Copolymers containing fluorine and their use for the water-repellent and oil-repellent treatment of various substrates
First Claim
1. A fluorinated copolymer which comprises:
- (a) 35 to 98% by weight of one or more polyfluorinated monomers of the formula;
##STR17## in which Rf represents perfluoroalkyl with a straight or branched chain containing 2 to 20 carbon atoms, Q represents oxygen or sulfur, B represents a bivalent chain selected from;
##STR18## --(CH2)p --, --(CH2)p --O--(CH2)r --,--(CH2)p --S--(CH2)r --,--(CH2)p --(OCH2 CH2)r --,--(CH2)p --SO2 --(CH2)r --,--CH═
CH--(CH2)p --, ##STR19## --COO--(CH2)p -- or ##STR20## in which p is a whole number from 1 to 20, q is a whole number from 1 to 4, r is a whole number from 1 to 20, R6 is hydrogen, alkyl containing 1 to 10 carbon atoms, cycloalkyl containing 5 to 12 carbon atoms, hydroxyalkyl containing 2 to 4 carbon atoms, aryl or aryl substituted by alkyl containing 1 to 6 carbon atoms, R7 is hydrogen or alkyl containing 1 to 4 carbon atoms, X, X'"'"', Y and Y'"'"' are the same or different and each represents hydrogen or alkyl containing 1 to 4 carbon atoms, one of the symbols R represents hydrogen and the other hydrogen or alkyl containing 1 to 4 carbon atoms;
(b) 1 to 15% by weight of one or more monomers of the formula;
##STR21## in which B'"'"' represents linear or branched alkylene containing 1 to 4 carbon atoms, R'"'"' represents hydrogen or alkyl containing 1 to 4 carbon atoms, R1 represents alkyl containing 1 to 18 carbon atoms, hydroxyethyl or benzyl, R2 represents hydrogen or alkyl containing 1 to 18 carbon atoms, hydroxyethyl or benzyl or R1 and R2 together with the nitrogen form morpholino, piperidino or pyrrolidinyl-1;
(c) 1 to 50% by weight of one or more pyrrolidone monomers of the formula;
##STR22## in which R3, R'"'"'3, R4 and R5 are the same or different and each represents hydrogen or alkyl containing 1 to 4 carbon atoms; and
(d) up to 10% by weight of a monomer other than the monomers of formulae (I), (II) and (III), which is copolymerizable with said monomers of formulae (I), (II) and (III), and, optionally, its salt form obtained by salifying with an acid having a dissociation constant or first dissociation constant greater than 10-5, or its form obtained by quaternizing by means of a quaternizing agent.
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Abstract
The invention relates to fluorinated copolymers and their application to the waterproofing and oil-resistance treatment of various substrates. These copolymers comprise by weight:
(a) 35 to 98% of a monomer or monomers of the formula: ##STR1## in which Rf is a perfluoro radical, Q is an oxygen or sulfur atom, B is a bivalent chain linked to Q by a carbon atom, one of the symbols R is a hydrogen atom and the other a hydrogen atom or an alkyl radical:
(b) 1 to 15% of a monomer or monomers of the formula: ##STR2## in which B'"'"' is an alkylene radical, R'"'"' is a hydrogen atom or an alkyl radical, R1 is an alkyl, hydroxyethyl or benzyl radical, R2 is a hydrogen atom or an alkyl, hydroxyethyl or benzyl radical or R1 and R2, together with the nitrogen atom, form a heterocyclic radical:
(c) 1 to 50% of a monomer or monomers of the formula: ##STR3## in which R3, R'"'"'3, R4 and R5 are hydrogen atoms or alkyl radicals; and possibly
(d) up to 10% of any other monomer.
These copolymers are particularly well adapted to the waterproofing and oil-proofing of paper and similar articles.
61 Citations
9 Claims
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1. A fluorinated copolymer which comprises:
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(a) 35 to 98% by weight of one or more polyfluorinated monomers of the formula;
##STR17## in which Rf represents perfluoroalkyl with a straight or branched chain containing 2 to 20 carbon atoms, Q represents oxygen or sulfur, B represents a bivalent chain selected from;
##STR18## --(CH2)p --, --(CH2)p --O--(CH2)r --,--(CH2)p --S--(CH2)r --, --(CH2)p --(OCH2 CH2)r --, --(CH2)p --SO2 --(CH2)r --, --CH═
CH--(CH2)p --, ##STR19## --COO--(CH2)p -- or ##STR20## in which p is a whole number from 1 to 20, q is a whole number from 1 to 4, r is a whole number from 1 to 20, R6 is hydrogen, alkyl containing 1 to 10 carbon atoms, cycloalkyl containing 5 to 12 carbon atoms, hydroxyalkyl containing 2 to 4 carbon atoms, aryl or aryl substituted by alkyl containing 1 to 6 carbon atoms, R7 is hydrogen or alkyl containing 1 to 4 carbon atoms, X, X'"'"', Y and Y'"'"' are the same or different and each represents hydrogen or alkyl containing 1 to 4 carbon atoms, one of the symbols R represents hydrogen and the other hydrogen or alkyl containing 1 to 4 carbon atoms;(b) 1 to 15% by weight of one or more monomers of the formula;
##STR21## in which B'"'"' represents linear or branched alkylene containing 1 to 4 carbon atoms, R'"'"' represents hydrogen or alkyl containing 1 to 4 carbon atoms, R1 represents alkyl containing 1 to 18 carbon atoms, hydroxyethyl or benzyl, R2 represents hydrogen or alkyl containing 1 to 18 carbon atoms, hydroxyethyl or benzyl or R1 and R2 together with the nitrogen form morpholino, piperidino or pyrrolidinyl-1;(c) 1 to 50% by weight of one or more pyrrolidone monomers of the formula;
##STR22## in which R3, R'"'"'3, R4 and R5 are the same or different and each represents hydrogen or alkyl containing 1 to 4 carbon atoms; and(d) up to 10% by weight of a monomer other than the monomers of formulae (I), (II) and (III), which is copolymerizable with said monomers of formulae (I), (II) and (III), and, optionally, its salt form obtained by salifying with an acid having a dissociation constant or first dissociation constant greater than 10-5, or its form obtained by quaternizing by means of a quaternizing agent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification