Supercritical polymerization process and polymers produced...

Details Supercritical polymerization process and polymers produced... Supercritical polymerization process and polymers produced...

2008-01-15

2008-01-15

Rabago, Roberto (Department: 1713)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S064000, C526S073000, C526S129000, C526S134000, C526S160000, C526S170000, C526S351000, C526S943000

Reexamination Certificate

active

07319125

ABSTRACT:
This invention relates to a process to produce propylene polymers comprising contacting a metallocene catalyst compound and an activator in a reaction medium comprising propylene, from 0 to 30 volume % of one or more solvents and from 0 to 30 mole % of one or more comonomers, under temperature and pressure conditions below the melting point of the propylene polymer and where:a) the temperature is at or above the critical temperature for the reaction medium, and the pressure is at least 500 kPa above the critical pressure of the reaction medium; orb) the temperature is 1° C. or more above the critical temperature for the reaction medium, and the pressure is at or above the critical pressure of the reaction medium; orc) the temperature is 1° C. or more above the critical temperature for the reaction medium, and the pressure is at least 500 kPa above the critical pressure of the reaction medium.

REFERENCES:
patent: 2153553 (1939-04-01), Fawcett et al.
patent: 2852501 (1958-09-01), Richard, Jr. et al.
patent: 3294772 (1966-12-01), Cottle
patent: 3725378 (1973-04-01), Chamberlin
patent: 4135044 (1979-01-01), Beals
patent: 4153774 (1979-05-01), Boettcher et al.
patent: 4530914 (1985-07-01), Ewen et al.
patent: 4794004 (1988-12-01), Pfleger et al.
patent: 4962262 (1990-10-01), Winter et al.
patent: 5026798 (1991-06-01), Canich
patent: 5081322 (1992-01-01), Winter et al.
patent: 5084534 (1992-01-01), Welborn, Jr. et al.
patent: 5096867 (1992-03-01), Canich
patent: 5272236 (1993-12-01), Lai et al.
patent: 5324799 (1994-06-01), Yano et al.
patent: 5324800 (1994-06-01), Welborn, Jr. et al.
patent: 5326835 (1994-07-01), Ahvenainen et al.
patent: 5382630 (1995-01-01), Stehling et al.
patent: 5382631 (1995-01-01), Stehling et al.
patent: 5391654 (1995-02-01), Ahvenainen et al.
patent: 5408017 (1995-04-01), Turner et al.
patent: 5416153 (1995-05-01), Winter et al.
patent: 5652308 (1997-07-01), Merrill et al.
patent: 5693730 (1997-12-01), Kuber et al.
patent: 5723560 (1998-03-01), Canich
patent: 5723705 (1998-03-01), Herrmann et al.
patent: 5756608 (1998-05-01), Langhauser et al.
patent: 5840644 (1998-11-01), Kuber et al.
patent: 5866663 (1999-02-01), Brookhart et al.
patent: 5882750 (1999-03-01), Mink et al.
patent: 5936053 (1999-08-01), Fukuoka et al.
patent: 5962719 (1999-10-01), Winter et al.
patent: 5965674 (1999-10-01), Moen et al.
patent: 5969062 (1999-10-01), Moll et al.
patent: 5998547 (1999-12-01), Hohner
patent: 6084041 (2000-07-01), Andtsjo et al.
patent: 6124231 (2000-09-01), Fritze et al.
patent: 6143682 (2000-11-01), Fisher
patent: 6160072 (2000-12-01), Ewen
patent: 6218488 (2001-04-01), Schiffino et al.
patent: 6225432 (2001-05-01), Weng et al.
patent: 6300451 (2001-10-01), Mehta et al.
patent: 6355741 (2002-03-01), Marechal
patent: 6562914 (2003-05-01), Andtsjo et al.
patent: 2002/0012344 (2002-01-01), Agarwal et al.
patent: 2004/0127654 (2004-07-01), Brandt et al.
patent: 2 118 711 (1993-03-01), None
patent: 2 103 694 (1994-02-01), None
patent: 41 30 299 (1993-03-01), None
patent: 0 480 190 (1992-04-01), None
patent: 0 603 232 (1992-09-01), None
patent: 0 846 696 (1998-06-01), None
patent: 0 887 380 (1998-12-01), None
patent: 0 987 279 (2000-03-01), None
patent: 0 129 368 (2002-04-01), None
patent: 1 195 391 (2002-04-01), None
patent: 1 008 607 (2003-12-01), None
patent: 0-216916 (1997-09-01), None
patent: 96-208535 (1998-02-01), None
patent: 342 1202 (1998-04-01), None
patent: 1998-110003 (1998-04-01), None
patent: WO 88/04672 (1988-06-01), None
patent: WO 92/14766 (1992-09-01), None
patent: WO 93/05082 (1993-06-01), None
patent: WO 93/11171 (1993-06-01), None
patent: WO 94/14856 (1994-07-01), None
patent: WO 96/00246 (1996-01-01), None
