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:
Mar. 04, 2025
Filed:
Dec. 30, 2021
Hangzhou Transfar Fine Chemical Co., Ltd., Hangzhou, CN;
Hangzhou Normal University, Hangzhou, CN;
Shengpeng Wang, Hangzhou, CN;
Bajin Chen, Hangzhou, CN;
Weiming Xu, Hangzhou, CN;
Jinxing Song, Hangzhou, CN;
Pengfei Zhang, Hangzhou, CN;
Xiaojun Wang, Hangzhou, CN;
Bencheng Yu, Hangzhou, CN;
Youju Huang, Hangzhou, CN;
Xiaobo Yang, Hangzhou, CN;
Hangzhou Transfar Fine Chemical Co., Ltd., Hangzhou, CN;
Hangzhou Normal University, Hangzhou, CN;
Abstract
Disclosed are (2,2-dimethyl-1,3-dioxolan-4-yl)methyl 2-bromo-2,2-difluoroacetate, a waterborne polyurethane, and preparation methods thereof. The (2,2-dimethyl-1,3-dioxolan-4-yl)methyl 2-bromo-2,2-difluoroacetate could be used as a modified monomer for preparing a waterborne polyurethane, and substituents at a C2 position of the (2,2-dimethyl-1,3-dioxolan-4-yl)methyl 2-bromo-2,2-difluoroacetate are two fluorine atoms and one bromine atom. When it is used for preparing the waterborne polyurethane, fluorine and bromine groups are introduced into the structure of the waterborne polyurethane, and the resultant waterborne polyurethane exhibits good moisture resistance and flame retardance.