Methods of preparing a polymerization catalyst

Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Boron or compound containing same

Reexamination Certificate

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C502S102000, C502S103000, C502S104000, C502S117000, C502S204000, C502S415000

Reexamination Certificate

active

07638456

ABSTRACT:
A method comprising contacting a support with one or more chromium-containing compounds and one or more boria precursors to provide a catalyst precursor, and activating the catalyst precursor to provide a polymerization catalyst.

REFERENCES:
patent: 3248179 (1966-04-01), Norwood
patent: 3620981 (1971-11-01), Magoon et al.
patent: 3976632 (1976-08-01), Delap
patent: 4118340 (1978-10-01), Rekers
patent: 4194074 (1980-03-01), Pullukat et al.
patent: 4303770 (1981-12-01), Pullukat et al.
patent: 4310440 (1982-01-01), Wilson et al.
patent: 4501885 (1985-02-01), Sherk et al.
patent: 4544791 (1985-10-01), Juguin et al.
patent: 4588790 (1986-05-01), Jenkins, III et al.
patent: 5155186 (1992-10-01), Hogan et al.
patent: 5352749 (1994-10-01), DeChellis et al.
patent: 5436304 (1995-07-01), Griffin et al.
patent: 5455314 (1995-10-01), Burns et al.
patent: 5565175 (1996-10-01), Hottovy et al.
patent: 5575979 (1996-11-01), Hanson
patent: 6165929 (2000-12-01), McDaniel et al.
patent: 6239235 (2001-05-01), Hottovy et al.
patent: 6262191 (2001-07-01), Hottovy et al.
patent: 6280610 (2001-08-01), Uragami et al.
patent: 6667274 (2003-12-01), Hawley et al.
patent: 6833415 (2004-12-01), Kendrick et al.
patent: 6867278 (2005-03-01), McDaniel et al.
patent: 7012038 (2006-03-01), Alerasool et al.
patent: 7214642 (2007-05-01), McDaniel et al.
patent: 2005/0020437 (2005-01-01), Winkler et al.
patent: 06210182 (1994-08-01), None
Bird, R. Byron, et al., “Dynamics of polymeric liquids; vol. 1: fluid mechanics,” 1987, pp. xiii-xviii, 171-172, and 2 publishing pages, John Wiley & Sons, Inc., USA.
Hieber, C. A., et al., “Shear-rate-dependence modeling of polymer melt viscosity,” Jul. 1992, pp. 931-938, vol. 32, No. 14, Polymer Engineering and Science.
Hieber, C. A., et al., “Some correlations involving the shear viscosity of polystyrene melts,” 1989, pp. 321-332, vol. 28, No. 4, Rheologica Acta.
McDaniel, M. P., et al., “Long chain branching in polyethylene from the Phillips chromium catalyst,” Phillips Research Center, Bartlesville, Oklahoma, USA, 40 pages.
Yamaguchi, Kazuo, et al., “Polymerization catalysts of olefins,” CAPLUS abstract of Japanese patent 48007075B4 published on Jan. 29, 1973, 1 page, ACS on SciFinder (2007).

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