Produits Chimiques Ugine Kuhlmann

Societe Chimique Des Charbonnages S.a.

Jean Perronin

Andre L Dessaint

Rene Paul Decamp

Bernard Jean Gurtner

Dominique Fourquier

Philippe Robert Carel

The invention relates to a crosslinking process for self-crosslinking (meth)acrylic copolymers soluble in organic solvents and characterized in that:

Low temperature self-crosslinkable polymer compositions and processes

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.

Crosslinking process

The present invention relates to new fluorinated products resulting from the reaction of:

Fluorinated products intended for oilproofing and waterproofing

New fluorinated telomerization products are disclosed which are products produced by the reaction of:

Fluorinated anti-stain and soil release finishes

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 interpolymerized form:

Process for sizing substrate and products obtained thereby

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:

Sizing

Mixture comprising, on the one hand, an aqueous dispersion of a copolymer (A) containing in interpolymerized form:

Water-repellent and oil-repellent compositions based on fluorine compound

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.

Process for the preparation of pigmentary metallic particles coated with

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 0.1 to 10% with respect to the weight of the monomer to be polymerised; and pigmentary compositions obtained by this process.

Process for the preparation of pigmentary particles coated with an

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.

Growing community of inventors

Chantilly, France

Jean Perronin