Importance

Loading Importance Indicators...

Abstract

Use in the treatment of glass substrata of mono- and bi-functional (per)fluoropolyether compounds having the following structures: R.sub.f--CFY-L-W (I) W-L-YFC--O--R.sub.f--CFY-L-W (II) wherein: L is a linking organic group --CO--NR'--(CH.sub.2).sub.q--, with R'=H or C.sub.1-C.sub.4 alkyl; q=1-8; Y=F, CF.sub.3; W is a --Si(R.sub.1).sub..alpha.(OR.sub.2).sub.3-.alpha. group with .alpha.=0, 1, 2; R.sub.1 and R.sub.2 equal to or different from each other are C.sub.1-C.sub.6 alkyl groups, optionally containing one or more ether O atoms, C.sub.6-C.sub.10 aryl groups, C.sub.7-C.sub.12 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),(CF.sub.2CF.sub.2O),(CF(CF.sub.3)CF.sub.2O),(CF.sub.2CF(CF.sub.3)O-), wherein X=F, CF.sub.3.

Loading the Abstract Image...

First Claim