Alpha-olefin polymerization catalyst system which contains...

Details Alpha-olefin polymerization catalyst system which contains... Alpha-olefin polymerization catalyst system which contains...

2006-03-07

2006-03-07

Barts, Samuel (Department: 1621)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C556S465000

Reexamination Certificate

active

07009015

ABSTRACT:
Aromatic silane compounds containing at least an aromatic ring bound directly to the silicon atom, wherein the aromatic ring has at least one substituent located in the ortho position selected from C1-10hydrocarbon groups, are useful as electron donors in olefin polymerization catalysts for the production of polyolefins having a stereoblock content of from about 7 to about 25%.

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