Production of hydrogenated nitrile rubbers
    8.
    发明授权
    Production of hydrogenated nitrile rubbers 失效
    生产氢化丁腈橡胶

    公开(公告)号:US4581417A

    公开(公告)日:1986-04-08

    申请号:US638954

    申请日:1984-08-08

    CPC分类号: C08C19/02

    摘要: The hydrogenation of NBR in an aromatic solvent with tris-(triphenylphosphane)-rhodium-(I) halide as catalyst under hydrogen pressures of from 20 to 350 bars and at temperatures in the range from 100.degree. to 145.degree. C. leads to products having degrees of hydrogenation of at least 90% and outstanding properties when the catalyst concentration amounts to between 0.05 and 0.6% by weight, based on solid rubber, and when hydrogenation is carried out in the presence of at most 2% by weight of triphenylphosphane.

    摘要翻译: 在20至350巴的氢气压力和100至145℃的温度下,用三 - (三苯基膦) - 铑 - (I)卤化物作为催化剂在芳族溶剂中氢化NBR,导致产物具有 当催化剂浓度为0.05-0.6重量%时,基于固体橡胶,并且当在至多2重量%的三苯基膦存在下进行氢化时,氢化程度至少为90%。

    Hydrogenation of nitrile group-containing unsaturated polymers
    10.
    发明授权
    Hydrogenation of nitrile group-containing unsaturated polymers 失效
    含腈基不饱和聚合物的氢化

    公开(公告)号:US4631315A

    公开(公告)日:1986-12-23

    申请号:US771646

    申请日:1985-09-03

    CPC分类号: C08C19/02

    摘要: Nitrile group-containing polymers are hydrogenated in a homogeneous phase with preservation of the nitrile groups in a low molecular weight ketone as a solvent and with a compound corresponding to formulaRuX[(L.sub.1)(L.sub.2).sub.n ]as a catalyst, whereinX represents hydrogen, halogenL.sub.1 represents hydrogen, halogen, optionally substituted cyclopentadienyl,L.sub.2 represents a phosphane, bisphosphane or arsane andn is 1, 2 or 3 and[(L.sub.1)(L.sub.2).sub.n ] represents a cyclopentadienyl bisphosphane.

    摘要翻译: 含腈基的聚合物以均相形式被氢化,在作为溶剂的低分子量酮中保留腈基,并使用对应于式RuX [(L1)(L2)n]的化合物作为催化剂,其中X表示 氢,卤素L 1代表氢,卤素,任选取代的环戊二烯基,L 2代表一种膦,二膦或二异氰酸酯,n是1,2或3,[(L1)(L2)n]代表环戊二烯基双膦。