The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 19, 2023
Filed:
Dec. 06, 2022
Zhejiang Huangma Technology Co., Ltd., Zhejiang, CN;
Zhejiang Huangma Shangyi New Material Co., Ltd., Zhejiang, CN;
Zhejiang Lukean Chemical Co., Ltd., Zhejiang, CN;
Shangyu Huangma Surface Activated Reagent Research Institute Co., Ltd., Zhejiang, CN;
Weisong Wang, Zhejiang, CN;
Yifeng Jin, Zhejiang, CN;
Majishi Wang, Zhejiang, CN;
Dinglian Ma, Zhejiang, CN;
Ran Kou, Zhejiang, CN;
Hongjun Gao, Zhejiang, CN;
Qingmei Wan, Zhejiang, CN;
Zhejiang Huangma Technology Co., Ltd., Shaoxing, CN;
Zhejiang Huangma Shangyi New Material Co., Ltd., Shaoxing, CN;
Zhejiang Lukean Chemical Co., Ltd., Shaoxing, CN;
Shangyu Huangma Surface Activated Reagent Research Institute Co., Ltd., Shaoxing, CN;
Abstract
Related are a high-molecular weight allyl alcohol polyoxyethylene polyoxypropylene ether and a preparation method. During preparation, an allyl alcohol raw material and a supported catalyst Rb-NHPA are firstly added into a high-pressure reaction kettle, and it is heated after being replaced with a nitrogen gas; then after the internal temperature of the reaction kettle is raised to a reaction temperature, an ethylene oxide (EO) and propylene oxide (PO) mixture is continuously fed for a reaction; and finally, after the internal temperature of the reaction kettle is reduced, an acetic acid is dropwise added into the reaction kettle so that the crude product of the high-molecular weight allyl alcohol polyoxyethylene polyoxypropylene ether is neutralized to be neutral. The refining process of a polyether is omitted, the process flow is greatly simplified, and the process time is effectively saved. In addition, the supported catalyst Rb-NHP may be recycled.