Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12304993 | Storage-stable polyisocyanate composition and preparation method | Zhicheng Zhu, Bin Shi, Chengyue YAN, Bing Zheng, Li Li +4 more | 2025-05-20 |
| 12264121 | 1,3-bisisocyanatomethylcyclohexane composition and optical resin prepared therefrom | Fulin ZHU, Jianfeng Li, Peng Wang, Wenbin Li, Jie Chen +4 more | 2025-04-01 |
| 12024582 | Preparation method for polyurethane optical resin and applications thereof | Jianfeng Li, Qian Wu, Fulin ZHU, Peng Wang, Hao Chen +3 more | 2024-07-02 |
| 11939280 | Method for preparing isophorone diisocyanate | Yong YU, Lei Zhao, Wenbin Li, Ye Sun, Wei He +4 more | 2024-03-26 |
| 11814339 | Method for preparing isocyanate in gaseous phase | Weiqi Hua, Tonghe Li, Shuchang Sun, Jingxu Wang, Jinping HAN +5 more | 2023-11-14 |
| 11111332 | Isocyanate polymerization catalyst, preparation method thereof, and method for preparing polyisocyanate by using same | Wei Liu, Bin Shi, Yuqi Wang, Lidong Sun, Yuan Li +1 more | 2021-09-07 |
| 11059772 | Imine-type quaternary ammonium salt catalyst, preparation method thereof and use thereof for preparation of polyisocyanate composition | Nuancheng Wang, Yuqi Wang, Bin Shi, Zhicheng Zhu, Hefu Li +2 more | 2021-07-13 |
| 10645756 | Heater, use thereof and method for preparing isocyanate using heater | Yong YU, Zhongping Sun, Xuelei Cui, Peng Wang, Zhengao Lv +1 more | 2020-05-05 |
| 9701624 | Method for preparing biuret polyisocyanate | Bin Shi, Haijun Li, Weiqi Hua, Yuan Li, Ensen Ma +1 more | 2017-07-11 |
| 8206652 | Jet reactor with flow ducts and process for preparing isocyanates using it | Zhongping Sun, Jianfeng Li, Yong Wang, Weiqi Hua, Deqiang Ma +2 more | 2012-06-26 |