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
    • 2. 发明授权
    • Catalysts and processes for the polymerization of olefins
    • 催化剂和烯烃聚合方法
    • US06559252B1
    • 2003-05-06
    • US09331917
    • 1999-06-29
    • Andrew D. HortonJan F. van BaarPeter A. SchutGerard M. M. van KesselKlaas L. von Hebel
    • Andrew D. HortonJan F. van BaarPeter A. SchutGerard M. M. van KesselKlaas L. von Hebel
    • C08F4642
    • C08F10/00C08F4/65927C08F110/02C08F4/65912
    • Catalysts for the polymerization of olefins are disclosed, which comprise the product obtained by contacting: (A) a bridged and/or substituted cyclopentadienyl compound of titanium, zirconium or hafnium; (B) an organometallic aluminium compound of the formula: Al(CH2—CR4R5—CR6R7R8)wR9qHz wherein R4 is a C1-C10 alkyl, alkenyl, or arylalkyl group; R5 is hydrogen or a C1-C10 alkyl, alkenyl, or arylalkyl group; R6 and R7 are C1-C10 alkyl, alkenyl, aryl, arylalkyl or alkylaryl groups; R8 is hydrogen or a C1-C10 alkyl, alkenyl, aryl, arylalkyl or alkylaryl group; R9 is a C1-C10 alkyl, alkenyl, or arylalkyl group, a carbon atom in the compound of formula (II) being optionally replaced by a Si or Ge atom; w is 1-3, z is 0 or 1, q=3−w−z, and (C) water; the molar ratio (B)/(C) being comprised between 1:1 and 100:1. These catalysts show an improved activity with respect to known catalysts, wherein different aluminium compounds are used.
    • 公开了用于烯烃聚合的催化剂,其包括通过使(A)钛,锆或铪的桥连和/或取代的环戊二烯基化合物接触而获得的产物; (B)下式的有机金属铝化合物:Al(CH2-CR4R5-CR6R7R8)wR9qHz其中R4是C1-C10烷基,烯基或芳基烷基; R5是氢或C1-C10烷基,烯基或芳基烷基; R6和R7是C1-C10烷基,烯基,芳基,芳基烷基或烷基芳基; R8是氢或C1-C10烷基,烯基,芳基,芳基烷基或烷基芳基; R9是C1-C10烷基,烯基或芳基烷基,式(II)化合物中的碳原子任选被Si或Ge原子取代; w为1-3,z为0或1,q = 3-w-z,(C)水; 摩尔比(B)/(C)为1:1至100:1。 这些催化剂相对于已知的催化剂显示出改进的活性,其中使用不同的铝化合物。