Inventor

WITTNER CHRISTOPHER E

US27 patents

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

WITTNER CHRISTOPHER E

PHILLIPS PETROLEUM CO

Process for producing polymers

Polymerization catalysts

Organometal compound catalyst

Organometal catalyst compositions

Process for producing polymers using a composition comprising an organometal compound, a treated solid oxide compound, and an organoaluminum compound

Compositions that can produce polymers

Compositions that can produce polymers

Organometal compound catalyst

Organometal compound catalyst

Polymerization catalysts

Organometal compound catalyst

Propylene polymerization process

CHEVRON PHILLIPS CHEMICAL CO LP

Dual catalyst system for producing LLDPE and MDPE copolymers with long chain branching for film applications

Dual catalyst system for producing LLDPE and MDPE copolymers with long chain branching for film applications

Dual catalyst system for producing LLDPE and MDPE copolymers with long chain branching for film applications

Aqueous methods for titanating a chromium/silica catalyst with an alkali metal

Aqueous methods for titanating a chromium/silica catalyst with an alkali metal

Aqueous methods for titanating a chromium/silica catalyst with an alkali metal

Aqueous methods for titanating a chromium/silica catalyst with an alkali metal

CHEVRON PHILLIPS CHEMICAL CO

Compositions that can produce polymers

Compositions that can produce polymers

Organometal compound catalyst

Catalyst systems containing a bridged metallocene

Bridged metallocene catalyst systems with switchable hydrogen and comonomer effects

BUCK RICHARD M

Bridged metallocene catalyst systems with switchable hydrogen and comonomer effects

Catalyst systems containing a bridged metallocene

Polymer compositions for rotational molding applications