Patent ID: 6156937
Filing Date: 2000-12-05
Classification: C08G

Abstract:
A functionalized fluoropolyether defined by the formula (II):T'--O (CF.sub.2 CF.sub.2 O).sub.p (CF.sub.2 O).sub.s CRR'Y (II)where: R is selected from the group consisting of F, Cl, Br and I; R', equal to or different from R, is selected from the group consisting of F, Cl, Br and I; T' is selected from the group consisting ofAlog--CF.sub.2 CF.sub.2 --; Alog--CF.sub.2 --; and Alog CF.sub.2 CF--(Alog)--;where Alog is I;p ranges from 1 to 20, with s/p being between 0.5 and 2.0; Y is selected from the group consisting of --CN, --CH.sub.2 Z, --COR""', ##STR36## where: E is --NH--, --O-- or --S--, and furthermore with the proviso:(A) when Y is --CH.sub.2 Z, Z is OR"", where R"" is a hydrogen atom, or: ##STR37## where R.sub.1 is an alkyl containing from 1 to 30 carbon atoms, with an alkyl containing from 1 to 30 carbon atoms with ether bonds of type --C--O--C--, or --(CH.sub.2 --CH.sub.2 O).sub.d H, wherein d is a number ranging from 1 to 15; ##STR38## a naphthyl group; a benzyl group; or a mono- or poly-substituted alkyl or akoxy benzyl group of the type: ##STR39## where R.sub.2 =an alkyl containing from 1 to 4 carbon atoms; or Z is a nitrogen-containing group --NR.sub.3 R.sub.4 where R.sub.3 and R.sub.4, alike or different from each other, are hydrogen atoms or they are, either individually or both, R.sub.1 groups as defined above, or, when R.sub.3 =H, R.sub.4 is: ##STR40## or R.sub.3 and R.sub.4 together form a cyclic imide of formula: ##STR41## wherein the phenyl group contains a substituent group of the anhydride type; ##STR42## (B) and when Y=COR""', R""', is selected from the group consisting of --NHR.sub.5, where R.sub.5 is hydrogen, C.sub.1 -C.sub.8 alkyl, C.sub.1 -C.sub.8 mono- or poly-hydroxyalkyl, C.sub.1 -C.sub.8 aminoalkyl, allyl group, methallyl group, R.sub.6 --Si(OCH.sub.3).sub.3 or R.sub.6 Si(OC.sub.2 H.sub.5).sub.3, where R.sub.6 is C.sub.1 -C.sub.8 alkylene, --R.sub.7 NCO where R.sub.7 is C.sub.1 -C.sub.8 alkylene, C.sub.5 -C.sub.6 cycloalkylene, C.sub.6 -C.sub.10 arylene, an unsubstituted aromatic radical or a substituted aromatic radical selected from the group consisting of pentafluorophenyl, bromotetrafluorophenyl, dibromodifluorophenyl, bromophenyl and bromobenzophenyl.