Yangjun CHANG

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Taizhou, CN

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Patents Grantslast 30 patents

Information Patent Grant
Epoxide with low total chlorine content and no heavy metal residues...
- Patent number 11,952,357
- Issue date Apr 9, 2024
- JIANGSU TETRA NEW MATERIAL TECHNOLOGY CO., LTD.
- Jianwei Han
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Safe, Environmentally Friendly and Controllable Method for Preparin...
- Publication number 20230212133
- Publication date Jul 6, 2023
- Jiangsu Tetra New Material Technology Co., Ltd.
- JianWei Han
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
EPOXIDE WITH LOW TOTAL CHLORINE CONTENT AND NO HEAVY METAL RESIDUES...
- Publication number 20220363653
- Publication date Nov 17, 2022
- Jianwei HAN
- C07 - ORGANIC CHEMISTRY