Zhicheng Zhu

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Yantai, Shandong, CN

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Patents Grantslast 30 patents

Information Patent Grant
Imine-type quaternary ammonium salt catalyst, preparation method th...
- Patent number 11,059,772
- Issue date Jul 13, 2021
- Wanhua Chemical Group Co., Ltd.
- Nuancheng Wang
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
STORAGE-STABLE POLYISOCYANATE COMPOSITION AND PREPARATION METHOD TH...
- Publication number 20230272151
- Publication date Aug 31, 2023
- WANHUA CHEMICAL GROUP CO., LTD.
- Bin SHI
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
STORAGE-STABLE POLYISOCYANATE COMPOSITION AND PREPARATION METHOD
- Publication number 20230132686
- Publication date May 4, 2023
- WANHUA CHEMICAL GROUP CO., LTD.
- Zhicheng ZHU
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
IMINE-TYPE QUATERNARY AMMONIUM SALT CATALYST, PREPARATION METHOD TH...
- Publication number 20200377445
- Publication date Dec 3, 2020
- WANHUA CHEMICAL GROUP CO., LTD.
- Nuancheng Wang
- C07 - ORGANIC CHEMISTRY