Slurry phase polymerisation process

Details Slurry phase polymerisation process Slurry phase polymerisation process

2011-07-19

2011-07-19

Teskin, Fred M (Department: 1762)

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

Synthetic resins

Polymerizing in tubular or loop reactor

C526S065000, C526S909000, C525S052000

Reexamination Certificate

active

07981983

ABSTRACT:
A process for controlling a slurry phase (co-) polymerisation process in the presence of a polymerisation catalyst, which comprises maintaining the density SPAN of the polymer powder particles (defined as the absolute value of the density difference in g/cm3between the average density of the polymer particles exiting the reactor with particle size above D90 and the average density of the material with particle size below D10) below 0.005, preferably below 0.003, more preferably below 0.0026, most preferably below 0.0023.

REFERENCES:
patent: 3229754 (1966-01-01), Hoag
patent: 3279087 (1966-10-01), Hearne et al
patent: 3405109 (1968-10-01), Rohlfing
patent: 6664352 (2003-12-01), Fredriksen et al.
patent: 7718732 (2010-05-01), Lee et al.
patent: 2003/0191251 (2003-10-01), McGrath
patent: 2005/0272891 (2005-12-01), Fouarge et al.
patent: 0891990 (1999-11-01), None
patent: 0426057.6 (2004-11-01), None
patent: 0426058.4 (2004-11-01), None
patent: 0426059.2 (2004-11-01), None
patent: WO 92/12181 (1992-07-01), None
patent: WO 92/12182 (1992-07-01), None
patent: WO 02/28922 (2002-04-01), None
patent: WO 03/044064 (2003-05-01), None
patent: WO 03/070365 (2003-08-01), None
patent: WO 03/074167 (2003-09-01), None
patent: WO 2004/024780 (2004-03-01), None
patent: WO 2004/024781 (2004-03-01), None
patent: WO 2005/044871 (2005-05-01), None
patent: WO 2005/082962 (2005-09-01), None
patent: WO 2006/003144 (2006-01-01), None
patent: WO 2006/026493 (2006-03-01), None
patent: WO 2006/056756 (2006-06-01), None
patent: WO 2006/056761 (2006-06-01), None
patent: WO 2006/056763 (2006-06-01), None
PCT International Preliminary Examination Report; International Application No. PCT/EP2007/001862; International Filing Date May 18, 2007 (7 pgs).
Abulnaga, Baha E.; “Slurry Systems Handbook”;The McGraw-Hill Companies; pp. 4.5-4.9 (2002) (Total-D11).
Abstract, Process Economics Program Report 19E; “Biomodal Linear Low-Density Polyethylene”, 137 pgs (Nov. 1999).
Abstract, Process Economics Program Report 19F; “Supercritical Loop Reactor Slurry Process for Producing Polyethylene and Polypropylene”, 134 pgs (Jun. 1996).
Abstract, Process Economics Program Report No. 19C; “High Density Polyethylene”, 300 pgs.
Magovern, Robert L.; Process Economics Program; Report No. 19; “Linear Polyethylene and Polypropylene”, 350 pgs (Nov. 1966).
Magovern, Robert L.; Process Economics Program; Report No. 19-A; “Linear Polyethylene and Polypropylene Supplement A”, 222 pgs (Oct. 1969).
Magovern, Robert L.; Process Economics Program; Report No. 19B; “Linear Polyethylene and Polypropylene Supplement B”; 169 pgs (Feb. 1974).
Notice of Opposition to European Patent No. EP1814921, Appln. No. EP05804321.7, date of mention of the grant in the European Patent Bulletin Jan. 20, 2010; Opponent—Chevron Phillips Chemical Company LP (CPCC) 27 pgs.
Notice of Opposition to European Patent No. EP 1814921, Appln. No. EP05804321.7, date of mention of the grant in the European Patent Bulletin Jan. 20, 2010, Opponent—Total Petrochemicals Research Feluy (Total) 16 pgs.
Notice of Opposition to European Patent No. EP 1827677, Appln. No. EP05804330.8, date of mention of the grant in the European Patent Bulletin Jan. 27, 2010, Opponent—Chevron Phillips Chemical Company LP (CPCC) 32 pgs.
Notice of Opposition to European Patent No. EP 1827677, Appln. No. EP05804330.8, date of mention of the grant in the European Patent Bulletin Jan. 27, 2010, Opponent—Borealis AG (Borealis) 19 pgs.
Notice of Opposition to European Patent No. EP 1827677, Appln. No. EP05804330.8, date of mention of the grant in the European Patent Bulletin Jan. 27, 2010, Opponent—Total Petrochemicals Research Feluy (Total) 15 pgs.
The Concise Oxford Dictionary, First edited by H.W. Fowler and F.G. Fowler, Ninth Edition, 4 pgs (1996) (CPCC-D1).
Magovern, Robert L.; Process Economics Program; Report No. 19-A; “Linear Polyethylene and Polypropylene Supplement A”; 14 pgs (Oct. 1969) (CPCC-D3A).
Chadwick, John L., et al; Process Economics Program; Report No. 19C; “High Density Polyethylene Supplement C”; 24 pgs (1979) (CPCC-D4A).
Ferrero, Monica A., et al; “Preliminary Design of a Loop Reactor for Bulk Propylene Polymerization”;Polymer-Plastics Technology and Engineering; vol. 29, No. 3; pp. 263-287 (1990) (CPCC-D10).
Declaration of Donald W. Verser; 2 pgs (Oct. 13, 2010) (CPCC DEC).
Canjar, Lawerence, N., et al; “Thermodynamic Properties and Reduced Correlations for Gases”;Gulf Publishing Company; 1 pg (1967) (Borealis-D5).
Vieweg, Richard, et al; “Kunststoff-Handbuch Band IV Polyolefine”;Carl Hanser Verlag Munchen, (1969) (Borealis-D6).
Chem Systems, Inc. “High-Density Polyethylene”; Report No. 80-5; 39 pgs (1981) (Borealis-D10).
Perry, Robert H., et al; “Perry's Chemical Engineers' Handbook Seventh Edition”; 6 pgs (1997) (Borealis-D12).
Lylykangas; “Calculations to Estimate the Density of Mixtures of Propane, Ethylene and Hydrogen”; 4 pgs. (Borealis-D14).
Slurry Systems Handbook; (Total-D11), (2002).
Chandrasekhar, V., et al; “Recent Developments in Ziegler-Natta Catalysts for Olefin Polymerization and Their Processes”;Indian Journal of Technology; vol. 26, pp. 53-82 (1988) (Borealis-D2).

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