Inventor

DIEFENBACH STEVEN P

US39 patents

⚠️ This page may combine multiple inventors who share the name “DIEFENBACH STEVEN P”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

DIEFENBACH STEVEN P

ALBEMARLE CORP

Haloaluminoxane compositions, their preparation, and their use in catalysis

Particulate group 4 metallocene-aluminoxane catalyst compositions devoid of preformed support, and their preparation and their use

Use of heat treated alumoxanes in preparing supported catalysts

Preparation of pentafluorophenyl compounds

Aluminoxane catalyst activators derived from dialkylaluminum cation precursor agents, processes for making same, and use thereof in catalysts and polymerization of olefins

Heat treated alumoxanes

Catalyst activators, processes for making same, and use thereof in catalysts and polymerization of olefins

Haloaluminoxane compositions, their preparation, and their use in catalysis

Particulate group 4 metallocene-aluminoxane catalyst compositions devoid of preformed support, and their preparation and their use

Particulate group 4 metallocene-aluminoxane catalyst compositions devoid of preformed support, and their preparation and their use

Process for preparing pentafluorophenyl compounds

Clean generation of a fluoroaryl grignard reagent

Clean generation of a perfluoroaryl grignard reagent

Aluminoxane compositions, their preparation, and their use in catalysis

Process for the purification of pentafluorophenyl boron compounds

Process for upgrading metallocene catalysts

Catalyst activators, processes for making same, and use thereof in catalysts and polymerization of olefins

Catalyst activators, processes for making same, and use thereof in catalysts and polymerization of olefins

Preparation of supported auxiliary catalysts at elevated temperature and pressure in a closed vessel

Process of producing self-supported catalysts

Particulate group 4 metallocene-aluminoxane catalyst compositions devoid of preformed support, and their preparation and their use

Particulate group 4 metallocene-aluminoxane catalyst compositions devoid of preformed support, and their preparation and their use

ETHYL CORP

Preparation of metallocenes

Nickel catalyzed displacement reaction

Aluminum alkyls and linear 1-olefins from internal olefins

Process for preparing metallocenes

Method of making aluminum alkyls

Method of making aluminum alkyls

Metathesis of acetylenes

Dirhenium metathesis catalysts

Method of making aluminum alkyls

Aluminum alkyls and linear 1-olefins from internal olefins

Metathesis of acetylenes

Method of producing polysilane compounds

LUO LUBIN

Aluminoxane catalyst activators derived from dialkylaluminum cation precursor agents, processes for making same, and use thereof in catalysts and polymerization of olefins

Aluminoxane catalyst activators containing carbocation agents, and use thereof in polyolefin catalysts

Catalyst activators, processes for making same, and use thereof in catalysts and polymerization of olefins

Ionic bronsted acid

GRACE W R & CO

Activator compositions, their preparation, and their use in catalysts