Method for reducing sheeting and agglomerates during olefin...

Details Method for reducing sheeting and agglomerates during olefin... Method for reducing sheeting and agglomerates during olefin...

2004-12-20

2010-10-12

Cheung, William K (Department: 1796)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S074000, C526S348000

Reexamination Certificate

active

07812103

ABSTRACT:
The present invention relates to a method for reducing/suppressing sheeting or agglomerates during polymerization of olefins, especially during the fluidized bed gas phase polymerization of olefins. In particular, the present invention relates to a method for reducing/suppressing sheeting or agglomerates during the product grade transition and/or catalyst transitions occurring polymerization of olefins.

REFERENCES:
patent: 0848 021 (1998-06-01), None
patent: 1 016 455 (2000-07-01), None
patent: WO 96/39450 (1996-12-01), None
patent: WO 99/02573 (1999-01-01), None
patent: WO 99/03901 (1999-01-01), None
patent: WO 9902573 (1999-01-01), None

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