Inventor

BROWN STEPHEN JOHN

CA31 patents

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

BROWN STEPHEN JOHN

NOVA CHEM INT SA

Dual reactor polyethylene process using a phosphinimine catalyst

Solution polymerization process

Heterogeneous/homogeneous copolymer

High temperature solution polymerization process with phosphinimine cyclopentadienyl metal (GRP IV) complex

Catalyst having a ketimide ligand

Polymerization catalyst having a phosphinimine ligand

Multimodal polyolefin pipe

Bis-phosphinimine catalyst

Catalyst having a ketimide ligand

Cyclopentadienyl/phosphinimine catalyst with one and only one activatable ligand

Bis-phosphinimine catalyst

Phosphinimine/heteroatom catalyst component

Nitrogen substituted phosphinimine ligand

Catalyst deactivation

Films produced from ethylene interpolymer products

Process to prepare ethylene propylene elastomer

Shrink film from single site catalyzed polyethylene

Hydrocarbyl phosphinimine/cyclopentadienyl complexes of group IV metals and preparation thereof

Mixed titanium-vanadium catalysts for solution ethylene polymerization

Rotomolding process with reduced cycle times

Olefin polymerization catalyst having a bridged phosphole-heteroatom ligand

Olefin polymerization using a catalyst having a bridged cyclopentadienyl-phosphole ligand

On the fly catalyst transitions

Multimodal polyolefin pipe

Optimized agitator system for production of polyolefin

Heat management in ethylene oligomerization

NOVA CHEMICAL INTERNATIONAL S

Dual reactor ethylene polymerization process

Solution polymerization of ethylene

WANG XIAOCHUAN

Catalyst activation in a dual reactor process

VAN ASSELDONK LAUWRENCE MARTIN JOZEF

Multi reactor process

NOVA CHEMICALS INTERNATIONAL SA

Continuous ethylene tetramerization process