Ningbo Wanhua Polyurethanes Co. Ltd.

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Ningbo, Zhejiang, CN

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Patents Grantslast 30 patents

Information Patent Grant
Hole jet reactor and a process for the preparation of an isocyanate...
- Patent number 8,333,927
- Issue date Dec 18, 2012
- Ningbo Wanhua Polyurethanes Co., Ltd.
- Jiansheng Ding
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Jet reactor with flow ducts and process for preparing isocyanates u...
- Patent number 8,206,652
- Issue date Jun 26, 2012
- Ningbo Wanhua Polyurethanes Co., Ltd.
- Yonghua Shang
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Hole-jetting type mixer-reactor
- Patent number 8,042,988
- Issue date Oct 25, 2011
- Ningbo Wanhua Polyurethanes Co. Ltd.
- Jiansheng Ding
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Method of preparing polymethylene-polyphenyl-polyamine
- Patent number 7,893,301
- Issue date Feb 22, 2011
- Ningbo Wanhua Polyurethanes Co., Ltd.
- Jiansheng Ding
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
CATALYST FOR PREPARING CHLORINE BY OXIDATION OF HYDROGEN CHLORIDE A...
- Publication number 20130288884
- Publication date Oct 31, 2013
- NINGBO WANHUA POLYURETHANES CO., LTD.
- Guangquan Yi
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Method for Intermittently Producing 4,4'-Diaminodicyclohexylmethane...
- Publication number 20120323041
- Publication date Dec 20, 2012
- NINGBO WANHUA POLYURETHANES CO., LTD.
- Shuang Hu
- C07 - ORGANIC CHEMISTRY

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