Elf Atochem S.a.

E.i. Dupont De Nemours and Company

Jean-Marc Corpart

Marie-Jose Lina

Didier Juhue

Martial Pabon

Christian Collette

Andre L Dessaint

Paul Mallo

Bernard Boutevin

Francoise Candau

Andre Kowalik

Manuel Hidalgo

Denis Tembou N'Zudie

Joseph Selb

Anne-Claire Gayon

André Kowalik

Dennis Tembou Nzudie

Elisabeth Morillon

Christian Bonardi

Christian Collete

Raphaelle Ciampa

The invention relates to a composition comprising a compound of formula (I): R&#x2014;B&#x2014;Ro&#x2014;Z and a compound of formula (II): and/or their reaction product.

Surface treatment composition and process

The invention relates to fluorinated copolymers resulting from the polymerization of a polyfluorinated monomer, a (meth)acrylate amino alcohol, vinyl acetate and a silane monomer in a distillable organic solvent, aqueous compositions containing them, and their use for treating solid substrates, notably building materials.

Fluorinated copolymers for hydrophobic and oleophobic treatment of building materials

The invention discloses a process for the preparation of fluorinated polymers by miniemulsion polymerization of a mixture of fluorinated and nonfluorinated monomers in the absence of organic solvent. This polymerization process makes it possible to obtain an aqueous emulsion of fluorinated polymers devoid of coagulum.

Polymers fluorinated by polymerization in mini-emulsion

Fluorinated hydrophilic polymers

Fluorocopolymers resulting from the polymerization of a polyfluoromonomer, of an aminoalcohol (meth)acrylate and of methacrylic acid in a distillable organic solvent, and aqueous compositions containing them.

Fluorocopolymers for the hydrophobic and oleophobic treatment of various substrates

Fluorocopolymers for oil repelling and waterproofing treatment of

Novel associative acrylic polymers prepared by radical inverse emulsion polymerization. It is a methacrylic ester in which the radical is composed of a hydrophilic segment and of a hydrophobic segment. The associative polymers of the invention can be used as thickeners, flocculating agents or filler-retaining agents.

Associative polymers containing 2,4,6-triphenethyl benzyl

Rapidly dissolving/absorbing free-flowing powders of hydrophilic/superabsorbent (co)polymers, having irregular nonspherical morphology and a particle size distribution ranging from 100 .mu.m to 800 .mu.m, are prepared by (a) phase inversion (co)polymerizing stirred admixture of (i) a hydrocarbonic solution of at least one surfactant having an HBL ranging from 8 to 12 and (ii) an aqueous solution of at least one hydrophilic unsaturated monomer, in the presence of an effective amount of a radical polymerization initiator and at a predetermined temperature of (co)polymerization, (b) next introducing into the medium of (co)polymerization, after (co)polymerization of the at least one hydrophilic unsaturated monomer, a second aqueous solution of at least one hydrophilic unsaturated monomer, (c) then (co)polymerizing the second aqueous solution, and (d) thence extracting the hydrocarbonic phase and water from the resulting (co)polymerizate and drying same, with the proviso (e) that the second aqueous monomer solution is introduced at a temperature of about the predetermined temperature of (co)polymerization and the volumetric ratio of aqueous phase to hydrocarbonic phase ranges from 0.6 to 1.2.

Preparation of rapidly dissolving/absorbing powders of hydrophilic/super

The invention relates to fluoro copolymers containing hydroxyl groups and amino groups in salified or quaternized form. With such a copolymer and a polyisocyanate, an aqueous composition which is useful for the oleophobic and hydrophobic treatment of building materials may be prepared.

Cationic fluoro copolymers for the oleophobic and hydrophobic treatment

This invention relates to copolymers of molecular mass of between 5,000 and 300,000, consisting of a hydrophilic central portion, for example a polyacrylamide chain, and of hydrophobic ends the hydrophobicity of which is comparable with that of alkyl groups containing 4-20 carbons. They are produced by polymerization of hydrophilic monomers with the aid of initiators, for example of azo type, the hydrophobic residues of which will constitute the hydrophobic ends of the final copolymer. These copolymers are useful for rheological control of aqueous and/or pigmented compositions, like paints.

Water-soluble associative triblock copolymers

Fluorine-containing copolymers for use in coating substrates or for incorporation thereinto in order to impart water- and oil-repellent properties thereto are provided, starting from the following monomers:

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Sannois, France

Jean-Marc Corpart