S.p.c.m. Sa

Snf Group

S.p.c.p. Sa

Givaudan S.a.

Frédéric Blondel

Lionel Champagnon

Antonin Sanna

Ian Michael Harrison

Emmanuel Aussant

Guillaume Jeanson

Sandra Guinebretiere

Benoît Clement

Céline Besset

David Sanchez

Thomas Boursier

Charlène Botte

Dimitri Matioszek

This invention relates to a process for preparing an inverse emulsion comprising mixing an aqueous solution comprising a water-soluble (co)polymer A synthesized from at least one cationic monomer and an inverse EMI 2 emulsion comprising a water-soluble (co)polymer B synthesized from at least one cationic monomer, optionally followed by distillation. This invention also relates to the inverse emulsion thus obtained, a detergent or cosmetic or softening composition comprising such an inverse emulsion, as well as the use of such an inverse emulsion to improve the softening properties of a fabric softening composition.

Method for preparing an inverse emulsion comprising two cationic polymers

The invention relates to the use of an ampholyte copolymer as a colloidal stabilizer in the preparation of core-shell microcapsules containing a fragrance,

Use of an ampholyte copolymer as colloidal stabilizer in a process of encapsulating fragrance

A cosmetic or dermatological composition comprising at least one aqueous phase, of a branched or crosslinked polymer is obtained by polymerization of an aqueous solution of one or more monomers in water-in-oil inverse emulsion, at least one of the monomers used being an acrylic monomer and one or more of the monomers used being a monomer bearing at least one weak acid function, the molar percentage of monomers bearing at least one weak acid function relative to all of the monomers used being at least 30 mol %. The polymerization is carried out with a concentration of all the monomers in aqueous solution lying in the range 1.3 mmol to 3.6 mmol per gram of aqueous solution. During the polymerization, at most 20% of the acid functions present on the monomers having at least one acid function are in neutralized form. The compositions are intended for treatment of keratinous materials.

Use in cosmetics of polymers obtained by low-concentration, inverse emulsion polymerisation with a low level of neutralised monomers

An aqueous liquid detergent composition for household or industrial use, of a branched or cross-linked polymer is obtained by polymerizing an aqueous solution of one or more monomers by water-in-oil reverse emulsion, at least one of the monomers used being an acrylic monomer and one or more of the monomers used being a monomer carrying at least one weak acid function. The molar percentage of monomers carrying at least one weak acid function relative to the totality of the monomers being used being at least 30%, characterized in that:

Use in detergent compositions of polymers obtained by low-concentration reverse emulsion polymerization with a low content of neutralized monomers

The invention relates to the use of an ampholyte copolymer as a colloidal stabilizer in the preparation of aminoplast core-shell microcapsules containing an active material, wherein the ampholyte copolymer comprises:

Use of an ampholyte copolymer as colloidal stabilizer

Use for sizing textile materials with an aqueous sizing composition including at least one co-polymer obtained by the polymerization of at least one non-ionic monomer and/or one anionic monomer, and at least one monomer of formula (I): in which:

Sizing composition and process for textile materials

The invention relates to a process for preparing a cationic polymer thickener in particle form, said polymer consisting of a crosslinked water swellable cationic polymer comprising at least one cationic water soluble monomer and optionally at least one non-ionic water soluble monomer and/or at least one anionic water soluble monomer, wherein said polymer has a water extractable polymer content lower than 15 wt % as compared to the weight of the polymer, and wherein said polymer is obtained by gel polymerization of said monomers in the presence of from 500 ppm to 10.000 ppm of crosslinking agent relative to the weight of the monomers.

Cationic polymer thickeners

The present invention relates to a polymer prepared by polymerization of an aqueous solution of one or more monomers in water-in-oil inverse emulsion, in which one or more of the monomers used comprise(s) at least one acid function, the molar percentage of monomers bearing at least one weak acid function relative to all the monomers used being at least 30%. The polymerization is carried out with a concentration of all the monomers in aqueous solution which falls within the range of from 1.3 mmol to 3.6 mmol per gram of aqueous solution and during the polymerization, at most 20% of the acid functions present on the monomers which have at least one acid function are in neutralized form.

Low-concentration, inverse emulsion obtained by polymerization of weakly neutralized polymers

A water-soluble copolymer comprising, by mass relative to the total mass of the copolymer: in which:

Comb polymers which can be used in cosmetics and detergents

The present invention relates to a process for preparing a polymer by polymerization of an aqueous solution of one or more monomers in water-in-oil inverse emulsion, in which one or more of the monomers used comprise(s) at least one acid function, the molar percentage of monomers bearing at least one weak acid function relative to all the monomers used being at least 30%, wherein:

Process for low-concentration, inverse emulsion polymerization of weakly neutralized polymers

A method for softening laundry employs a softening composition, which includes at least one thickener containing a cationic polymer obtained by polymerization: wherein

Thickener containing a cationic polymer and softening composition containing said thickener, in particular for textiles

The present invention relates to polymer ic thickener compositions comprising at least one water-swellable crosslinked copolymer, a process for preparing such compositions and their use as a thickener, e.g., in cosmetic, dermatologic, pharmaceutical or veterinary formulations. The water-swellable crosslinked copolymer according to the present invention is prepared from a mixture comprising (a) acrylamide, (b) an acrylamidoalkylsulfonic acid and/or a salt thereof and (c) an amine-based polyfunctional crosslinking agent comprising at least three allylic functions.

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Lezigneux, France

Frédéric Blondel