1
Howard W Turner, Jo Ann M Canich, Bernard J Folie: High temperature polymerization process using ionic catalysts to produce polyolefins. Exxon Chemical Patents, M S Spiering, W G Muller, April 18, 1995: US05408017 (113 worldwide citation)

This invention relates to a process for polymerizing olefins at high pressures in a polymerization medium at high temperature utilizing an ionic olefin polymerization catalyst derived from the reaction of a cyclopentadienyl-containing transition metal compound having a hydrolyzable alkyl or hydride ...


2
Charles C Cozewith, Sudhin Datta, Bruce A Harrington, Bernard J Folie, John F Walzer Jr, Donna J Crowther: Method for making polymer blends by using series reactors. Exxon Mobil Chemical Patents, Anthony Chi, Stephen D Prodnuk, November 20, 2001: US06319998 (65 worldwide citation)

This invention relates to a method of making polymer blends using series reactors and a metallocene catalyst. Monomers used by the invention are ethylene, a higher alpha-olefin (propylene most preferred), and optionally, a non-conjugated diene (ethylidene norbornene, i.e., ENB, most preferred). More ...


3
Rinaldo S Schiffino, Donna J Crowther, Bernard J Folie, John F Walzer Jr: Polymerization process for olefin copolymers using bridged hafnocene compounds. Exxon Mobil Chemical Patents, William G Muller, Charles E Runyan, April 17, 2001: US06218488 (27 worldwide citation)

The invention is a polymerization process for ethylene copolymers having a density less than 0.915 comprising contacting ethylene, one or more &agr;-olefin monomer, and optionally one or more diene monomer, with a catalyst composition comprising the reaction product of at least one organometallic Gr ...


4
Bruce A Harrington, Charles C Cozewith, Sudhin Datta, Bernard J Folie, John F Walzer Jr, Donna J Crowther: Method for increasing diene conversion in EPDM type polymerizations. ExxonMobil Chemical Patents, Anthony Chi, Stephen D Prodnuk, December 11, 2001: US06329477 (16 worldwide citation)

This invention relates to a method of making polymer compositions, e.g. EPDM compositions, in a multistage reactor with monomers chosen from ethylene, C


5
Donna J Crowther, Bernard J Folie, John F Walzer Jr, Rinaldo S Schiffino: High temperature olefin polymerization process. ExxonMobil Chemical Patents, William G Muller, Stephen D Prodnuk, September 18, 2001: US06291609 (10 worldwide citation)

The invention is directed to olefin polymerization processes using bridged hafnocene catalyst complexes comprising highly substituted noncoordinating anions that are surprisingly stable under high temperature olefin polymerization processes such that olefin copolymers having significant amount of in ...


6
John F Walzer Jr, Donna J Crowther, Bernard J Folie: Noncoordinating anions for olefin polymerization. Univation Technologies, July 17, 2001: US06262202 (10 worldwide citation)

Bulky noncoordinating anions that are surprisingly stable under olefin polymerization conditions such that olefin polymers can be prepared with unexpectedly high molecular weights at high catalyst efficiencies. Thus the invention is directed to an olefin polymerization process comprising contacting ...


7
David T Henry, Doulgas J McLain, Joseph D Domine, Aspy Keki Mehta, William Joseph Zafian, Norbert Baron, Bernard J Folie: Process for producing polymers with multimodal molecular weight distributions. Exxon Chemical Patents, July 15, 1997: US05648438 (7 worldwide citation)

The invention provides a continuous process for catalytically polymerizing a monomer feed of ethylene and at least one comonomer which comprises introducing a catalyst including a bulky ancillary ligand transition metal compound and monomer feed in an upstream reaction zone for polymerization, intro ...


8
Donna J Crowther, Bernard J Folie, John F Walzer Jr, Rinaldo S Schiffino: High temperature olefin polymerization process. ExxonMobil Chemical Patents, Frank E Reid, Phillip G Woo, May 6, 2003: US06559253 (2 worldwide citation)

The invention is directed to olefin polymerization processes using bridged hafnocene catalyst complexes comprising highly substituted noncoordinating anions that are surprisingly stable under high temperature olefin polymerization processes such that olefin copolymers having significant amount of in ...


9
Donna J Crowther, Bernard J Folie, John F Walzer, Rinaldo S Schiffino: High temperature olefin polymerization process. ExxonMobil Chemical Company, January 17, 2002: US20020007025-A1

The invention is directed to olefin polymerization processes using bridged hafnocene catalyst complexes comprising highly substituted noncoordinating anions that are surprisingly stable under high temperature olefin polymerization processes such that olefin copolymers having significant amount of in ...