Propylene polymer catalyst donor component

Details Propylene polymer catalyst donor component Propylene polymer catalyst donor component

2006-03-01

2009-02-17

Sullivan, Daniel M (Department: 1621)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C560S001000

Reexamination Certificate

active

07491781

ABSTRACT:
A solid, hydrocarbon-insoluble, catalyst component useful in polymerizing olefins containing magnesium, titanium, and halogen further contains an internal electron donor comprising a compound containing electron donating substituents with a structure:wherein D1and D2are selected individually fromand R, R2, R3, R4, R5, R6, and R7individually are hydrocarbon or substituted hydrocarbon groups containing 1 to 20 carbon atoms and R2, R3, R4, R6, and R7may be hydrogen; R4may be —NR2; andwherein groups R1and R2, R2and R3, R3and R4, R3and R5, and groups R6and R7may be joined to form a cyclic structure.

REFERENCES:
patent: 7005487 (2006-02-01), Balbontin et al.
patent: 7253132 (2007-08-01), Nakayama et al.
patent: 2005/0239636 (2005-10-01), Gao et al.
patent: 2006/0287446 (2006-12-01), Gao et al.
patent: 2007/0021295 (2007-01-01), Morini et al.
patent: 1552741 (2004-12-01), None

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