Fluoroacrylic monomers and polymers
AssigneeAtochem
InventorsMarie-Jose Lina, Andre Dessaint
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Abstract
The invention relates to fluoroacrylic monomers of formula: ##STR1## in which R.sub.f denotes a perfluoroalkyl radical, R is hydrogen or a methyl radical, R' denotes an alkyl or cycloalkyl radical, or --NR'-- denotes a 1, 4-piperazinylene radical, W and Z denote divalent connecting groups, Q is oxygen or sulphur or an --NR"-- group, R" denoting hydrogen an alkyl radical, and A is a C.sub.2 or C.sub.3 alkylene group. The polymers (homo- or copolymers) derived from these monomers may be used for the water-repellency and oil-repellency treatment of various substrates, particularly leather.
Claims6
Fluoroacrylic monomers of the formula:
- ##STR19## in which:
- R.sub.f is a straight or branched chain perfluoroalkyl radical;
- R is a hydrogen or a methyl radical,
- R' is an alkyl or cycloalkyl radical, and, alternately, --NR'-- denotes a 1,4-piperazinylene radical,
- W--Q is selected from among --(CH.sub.2).sub.p --O--, --(CH.sub.2).sub.p --S--, --(CH.sub.2).sub.p --NH--, --(CH.sub.2).sub.p --SO.sub.2 N(R")--(CH.sub.2).sub.q --O--, --SO.sub.2 --N(R")--(CH.sub.2).sub.q --O--, --(CH.sub.2).sub.p --O--(CH.sub.2).sub.q --O--, --(CH.sub.2).sub.p --S--(CH.sub.2).sub.q --O--, --(CH.sub.2).sub.p --(OCH.sub.2 CH.sub.2).sub.q --O--, --(CH.sub.2).sub.p --SO.sub.2 --(CH.sub.2).sub.q --O--, --CO--N(R")--(CH.sub.2).sub.p --O--, --CO--O--(CH.sub.2).sub.p --O--, --CH.dbd.CH--(CH.sub.2).sub.p --O--, --SO.sub.2 --N(R")--(CH.sub.2).sub.q --NH and --SO.sub.2 --N(R")--(CH.sub.2).sub.q --NCH.sub.3 --divalent linkages, wherein R" is hydrogen or an alkyl radical and p and q each represent an integer ranging between 1 and 20, inclusive,
- Z is a divalent aliphatic, alicyclic or aromatic connecting group, and
- a is an alkylene group having 2 or 3 carbon atoms.
Fluoroacrylic monomers of the formula ##STR20## in which R.sub.f is a perfluoroalkyl radical of 6, 8 or 10 carbon atoms,
- R is hydrogen or a methyl radical,
- R' is a tert-butyl radical,
- W is a --CH.sub.2 CH.sub.2 --O--, --CH.sub.2 CH.sub.2 --S--, or --CH.sub.2 CH.sub.2 --SO.sub.2 --N(R")--CH.sub.2 CH.sub.2 --O--.degree.linking group,
- R" is hydrogen or an alkyl radical, and
- Z is a 2,4- and/or 2,6-tolylene group.
Fluoroacrylic monomers of the formula:
- ##STR21## in which:
- R.sub.f is a straight or branched chain perfluoroalkyl radical,
- R is a hydrogen or a methyl group,
- R' is an alkyl or cycloalkyl radical and, alternately, --NR'-- denotes a 1,4 piperazinylene radical,
- W--Q is selected from among --CH.sub.2 CH.sub.2 --O--, CH.sub.2 CH.sub.2 --S-- and --CH.sub.2 CH.sub.2 --SO.sub.2 --N(R")--CH.sub.2 CH.sub.2 --O--,
- R" is a hydrogen or an alkyl radical,
- Z is a divalent aliphatic, alicyclic or aromatic connecting group, and
- A is an alkylene group having 2 or 3 carbon atoms.
Dependencies are inferred from the claim text.