RESIN COMPOSITION, CROSSLINKED RESIN COMPOSITION AND MOLDED BODY
To provide a composition capable of suppressing blocking of a 4-methyl-1-pentene polymer and suppressing bleeding of a crosslinking auxiliary as a composition comprising a 4-methyl-1-pentene polymer and a crosslinking auxiliary.SOLUTION: There is provided a resin composition (X1) comprising 100 pts....
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Sprache: | eng ; jpn |
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Zusammenfassung: | To provide a composition capable of suppressing blocking of a 4-methyl-1-pentene polymer and suppressing bleeding of a crosslinking auxiliary as a composition comprising a 4-methyl-1-pentene polymer and a crosslinking auxiliary.SOLUTION: There is provided a resin composition (X1) comprising 100 pts.mass of a 4-methyl-1-pentene polymer (A) satisfying the following requirements (A-a) to (A-c) and 0.1 to 50 pts.mass of a crosslinking auxiliary (B): (A-a) the content ratio of a constitutional unit (U1) derived from 4-methyl-1-pentene is 80 to 100 mol% and the content ratio of a constitutional unit (U2) derived from an α-olefin having 2 to 20 carbon atoms (excluding 4-methyl-1-pentene) is 0 to 20 mol% (provided that the total content ratio of the constitutional unit (U1) and the constitutional unit (U2) is defined as 100 mol%); (A-b) the melt flow rare (MFR) under a load of 5 kg at 260°C is in the range of 0.01 to 250 g/10 min; (A-c) the melting point measured by DSC is in the range of 200 to 250°C.SELECTED DRAWING: None
【課題】本発明は、4-メチル-1-ペンテン重合体と架橋助剤とを含む組成物として、4-メチル-1-ペンテン重合体のブロッキングを抑制でき、架橋助剤のブリードも抑制できる組成物を提供することを目的とする。【解決手段】下記要件(A-a)~(A-c)を満たす4-メチル-1-ペンテン重合体(A)100質量部と、架橋助剤(B)0.1~50質量部とを含む樹脂組成物(X1):(A-a)4-メチル-1-ペンテンから導かれる構成単位(U1)の含有率が80~100モル%であり、炭素原子数2~20のα-オレフィン(4-メチル-1-ペンテンを除く。)から導かれる構成単位(U2)の含有率が0~20モル%〔但し、(構成単位(U1)および構成単位(U2)の含有率の合計を100モル%とする。)である;(A-b)260℃、5kg荷重下のメルトフローレート(MFR)が0.01~250g/10分の範囲にある;(A-c)DSCで測定した融点(Tm)が200~250℃の範囲にある。【選択図】なし |
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