Catalyst composition and a process for preparing linear,...

Details Catalyst composition and a process for preparing linear,... Catalyst composition and a process for preparing linear,...

2005-06-21

2005-06-21

Lu, Caixia (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S160000, C526S348000, C526S351000, C526S943000, C502S103000, C502S152000

Reexamination Certificate

active

06908974

ABSTRACT:
The invention concerns a metallocene catalyst composition for preparing linear isotactic polymers, wherein said catalyst composition contains a metal complex and an activator. The invention also concerns a process for preparing linear, isotactic polymers which have a structure of which the tacticity varies within the range of between 25 and 60 % of [mmmm] pentad concentration, an arbitrary or rather regular sequence of isotactic and atactic blocks being excluded, in which process a C2to C20olefin is reacted with the catalyst composition.

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