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    • 7. 发明授权
    • Nitrile group-containing copolymer rubber and a vulcanizable nitrile group-containing copolymer rubber composition
    • 含腈基的共聚物橡胶和含硫化腈基的共聚物橡胶组合物
    • US08044147B2
    • 2011-10-25
    • US11884794
    • 2006-02-22
    • Hiroyasu NagamoriAkira TsukadaTakafumi Kawanaka
    • Hiroyasu NagamoriAkira TsukadaTakafumi Kawanaka
    • C08F36/00
    • C08K5/14C08F236/12C08L9/02C08L13/00C08L2666/08
    • A nitrile group-containing copolymer rubber comprising 10 to 40 wt % of α,β-ethylenically unsaturated nitrile unit (a), 10 to 60 wt % of α,β-ethylenically unsaturated carboxylic acid ester unit (b), and 20 to 70 wt % in total of conjugated diene unit (c) and saturated conjugated diene unit (d), wherein a content ratio “x” of a conjugated diene unit (c) based on the total content of said conjugated diene unit (c) and said saturated conjugated diene unit (d) is 0.08 or smaller, and “x·A” defined as a product of said ratio “x” and a content ratio “A” (%) of said α,β-ethylenically unsaturated nitrile unit (a) is 1.5 or smaller. According to the present invention, a nitrile group-containing copolymer rubber capable to provide a rubber vulcanizate highly balanced in mechanical strength, heat aging resistance, oil resistance, cold resistance and ozone resistance, and a vulcanizable rubber composition using the rubber can be provided.
    • 含有腈基的共聚物橡胶含有10〜40重量%的α,α-烯属不饱和腈单元(a),10〜60重量%的α,b-烯属不饱和羧酸酯单元(b)和20 〜70重量%的共轭二烯单元(c)和饱和共轭二烯单元(d),其中共轭二烯单元(c)的含量比“x”以所述共轭二烯单元(c)的总含量计, 所述饱和共轭二烯单元(d)为0.08以下,作为所述比例“x”与所述α,β-烯键式不饱和腈的含有比“A”(%)的乘积定义的“×A” 单位(a)为1.5以下。 根据本发明,可以提供能够提供机械强度,耐热老化性,耐油性,耐寒性和耐臭氧性高度平衡的橡胶硫化橡胶和使用该橡胶的可硫化橡胶组合物的含腈基的共聚物橡胶。
    • 8. 发明申请
    • Nitrile Group-Containing Copolymer Rubber and a Vulcanizable Nitrile Group-Containing Copolymer Rubber Composition
    • 含有腈基的共聚物橡胶和含可硫化腈基的共聚物橡胶组合物
    • US20090124741A1
    • 2009-05-14
    • US11884794
    • 2006-02-22
    • Hiroyasu NagamoriAkira TsukadaTakafumi Kawanaka
    • Hiroyasu NagamoriAkira TsukadaTakafumi Kawanaka
    • C08K5/14C08F22/30
    • C08K5/14C08F236/12C08L9/02C08L13/00C08L2666/08
    • A nitrile group-containing copolymer rubber comprising 10 to 40 wt % of α,β-ethylenically unsaturated nitrile unit (a), 10 to 60 wt % of α,β-ethylenically unsaturated carboxylic acid ester unit (b), and 20 to 70 wt % in total of conjugated diene unit (c) and saturated conjugated diene unit (d), wherein a content ratio “x” of a conjugated diene unit (c) based on the total content of said conjugated diene unit (c) and said saturated conjugated diene unit (d) is 0.08 or smaller, and “x·A” defined as a product of said ratio “x” and a content ratio “A” (%) of said α,β-ethylenically unsaturated nitrile unit (a) is 1.5 or smaller. According to the present invention, a nitrile group-containing copolymer rubber capable to provide a rubber vulcanizate highly balanced in mechanical strength, heat aging resistance, oil resistance, cold resistance and ozone resistance, and a vulcanizable rubber composition using the rubber can be provided.
    • 含有腈基的共聚物橡胶,包含10〜40重量%的α,β-烯键式不饱和腈单元(a),10〜60重量%的α,β-烯键式不饱和羧酸酯单元(b)和20〜70 共轭二烯单元(c)和饱和共轭二烯单元(d)的总量的重量%,其中共轭二烯单元(c)的含量比“x”基于所述共轭二烯单元(c)和所述 饱和共轭二烯单元(d)为0.08以下,作为所述α,β-烯属不饱和腈单元(a)的比例“x”和含量比“A”(%)的乘积,“xA” 1.5以下 根据本发明,可以提供能够提供机械强度,耐热老化性,耐油性,耐寒性和耐臭氧性高度平衡的橡胶硫化橡胶和使用该橡胶的可硫化橡胶组合物的含腈基的共聚物橡胶。