Peimeng SHI

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Shangdong, CN

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Patents Grantslast 30 patents

Information Patent Grant
Preparation method for polyurethane optical resin and applications...
- Patent number 12,024,582
- Issue date Jul 2, 2024
- WANHUA CHEMICAL GROUP CO., LTD.
- Jianfeng Li
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
ALIPHATIC POLYISOCYANATE COMPOSITION, PREPARATION METHOD THEREFOR,...
- Publication number 20220298293
- Publication date Sep 22, 2022
- WANHUA CHEMICAL GROUP CO., LTD.
- Lidong SUN
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
PREPARATION METHOD FOR POLYURETHANE OPTICAL RESIN AND APPLICATIONS...
- Publication number 20220227915
- Publication date Jul 21, 2022
- WANHUA CHEMICAL GROUP CO., LTD.
- Jianfeng LI
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...