会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 5. 发明申请
    • PROCESS FOR SELECTIVE HYDROGENATION OF UNSATURATED POLYMERS
    • 选择性加氢不饱和聚合物的方法
    • WO9525130A8
    • 2000-02-17
    • PCT/FI9500120
    • 1995-03-03
    • NESTE OYREKONEN PETRIKOPOLA NINAKOSKIMIES SALMEANDELL OVEMAEKELAE MARITA
    • REKONEN PETRIKOPOLA NINAKOSKIMIES SALMEANDELL OVEMAEKELAE MARITA
    • C08C19/02C08F8/04
    • C08C19/02C08F8/04
    • The invention relates to the selective hydrogenation of unsaturated polymers, in particular elastomeric polymers which contain aromatic rings and carbon-carbon double rings, for example polymers prepared from styrene and butadiene. In this case, the polymer molecule contains internal and terminal-group double bonds, as well as unsaturated bonds in aromatic rings. According to the invention, only the unsaturated terminal and internal bonds are hydrogenated, whereby the thermal and weather resistance properties of the product are improved. Conventionally, hydrogenation has been performed by means of nickel or cobalt catalysts, but now it has been observed that a metallocene/alumoxane catalyst complex not only catalyzes the polymerization reaction of various olefinic compounds but also catalyzes the selective hydrogenation of unsaturated polymers, preferably styrene-butadiene-styrene block polymers.
    • 本发明涉及不饱和聚合物的选择性氢化,特别是包含芳香环和碳 - 碳双环的弹性体聚合物,例如由苯乙烯和丁二烯制备的聚合物。 在这种情况下,聚合物分子含有内部和末端基团双键以及芳环中的不饱和键。 根据本发明,只有不饱和端和内键被氢化,从而提高了产品的耐热和耐候性。 通常,通过镍或钴催化剂进行氢化,但现在观察到茂金属/铝氧烷催化剂络合物不仅催化各种烯烃化合物的聚合反应,而且还催化不饱和聚合物的选择性氢化,优选苯乙烯 - 丁二烯 - 苯乙烯嵌段聚合物。