| 摘要 |
Use of crosslinked polymers for coil coating based on perfluoropolyethereal polymers, comprising as repeating units sequences of one or more oxyfluoroalkylenic units such as -CF2CF2O-, -CR4R5CF2CF2O- wherein R4 and R5 equal to or different from each other are chosen among H, Cl, F or perfluoroalkyl from 1 to 4 carbon atoms, -CF2CF(CF3)O-, -CFYO-, wherein Y is equal to F or CF3, having hydroxylic bifunctional termination, crosslinking being carried out with blocked polyisocyanates having at least 3 NCO groups. |
