Michael E Krause

US Patent:

54985820, Mar 12, 1996

Filed:

Dec 6, 1993

Appl. No.:

8/161849

Inventors:

Michael J. Krause - Milltown NJ
Frederick Y. Lo - Edison NJ
Steven M. Chranowski - Friendswood TX

Assignee:

Mobil Oil Corporation - Fairfax VA

International Classification:

B01J 3114
B01J 3702

US Classification:

502103

Abstract:

A catalyst precursor is formed by providing in slurry: (1) a carrier, which is porous and in the form of particles, or spheres, preferably particles of a crosslinked polymer, having a particle diameter of about 1 to about 300 microns, a porosity of about 0. 001 to about 10 cc/gm, and a surface area of about 1 to about 1,000 m. sup. 2 /gm; (2) a metallocene complex having an empirical formula Cp. sub. m MA. sub. n B. sub. p in which Cp is an unsubstituted or substituted cyclopentadienyl group, M is zirconium, titanium, or hafnium; m is 1, 2, or 3 and each of A and B is a halogen atom, hydrogen or an alkyl group, and (3) an anion forming reagent comprising either a borate complex or a borane. An alkyl aluminum compound is used in conjunction with the catalyst as either a cocatalyst or an impurity scavenger.

US Patent:

54552141, Oct 3, 1995

Filed:

Sep 9, 1993

Appl. No.:

8/118338

Inventors:

Allan B. Furtek - Warren NJ
Michael J. Krause - East Brunswick NJ

Assignee:

Mobil Oil Corporation - Fairfax VA

International Classification:

B01J 3100

US Classification:

502109

Abstract:

A catalyst precursor composition comprises the reaction product of a cation exchange resin containing trityl carbonium ions contacted with a metallocene. The process of producing the reaction product of a cation exchange resin containing trityl carbonium ions contacted with a metallocene comprises (1) providing a cation exchange resin which has cations, (2) contacting the cation exchange resin with a solution comprising a trityl halide complex and solvent therefor to form an intermediate; and (3) contacting the intermediate with a metallocene, preferably a zirconocene salt. The resulting composition can be used to form ethylene resins in an alumoxane free system.

US Patent:

20160030871, Feb 4, 2016

Filed:

Aug 4, 2014

Appl. No.:

14/451392

Inventors:

- Riverdale NJ, US
Michael T. KRAUSE - Plainfield NJ, US

International Classification:

B01D 46/00
B01D 46/30
B01D 53/04

Abstract:

An air filtration system that comprises a filter assembly having a magnetic seal mounted in a holding frame. The magnetic seal is disposed between the filter assembly and the holding frame to prevent air from bypassing a filter media of the filter assembly. The magnetic seal is disposed between an outer shoulder of a filter frame of the filter assembly and an inner shoulder of the holding frame.