】エチレン(A)由来の構成単位と、炭素数3~20のα-オレフィン(B)由来の構成単位と、特定の非共役ポリエン(C)に由来する構成単位とを有しする共重合体(S)と、分子内に少なくとも1つのケイ素原子結合アラルキル基および少なくとも2つのケイ素原子結合水素原子を有するオルガノハイドロジェンポリシロキサンである、ヒドロシリル基含有化合物(Y)と、白金系触媒と反応抑制剤とカーボンブラックとを含み、共重合体(S)は、極限粘度[η](135℃デカリン中)が異なる共重合体(S1)と、共重合体(S2)とからなる共重合体組成物。【選択図】なし


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    Title :

    COPOLYMER COMPOSITION, CROSSLINKED MOLDED BODY AND WEATHER STRIP SPONGE


    Additional title:

    共重合体組成物、架橋成形体およびウェザーストリップスポンジ


    Contributors:

    Publication date :

    2024-03-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    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 / C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind / C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind / C08J Verarbeitung , WORKING-UP / 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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