POLYOXAZOLIDINONE RESIN, PREPARATION METHOD THEREOF AND USE THEREOF IN IMPREGNATING VARNISH |
|||||||
| 申请号 | US15996489 | 申请日 | 2018-06-03 | 公开(公告)号 | US20180273684A1 | 公开(公告)日 | 2018-09-27 |
| 申请人 | Suzhou Taihu Electric Advanced Material Co, Ltd.; | 发明人 | BIN WU; CHUNQI ZHANG; FENGXI JING; JIANFENG GU; LURU JING; ZHIFENG XIA; JUNFENG MA; | ||||
| 摘要 | A polyoxazolidinone resin, a preparation method thereof and a use thereof in an impregnating varnish are provided. The polyoxazolidinone resin is prepared by reacting an alicyclic epoxy resin and a diisocyanate in the presence of a catalyst at 150° C. to 170° C. for 3 to 5 hours, wherein the molar ratio of the isocyanate radical in the diisocyanate to the epoxy radical in the alicyclic epoxy resin is 1:1.8 to 2.3. the impregnating varnish of the present invention uses the polyoxazolidinone resin as a bulk material in combination with acrylated epoxy resin and alicyclic epoxy resin, such that the impregnating varnish has the advantages of being heat resistant and flame retardant, low in cost, and eco-friendly, and finds use in insulation treatment of high-voltage and low-voltage electric machinery. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
QQ群二维码
意见反馈
意见反馈