Perfluorinated linear polyethers |
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| 申请号 | US39317973 | 申请日 | 1973-08-30 | 公开(公告)号 | US3896167A | 公开(公告)日 | 1975-07-22 |
| 申请人 | MONTEDISON SPA; | 发明人 | SIANESI DARIO; PASETTI ADOLFO; CORTI COSTANTE; | ||||
| 摘要 | Perfluorinated cyclic ethers and fluorinated linear polyethers are prepared by photochemical reaction in liquid phase of perfluoropropylene with oxygen in presence of ultraviolet radiation. | ||||||
| 权利要求 | 1. A LINEAR PERFLUORINATED POLYETHER FORMED OF MOLECULES HAVING A CHAIN STRUCTURE CONSISTING OF A -C3F6-O- REPEATING UNIT AND AT LEAST ONE REPEATING UNIT SELECTED FROM THE GROUP CONSISTING OF 2. The perfluorinated polyether of claim 1, wherein the ratio of the sum of the total -CF2-O- units and the total |
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| 说明书全文 | |||||||
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