Dingyi Hong

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Multiblock interpolymers and processes for the preparation thereof
- Patent number 6,777,499
- Issue date Aug 17, 2004
- China Petroleum and Chemical Corporation
- Yang Li
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Star-block interpolymers and preparation of the same
- Patent number 6,462,137
- Issue date Oct 8, 2002
- China Petroleum and Chemical Corporation
- Yang Li
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Butadiene/isoprene/monovinyl aromatic monomer heptablock copolymers...
- Patent number 6,372,853
- Issue date Apr 16, 2002
- China Petrochemical Corporation
- Yang Li
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
Method for Preparing Bisphenol a
- Publication number 20080091051
- Publication date Apr 17, 2008
- Dingyi Hong
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Multiblock interpolymers and processes for the preparation thereof
- Publication number 20030013826
- Publication date Jan 16, 2003
- Yang Li
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Star-block interpolymers and preparation of the same
- Publication number 20020120069
- Publication date Aug 29, 2002
- Yang Li
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...