Inventor

CHANG MAIN

US46 patents

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

CHANG MAIN

EXXON CHEMICAL PATENTS INC

Supported catalyst for 1-olefin(s) (co)polymerization

Polymerization process using a silica gel supported metallocene-alumoxane catalyst

Method for preparing a silica gel supported metallocene-alumoxane catalyst

Method for preparing a silica gel supported metallocene-alumoxane catalyst

Method for utilizing triethylaluminum to prepare an alumoxane support for an active metallocene catalyst

Method for preparing a supported metallocene-alumoxane catalyst for gas phase polymerization

Supported metallocene-alumoxane catalyst for high pressure polymerization of olefins and a method of preparing and using the same

Method for preparing polyethylene wax by gas phase polymerization

Method for preparing a supported metallocene-alumoxane catalyst for gas phase polymerization

Polymerization catalyst systems, their production and use

Polymerization catalyst systems, their production and use

Olefin polymerization catalyst from trialkylaluminum mixture, silica gel and a metallocene

Method for utilizing triethyaluminum to prepare an alumoxane support for an active metallocene catalyst

Metallocene catalyst systems

Metallocene catalyst systems

Catalyst for olefin polymerization

Supported vanadium catalyst for polymerization olefins and a process of preparing and use the same

Supported catalyst for 1-olefin and 1,4-diolefin copolymerization

Catalyst for olefin polymerization

Supported vanadium catalyst for polymerization of olefins and a process of preparing and using the same

CHANG MAIN

Internal and external donor compounds for olefin polymerization catalysts III

High activity catalyst component for olefin polymerization and method of using the same

Internal and external donor compounds for olefin polymerization catalysts

Internal and external donor compounds for olefin polymerization catalysts II

Ethylene polymerization catalysts

Internal donor structure for olefin polymerization catalysts and methods of making and using same

Internal donor structure for olefin polymerization catalysts and methods of making and using same

BASF CORP

Internal donor for olefin polymerization catalysts

Internal donor for olefin polymerization catalysts

Mixed internal donor structures for 1-olefin polymerization catalysts

Internal donor structure for olefin polymerization catalysts and methods of making and using same

EXXONMOBIL CHEM PATENTS INC

Propylene diene copolymerized polymers

Articles formed from propylene diene copolymers

Propylene diene copolymers

Supported organometallic catalysts and their use in olefin polymerization

BASF CATALYSTS LLC

Spherical catalyst for olefin polymerization

Supported catalyst for olefin polymerization

Internal and external donor compounds for olefin polymerization catalysts IV

Supported catalyst for olefin polymerization

ENGELHARD CORP

Spherical catalyst for olefin polymerization

High activity and good hydrogen response Ziegler-Natta polyethylene catalyst

UNIVATION TECH LLC

Polymerization catalyst systems, their production and use

Polymerization catalyst systems, their production and use

(unassigned)

Supported catalyst for 1-olefin(s) (co)polymerization

W R GRACE & CO -CONN

Combined internal donor system for Ziegler-Natta polyolefin catalysts and methods of making and using same

GRACE W R & CO

Internal donor structure for olefin polymerization catalysts and methods of making and using same