patent: WO 96/12744 (1996-05-01), None
patent: WO 96/34023 (1996-10-01), None
patent: WO 97/11098 (1997-03-01), None
patent: WO 97/13790 (1997-04-01), None
patent: 97/48737 (1997-12-01), None
patent: WO 97/45434 (1997-12-01), None
patent: WO 98/33823 (1998-08-01), None
patent: WO 99/02540 (1999-01-01), None
patent: WO 99/29749 (1999-06-01), None
patent: WO 99/32226 (1999-07-01), None
patent: WO 00/12572 (2000-03-01), None
patent: WO 00/37514 (2000-06-01), None
patent: WO 00/40625 (2000-07-01), None
patent: WO 00/50475 (2000-08-01), None
patent: WO 00/64952 (2000-11-01), None
patent: WO 01/44318 (2001-06-01), None
patent: WO 01/46273 (2001-06-01), None
patent: WO 02/50145 (2002-06-01), None
patent: WO 02/070572 (2002-09-01), None
patent: WO 02/090399 (2002-11-01), None
Walther et al., “Metallocene-catalyzed polymerization in supercritical propylene,” 4thInternational Symposium on High Pressure Process Technology and Chemical Engineering, Venice, Italy, Sep. 22-25, 2002.
Walther, et al., “Metallocene-Catalyzed Polymerisation in Supercritical Propylene”, Sep. 22-25, 2002 Venice-Italy, High Pressure in Venice, 4th International Symposium on High Pressure Process Technology and Chemical Engineering.
Abstract, P. Lehmus et al., “Metallocene-PP produced under supercritical polymerization conditions”, and list of posters, 1st BlueSky Conference on Catalytic Olefin Polymerization, Jun. 17-20, 2002, Sorrento, Italy.
Abstract, Borealis publications, Lofgren et al., “Metallocene-PP produced under supercritical conditions”, 1st BlueSky Conference on Catalytic Olefin Polymerization, Jun. 17-20, 2002, Sorrento, Italy (2002).
Abstract, Zowade et al., PL 159518, “Manufacturing Low-molecular-weight Isotactic Polypropylene”, Sep. 1, 1989.
Alt, H.G. et al., “Effect of the Nature of Metallocene Complexes of Group IV Metals on Their Performance in Catalytic Ethylene and Propylene Polymerization”, Chem. Rev. 100, 2000, pp. 1205-1221.
Akimoto, A., et al., “New Developments in the Production of Metallocene LLDPE by High Pressure Polymerization”, Tosoh Corp., Metallocene-Based Polyolefins 2000 (conference proceedings), pp. 287-308 (John Wiley & Sons Ltd.).
Barnhart, R.W.et al., “Synthesis of Branched Polyolefins Using a Combination of Homogeneous Metallocene Mimics”, J. Am. Chem. Soc. 1998, vol. 120, pp. 1082-1083.
Bergemann, C., R. et al., “Copolymerization of Ethylene and 1,5-hexadiene under High Pressure Catalyzed by a Metallocene”, J. Mol. Catal. A: Chemical 116, 1997, pp. 317-322 (Elsevier).
Bergemann, C., R. et al., “Copolymerization of Ethylene and Linear α-Olefins with a Metallocene Catalyst System under High Pressure, Part II. Comparison of Propene, 1-Butene, 1-Hexene, and 1-Decene”, J. Mol. Catal. A: Chemical 105, 1996, pp. 87-91.
Britovsek, G.J.P. et al., “The Search for New-Generation Olefin Polymerization Catalysts: Life Beyond Metallocenes”, Chemie Intl. Edn., 1999, vol. 38, pp. 428-447.
Bujadoux, G.K., “Use of Bridged and Non-Bridged Metallocene Catalysts in High Pressure/High Temperature Ethylene/α-Olefin Copolymerization”, Metallocenes 95 Intl. Congr, Metallocene Polym. 1995, pp. 375-402, Schotland Bus. Rsrch. Publ.
Chen, E. Y-X. et al., “Cocatalysts for Metal-Catalyzed Olefin Polymerization: Activators, Activation Processes, and Structure-Activity Relationships”, Chem. Rev. 2000, vol. 100, pp. 1391-1434.
Coates, G.W., “Precise Control of Polyolefin Stereochemistry Using Single Site Metal Catalysts”, Chem. Rev. 100, 2000, pp. 1223-1252.
Cottom, W.P., “Waxes”, in Encyclo. Chem. Tech., vol. 25, pp. 614-626, Fourth edition, 1991.
Eckstein A. et al., “Determination of Plateau Moduli and Entanglement Molecular Weights of Isotactic, Syndiotactic, and Atactic Polypropylenes Synthesized with Metallocene Catalysts”, Macromolecules 31, 1998, pp. 1335-1340.
Ewen, J.A. et al., “Syndiospecific Propylene Polymerizations with Group 4 Metallocenes”, J. Am. Chem. Soc., 1988, vol. 110, pp. 6255-6256.
Gotz, C. et al., “MAO-Free Metallocene Based Catalysts in High Pressure Polymeriszation of Ethylene and 1-Hexene”, Chem. Eng. Technol., 21, 1998, pp. 954-957 (Wiley-VCH Verlag GmbH).
Hauptman, E.

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