| 摘要 |
Use in the treatment of glass substrata of mono- and bifunctional (per)fluoropolyether compounds having the following structures: Rf-CFY-L-W W-L-YFC-O-Rf-CFY-L-W wherein: L is a linking organic group -CO-NR'-(CH2)q-, with R' = H or C1-C4 alkyl; q = 1-8; Y = F, CF3; W is a -Si(R1) alpha (OR2)3- alpha group with alpha = 0, 1, 2; R1 and R2 equal to or different from each other are C1-C6 alkyl groups, optionally containing one or more ether O atoms, C6-C10 aryl groups, C7-C12 alkyl-aryl or aryl-alkyl groups; Rf has a number average molecular weight in the range 350-5,000, and comprises repeating units of the type: (CFXO), (CF2CF2O), (CF(CF3)CF2O), (CF2CF(CF3)O), wherein X = F, CF3. |
