Silicon ether compounds and a method for the preparation...

Details Silicon ether compounds and a method for the preparation... Silicon ether compounds and a method for the preparation...

2005-02-16

2008-07-15

Choi, Ling-Siu (Department: 1796)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S124200, C526S124300, C526S351000, C526S348000, C526S124600, C502S103000, C502S115000, C502S118000

Reexamination Certificate

active

07399812

ABSTRACT:
The present invention relates to silicon ether compounds having a general formula (I), a method for the preparation thereof and use thereof as a component of catalysts for polymerization of olefins. In particular, in propylene polymerization, catalyst systems comprising the silicon ether compounds as external electron donor component exhibit good hydrogen response, and can be used to prepare polymer having high isotacticity at high yield.wherein R1-R10groups are as defined in the description.

REFERENCES:
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Hua et al., Chinese Chemical Letters, vol. 15(12), 1430-1432(2004).
Diekman et al., the Journal of Organic Chemistry, vol. 33(6), 2271-2284(1968).

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