Xueli Yu

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Yantai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Catalyst for aminating polyether polyol and preparation method ther...
- Patent number 10,814,314
- Issue date Oct 27, 2020
- Wanhua Chemical Group Co., Ltd.
- Congying Zhang
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
High-speed mixing reactor and application thereof
- Patent number 9,138,717
- Issue date Sep 22, 2015
- WANHUA CHEMICAL GROUP CO., LTD
- Jiansheng Ding
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
CATALYST FOR AMINATING POLYETHER POLYOL AND PREPARATION METHOD THER...
- Publication number 20180318806
- Publication date Nov 8, 2018
- WANHUA CHEMICAL GROUP CO., LTD.
- Congying Zhang
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
HIGH-SPEED MIXING REACTOR AND APPLICATION THEREOF
- Publication number 20130178596
- Publication date Jul 11, 2013
- YANTAI WANHUA POLYURETHANES CO., LTD.
- Jiansheng Ding
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL