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    • 85. 发明申请
    • RUBBER COMPOSITION LOWERED IN HEAT BUILD-UP AND ROLLS
    • 橡胶组合物在热建筑和滚子中下降
    • WO1997028217A1
    • 1997-08-07
    • PCT/JP1997000235
    • 1997-01-31
    • NIPPON ZEON CO., LTD.NISHIMURA, Koichi
    • NIPPON ZEON CO., LTD.
    • C08L21/00
    • C08K5/098C08K3/20C08K5/14C08L21/00
    • A rubber composition lowered in heat build-up which comprises (a) 100 parts by weight of an elastomer cross-linkable with an organic peroxide cross-linking agent, (b) 10 to 150 parts by weight of a metal salt of an alpha , beta -ethylenically unsaturated carboxylic acid, (c) 5 to 100 parts by weight of magnesium oxide having a specific surface area of 25 m /g or below as determined by the BET adsorption method, and (d) 0.1 to 30 parts by weight of an organic peroxide cross-linking agent; and rolls having a rubber cover made of a product of cross-linking of the composition. The rolls have both excellent strength characteristics and low heat build-up and are particularly suitable for the use under high load.
    • 含有(a)100重量份与有机过氧化物交联剂可交联的弹性体的橡胶组合物,(b)10〜150重量份的α, β-烯属不饱和羧酸,(c)通过BET吸附法测定的比例为5〜100重量份比表面积为25m 2 / g以下的氧化镁,(d)0.1〜30份 的有机过氧化物交联剂; 以及具有由组合物的交联产物制成的橡胶盖的辊。 这些辊具有优异的强度特性和低的积热性,并且特别适合于在高负载下使用。
    • 86. 发明申请
    • HIGHLY SATURATED NITRILE COPOLYMER RUBBER COMPOSITION AND HEAT-RESISTANT WIRE COVERING MATERIAL
    • 高饱和硝酸酯共聚物橡胶组合物和耐热丝覆盖材料
    • WO1997028216A1
    • 1997-08-07
    • PCT/JP1997000216
    • 1997-01-30
    • NIPPON ZEON CO., LTD.ODAGAWA, YoshiyukiNISHIMURA, Koichi
    • NIPPON ZEON CO., LTD.
    • C08L15/00
    • H01B3/28C08K5/14C08L15/005C08L33/08C08L71/02C08L2666/14C08L2666/04
    • A highly saturated nitrile copolymer rubber composition which comprises (I) a polymer mixture comprising 40 to 90 % by weight (based on the total amount of the polymer components (1 and 2)) of a polymer component (1) selected from among highly saturated nitrile copolymer rubbers each having an iodine value of 120 or below and 10 to 60 % by weight (based on the total amount of the polymer components (1 and 2)) of at least one polymer component (2) selected from among polyacrylate ester rubbers, ethylene oxide homopolymers, propylene oxide homopolymers and copolymers mainly comprising ethylene oxide and/or propylene oxide, and (II) an organic peroxide. Products of vulcanization of the composition exhibit so excellent heat resistance as to withstand deterioration or hardening even after long-term exposure to high temperature, thus being particularly useful as wire covering material.
    • 一种高度饱和的腈共聚物橡胶组合物,其包含(I)聚合物组分(1)的4​​0至90重量%(基于聚合物组分(1和2)的总量)的聚合物混合物,其选自高饱和度 至少一种选自聚丙烯酸酯橡胶中的聚合物组分(2)的碘值分别为120或以下且10至60重量%(基于聚合物组分(1和2)的总量)的腈共聚物橡胶 ,环氧乙烷均聚物,环氧丙烷均聚物和主要包含环氧乙烷和/或环氧丙烷的共聚物,和(II)有机过氧化物。 组合物的硫化产物表现出如此优异的耐热性,即使长期暴露在高温下也能耐受劣化或硬化,因此特别适用于覆盖材料。