Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymerizing in tubular or loop reactor
Reexamination Certificate
2005-06-20
2010-12-28
Choi, Ling-Siu (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymerizing in tubular or loop reactor
Reexamination Certificate
active
07858714
ABSTRACT:
This invention is directed to processes of making polymer in the presence of a fluorinated hydrocarbon and recovering the polymer. The processes provided enable polymerization processes to be practiced with minimal fouling in the reaction system, and allows for the recovery of the fluorinated hydrocarbon and other hydrocarbons such as hydrocarbons for reuse in the process or hydrocarbon by-products from the polymerization process. The invention is particularly beneficial in the production of propylene based polymers using Ziegler Natta catalyst systems.
REFERENCES:
patent: 2534698 (1950-12-01), Calfee et al.
patent: 3056771 (1962-10-01), Aldridge et al.
patent: 3470143 (1969-09-01), Schrage et al.
patent: 4232140 (1980-11-01), Ort
patent: 4510342 (1985-04-01), Currie et al.
patent: 5624878 (1997-04-01), Devore et al.
patent: 5728641 (1998-03-01), Aida et al.
patent: 5780565 (1998-07-01), Clough et al.
patent: 7449530 (2008-11-01), Hagerty et al.
patent: 2003/0027952 (2003-02-01), Farrer et al.
patent: 1 334 276 (2002-02-01), None
patent: 1 323 746 (2003-07-01), None
patent: 61007301 (1986-01-01), None
patent: WO92/12182 (1992-07-01), None
patent: WO00/75202 (2000-12-01), None
patent: WO02/053607 (2002-07-01), None
patent: WO03/010211 (2003-02-01), None
patent: WO2004/026921 (2004-04-01), None
patent: WO2005/113610 (2005-12-01), None
patent: WO2005/113615 (2005-12-01), None
patent: WO2006/002132 (2006-01-01), None
patent: WO2006/009942 (2006-01-01), None
patent: WO2006/009944 (2006-01-01), None
patent: WO2006/009945 (2006-01-01), None
patent: WO2006/009946 (2006-01-01), None
patent: WO2006/009949 (2006-01-01), None
patent: WO2006/009951 (2006-01-01), None
patent: WO2006/009976 (2006-01-01), None
patent: WO2006/009977 (2006-01-01), None
patent: WO2006/009979 (2006-01-01), None
patent: WO2006/009980 (2006-01-01), None
patent: WO2006/009981 (2006-01-01), None
patent: WO2006/019494 (2006-02-01), None
patent: WO2006/025917 (2006-03-01), None
patent: WO2006/028549 (2006-03-01), None
patent: WO2006/083303 (2006-08-01), None
U.S. Appl. No. 11/285,264, Nov. 22, 2005, Iaccino et al.
“A study of halocarbon promoter influence on catalyst reactivity and polymer Mn in vanadium-based ethylene polymerizations,” Reinking, M. K. et al., Applied Catalysis A: General, Elsevier Science, Amsterdam, NL, vol. 189, No. 1, Nov. 22, 1999, 23-34, XP004272041.
Chee Chia S.
Hagerty Robert O.
Jiang Peijun
Laird Randall B.
Risch Michael A.
Choi Ling-Siu
ExxonMobil Chemical Patents Inc.
Wright Sonya
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