Abstract: The invention relates to a crosslinking process for self-crosslinking (meth)acrylic copolymers soluble in organic solvents and characterized in that:a dispersion or solution having a solids content of between 30 and 80% by weight and a viscosity of between 5 and 5,000 poises and composed of one or more organic solvents and one or more (meth)acrylic copolymers is prepared, the said copolymers having been obtained by copolymerization, in an organic solvent medium, of:10 to 40% by weight of glycidyl (meth)acrylate,4 to 20% by weight of at least one monoethylenic monomer X having one or more carboxyl functional groups and40 to 86% by weight of at least one ethylenic comonomer Y,the ratio of the number of epoxy functional groups in the monomers to the number of carboxyl functional groups in the monomers being between 0.5 and 3.

Abstract: The invention relates to a crosslinking process for self-crosslinking copolymers essentially based on (meth)acrylic monomers and is characterized in that, on or before the deposition of a layer containing at least one crosslinking catalyst, a second layer containing at least one self-crosslinking copolymer in suspension or in solution in an aqueous medium or in an organic solvent is applied, and in that these two layers are subjected to a heat treatment such that crosslinking of the layer containing the copolymer is initiated.The invention is used in the production of molded, impregnated, coated and printed articles, adhesives, binders, finishes, paints and varnishes.

Abstract: The present invention relates to new fluorinated products resulting from the reaction of:(a) one molecule of one or more acids of the formula:HS - A (COOH).sub.n (I)and of(b) one to five molecules of one or more compounds possessing at least one ethylenic bond, at least one of these compounds corresponding to the general formula: ##STR1## and possibly neutralized or partially neutralized with an inorganic or organic base.In the formulae (I) and (II), A represents an aliphatic or aromatic hydrocarbon radical, n is a whole number from 1 to 4, Rf represents a straight or branched perfluorinated chain containing 1 to 20 carbon atoms, B represents bivalent, possibly branched, chaining and may comprise sulfur, oxygen or nitrogen atoms, one of the symbols R represents a hydrogen atom and the other a hydrogen atom or an alkyl group containing 1 to 4 carbon atoms.

Abstract: New fluorinated telomerization products are disclosed which are products produced by the reaction of:a. one mole of an ester of one or more acids of the formulaHS-A(COOH).sub.n (I)with one or more polyols, andb. 1 to 5 moles of one or more compounds possessing at least one ethylenic bond, one at least of these compounds conforming to the general formula ##STR1## In formulae (I) and (II), A represents a hydrocarbon radical which may contain atoms of oxygen, nitrogen, phosphorus, sulphur or halogen, n is a whole number from 1 to 4, Rf is a perfluorinated chain containing 1 to 20 carbon atoms, B is a bivalent chain, one of the symbols R represents a hydrogen atom and the other a hydrogen atom or an alkyl group containing 1 to 4 carbon atoms. These products when applied to substrates, such as textile fabrics, confer on them a permanent anti-stain and soil release finish while permitting easy elimination of soil by washing.

Abstract: Sizing bath for a non-woven cellulose based substrate in which the bath has a pH of 2 to 12 and contains as sizing agent at least one anionic latex of at least one copolymer of which the vitreous transition temperature is -40.degree. C. to +120.degree. C.

Abstract: Sizing bath for a non-woven cellulose based substrate in which the bath has a pH of 2 to 12 and contains as sizing agent at least one anionic latex of at least one copolymer of which the vitreous transition temperature is -40.degree. C. to +120.degree. C. and of which the K value is 55 to 130, the copolymer containing in interpolymerised form:A. 35% to 80% by weight of at least one ester of acrylic and/or methacrylic acid with an alcohol containing 1 to 18 carbon atoms and/or at least one vinyl ester of a carboxylic acid containing 1 to 18 carbon atoms,B. 20% to 50% by weight of acrylic, methacrylic, crotonic or itaconic acid, or a mixture thereof,C. 0% to 20% by weight of at least one monomer having an ethylene linkage and at least one polar group or containing several ethylene linkages,D.

Abstract: Mixture comprising, on the one hand, an aqueous dispersion of a copolymer (A) containing in interpolymerized form:1. 30% to 99% by weight of one or more monomers of the formula: ##STR1## in which Rf represents a perfluoro chain, straight or branched, containing 1 to 20, preferably 2 to 10 carbon atoms, a is a whole number between 2 and 20 inclusive, preferably equal to 2 or 4, R represents a hydrogen atom or an alkyl group containing 1 to 10 carbon atoms, a cycloalkyl group containing 5 to 12 carbon atoms, an hydroxyalkyl group containing 2 to 4 carbon atoms or an aryl group possibly substituted by an alkyl radical containing 1 to 6 carbon atoms, R', R", X and X' may be the same or different and represent hydrogen atoms or alkyl groups containing 1 to 4 carbon atoms, b is a whole number between 1 and 4 inclusive, preferably equal to 1 or 2, and Y represents the residue of an alkene-mono- or -di-carboxylic acid or a monoalkyl ester of such a dicarboxylic acid;2.

Abstract: A pigmentary composition prepared by coating metallic particles of pigment by means of a polymer or copolymer, by covering the polymerization or copolymerization "in situ" of at least one ethylenically unsaturated monomer having at least one oxygen or nitrogen heteroatom, and having a mono- or di-carborylic acid function, or an ester, nitrile or amide function or an N-substituted amide function, or an amine, alcohol or ether function, wherein the polymerization or copolymerization reaction is effected in a medium comprising at least one organic solvent in which the monomer is soluble and in the presence of at least one polymerization catalyst soluble in this medium, the monomer and the proportion thereof being selected so that the polymer or copolymer formed is insoluble in the organic solvent used.

Abstract: A process for the preparation of pigmentary compositions which comprises coating the particles of pigment by means of a polymer or copolymer, by covering by the polymerisation or copolymerisation "in situ" of at least one ethylenically unsaturated monomer having at least one polymerisable double bond and containing at least three carbon atoms or at least two carbon atoms and a heteroatom and/or a halogen atom attached to one of the carbon atoms wherein the polymerisation or copolymerisation reaction is effected in a medium comprising at least one organic solvent in which the monomer is soluble, and in the presence of at least one polymerisation catalyst soluble in this medium, the monomer and the proportion thereof being selected so that the polymer or copolymer formed is insoluble in the organic solvent used, the ratio by weight of pigment to resin being from 10/90 to 95/5 and the amount of catalyst being from 0.

Abstract: Aqueous pigmentary printing pastes for textile fibers containing a pigment and a thickener in which the thickener is a latex, having a proportion of dry material of from 30% to 50%, of a water-soluble copolymer having a glass transition temperature of from 20.degree.C to 100.degree.C and containing in interpolymerized form the following components: (a) 40% to 60% by weight of acrylic acid, methacrylic acid, crotonic acid or mixtures thereof; (b) 10% to 30% by weight of a vinyl ester of an organic or mineral acid; (c) 50% to 30% by weight of one or more ethylenic monomers, other than the above-mentioned esters, which form water-insoluble homopolymers; (d) 0% to 5% by weight of one or more monomers containing an ethylenic linkage and one or more polar groups; and (e) 0% to 5% by weight of one or more monomers containing several ethylenic linkages; the proportion of said latex in the pastes being 0.5% to 15% and said copolymers being partially or totally neutralized.