Inventor

QIN ZENGQUAN

US60 patents

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

QIN ZENGQUAN

BRIDGESTONE CORP

Hydroxyaryl functionalized polymers

Process for producing polydienes

Process for producing polydienes

Processes for the preparation of high-cis polydienes

Metallic complex catalyst, polymerization methods employing same and polymer products thereof

Functionalized polymer

Functionalized polymer, process for preparing and rubber compositions containing the functionalized polymer

Functionalized polymer, process for preparing and rubber compositions containing the functionalized polymer

Nickel-based catalysts for preparing high cis 1,4-polydienes

Composition including multiple terminally functionalized polymers

Polymerization catalyst composition and method of employing same

Ethylene interpolymer

Hydroxyaryl functionalized polymers

Process for producing high cis-1,4-polydiene with lanthanide-based catalyst compositions

Hydroxyaryl functionalized polymers

Rubber compositions including siliceous fillers

Nickel-based catalyst composition

Functionalized polymer, process for preparing and rubber compositions containing the functionalized polymer

Polybutadiene polymers and rubber compositions incorporating same for low temperature applications

Polybutadiene polymers and rubber compositions incorporating same for low temperature applications

Modified high cis polydiene polymer, related methods and rubber compositions

Copolymerization of polyenes and alkenes

Elastomeric compounds having increased cold flow resistance and methods producing the same

Catalyst systems and methods for preparation of 1,4-polybutadiene rubber

Processes for the preparation of high-cis polydienes

Organometallic complex catalyst and polymerization method employing same

Processes for preparation of cyclic and acyclic diene copolymer and rubber composition

QIN ZENGQUAN

Hydroxyl group-containing methylstyrene and polymers incorporating same

Catalysts for preparing cis 1,4-polydienes

Hydroxyl group-containing methylstyrene and polymers incorporating same

Polymers functionalized with hydroxyl group-containing diphenylethylene

Processes for preparation of cyclic and acyclic diene copolymer and rubber composition

Metal complex catalysts and polymerization methods employing same

Polymers incorporating hydroxyl group-containing methylstyrene

Process for producing polydienes

Method of making hydroxyaryl-functionalized interpolymer

CORNELL RES FOUNDATION INC

Polycarbonates made using highly selective catalysts

Polycarbonates made using highly selective catalysts

Polycarbonates made using highly selective catalysts

PAN XIAO-DONG

Hydroxyaryl functionalized polymers

Elastomeric compounds having increased cold flow resistance and methods producing the same

Processing of rubber compositions including siliceous fillers

YAN YUAN-YONG

Anionic polymerization initiators and processes

Rubber compositions including siliceous fillers

Hydroxyaryl functionalized polymers

COATES GEOFFREY W

Polycarbonates made using highly selective catalysts

Copolymerization of propylene oxide and carbon dioxide and homopolymerization of propylene oxide

LUO STEVEN

Polymers functionalized with lactones or thiolactones containing a protected amino group

CHEN ZHONG-REN

Method of improving affinity between filler and polymers having a low degree of unsaturation

YAN YUAN YONG

Method of making hydroxyaryl-functionalized interpolymer by free radical initiated polymerization