Process for the gas-phase (co-)polymerization of olefins in...

Details Process for the gas-phase (co-)polymerization of olefins in... Process for the gas-phase (co-)polymerization of olefins in...

2005-09-20

2005-09-20

Cheung, William K. (Department: 1713)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S217000, C526S219500, C526S227000, C526S237000, C526S348000, C526S901000

Reexamination Certificate

active

06946530

ABSTRACT:
The present invention relates to a process for the gas-phase (co-)polymerization of olefins in a fluidized bed reactor wherein fouling is prevented and/or flowability of polymer is improved thanks to the use of a process aid additive.

REFERENCES:
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patent: 5283278 (1994-02-01), Daire et al.
patent: 6022935 (2000-02-01), Fischer et al.
patent: 6096840 (2000-08-01), Bernier et al.
patent: 198 35 467 (2000-02-01), None
patent: 0 636 636 (1995-02-01), None
patent: 1 061 090 (2000-12-01), None
patent: WO 99/61486 (1999-12-01), None
patent: WO 00/02930 (2000-01-01), None

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