Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2005-02-22
2005-02-22
Teskin, Fred (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C526S083000, C526S088000, C526S901000
Reexamination Certificate
active
06858684
ABSTRACT:
This invention relates to processes for transitioning among polymerization catalyst systems, preferably catalyst systems, which are incompatible with each other. Particularly, the invention relates to processes for transitioning among olefin polymerization reactions utilizing Ziegler-Natta catalyst systems, metallocene catalyst systems and chromium-based catalyst systems.
REFERENCES:
patent: 4306044 (1981-12-01), Charsley
patent: 4460755 (1984-07-01), Williams et al.
patent: 4701489 (1987-10-01), Hughes et al.
patent: 4834947 (1989-05-01), Cook et al.
patent: 5227438 (1993-07-01), Rebhan
patent: 5270408 (1993-12-01), Craddock, III et al.
patent: 5371053 (1994-12-01), Agapiou et al.
patent: 5442019 (1995-08-01), Agapiou et al.
patent: 5672665 (1997-09-01), Agapiou et al.
patent: 5672666 (1997-09-01), Muhle et al.
patent: 5753786 (1998-05-01), Agapiou et al.
patent: 6359084 (2002-03-01), Herzog et al.
patent: 6388027 (2002-05-01), Zilker et al.
patent: 0116917 (1984-08-01), None
patent: 0471479 (1992-02-01), None
patent: 0811638 (1997-12-01), None
patent: 0829491 (1998-03-01), None
patent: WO 9214766 (1992-09-01), None
patent: WO 9830599 (1998-07-01), None
Burdett Ian D.
Cai Ping P.
Eisinger Ronald Steven
Goode Mark Gregory
Hussein F. David
Teskin Fred
Univation Technologies LLC
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