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    • 9. 发明授权
    • Hydrogen response Ziegler-Natta catalyst for narrowing MWD of polyolefin, method of making, method of using, and polyolefins made therewith
    • 用于使聚烯烃的MWD变窄的齐格勒 - 纳塔催化剂,制造方法,使用方法和由此制成的聚烯烃
    • US06486274B1
    • 2002-11-26
    • US09687688
    • 2000-10-13
    • Steven D. GrayTim J. Coffy
    • Steven D. GrayTim J. Coffy
    • C08F4614
    • C08F10/00C08F4/6567C08F4/6557
    • A Ziegler-Natta type catalyst having an improved hydrogen response provides for narrowing of the MWD of resulting polyolefins polymerized using such catalyst, with such catalyst generally made by a) contacting a soluble magnesium dialkoxide compound of the general formula Mg(OR″)2 with a halogenating agent capable of exchanging one halogen for one alkoxide to form a reaction product A, where R″ is a hydrocarbyl or substituted hydrocarbyl having from 1 to 20 carbon atoms; b) contacting reaction product A with a first halogenating/titanating agent to form reaction product B; and c) contacting reaction product B with a second halogenating/titanating agent to form a catalyst component; wherein in at least one of steps b) and c), the halogenating/titanating agent is a blend of Ti(OPr)4 and TiCl4. Catalyst components, catalysts, catalyst systems, polyolefin polymers, and methods of forming each are disclosed.
    • 具有改善的氢气响应的齐格勒 - 纳塔型催化剂使得使用这种催化剂聚合的所得聚烯烃的MWD变窄,通常用以下方法制备的催化剂:a)使通式Mg(OR“)2的可溶性二烷氧基镁化合物 与一种能够与一个卤素交换一个醇盐形成反应产物A的卤化剂,其中R“是具有1至20个碳原子的烃基或取代的烃基; b)使反应产物A与第一卤化/钛化剂接触以形成反应产物B; 和c)使反应产物B与第二卤化/钛化剂接触以形成催化剂组分; 其中在步骤b)和c)中的至少一个中,卤化/钛化剂是Ti(OPr)4和TiCl 4的共混物。 公开了催化剂组分,催化剂,催化剂体系,聚烯烃聚合物和各种形成方法。