Yangzhou Chenhua New Materials Co., Ltd. (hereinafter referred to as the "Company") has recently obtained an invention patent issued by the State Intellectual Property Office of the People's Republic of China. The details are as follows:
Invention name: A NaY-containing molecular sieve composition and its preparation method for continuous synthesis of polyurethane with tertiary amine catalysts
Inventors: Fang Lianshun; Dong Xiaohong; Ye Guanghua; Lin Qing; Guan Dan; Hao Sizhen; Wang Shilin; Bi Jihui
Patent No.: ZL 2022 1 0754273.X
Patent application date: June 30, 2022
Patentee: Yangzhou Chenhua New Materials Co., Ltd.
Address: No. 231, Zhenzhong Road, Caodian Town, Baoying County, Yangzhou City, Jiangsu Province, 225800
Authorization announcement date: March 24, 2023 Authorization announcement number: CN 115041221 B
Patent certificate number: No. 5811602
Patent Type: Invention Patent
Patent term: 20 years, starting from the date of patent application.
Key points of the patent: The present invention prepares NaY molecular sieve catalyst modified by cerium nitrate and manganese nitrate, and applies it to the synthesis of tertiary amine catalysts for continuous preparation of polyurethane, which can effectively reduce the etherification of dimethyl alcohol The temperature and time conditions for the reaction to generate bis-dimethylaminoethyl ether reduce the generation of side reactions, increase the yield of products, make the synthesis route more in line with the principle of energy utilization, and improve the safety of the synthesis route.
The above-mentioned invention patents have not yet been applied in the production of the company's products. Continue to innovate the mechanism to enhance the company's core competitiveness.
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