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1. WO2009053287 - NEW PROCESS FOR THE PREPARATION OF INVERSE LATEX OF ACRYLAMIDE-BASED POLYMERS AND COMPOSITION COMPRISING SAID LATEX

Publication Number WO/2009/053287
Publication Date 30.04.2009
International Application No. PCT/EP2008/063876
International Filing Date 15.10.2008
IPC
C08F 220/56 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
220Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide, or nitrile thereof
02Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
52Amides or imides
54Amides
56Acrylamide; Methacrylamide
C08F 2/32 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
2Processes of polymerisation
32Polymerisation in water-in-oil emulsions
C08L 33/26 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
33Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Compositions of derivatives of such polymers
24Homopolymers or copolymers of amides or imides
26Homopolymers or copolymers of acrylamide or methacrylamide
CPC
A61K 47/32
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
47Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
30Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
32Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. carbomers ; , poly(meth)acrylates, or polyvinyl pyrrolidone
A61K 8/8158
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8Cosmetics or similar toilet preparations
18characterised by the composition
72containing organic macromolecular compounds
81obtained by reactions involving only carbon-to-carbon unsaturated bonds
8141Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
8158Homopolymers or copolymers of amides or imides, e.g. (meth) acrylamide; Compositions of derivatives of such polymers
A61K 8/8188
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8Cosmetics or similar toilet preparations
18characterised by the composition
72containing organic macromolecular compounds
81obtained by reactions involving only carbon-to-carbon unsaturated bonds
8188Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bonds, and at least one being terminated by a bond to sulfur or by a hertocyclic ring containing sulfur; Compositions of derivatives of such polymers
A61Q 1/02
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
QSPECIFIC USE OF COSMETICS OR SIMILAR TOILET PREPARATIONS
1Make-up preparations; Body powders; Preparations for removing make-up
02Preparations containing skin colorants, e.g. pigments
A61Q 1/04
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
QSPECIFIC USE OF COSMETICS OR SIMILAR TOILET PREPARATIONS
1Make-up preparations; Body powders; Preparations for removing make-up
02Preparations containing skin colorants, e.g. pigments
04for lips
A61Q 1/14
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
QSPECIFIC USE OF COSMETICS OR SIMILAR TOILET PREPARATIONS
1Make-up preparations; Body powders; Preparations for removing make-up
14Preparations for removing make-up
Applicants
  • SOCIETE D'EXPLOITATION DE PRODUITS POUR LES INDUSTRIES CHIMIQUES SEPPIC [FR]/[FR] (AllExceptUS)
  • SCOTT BADER COMPANY LIMITED (AllExceptUS)
  • MALLO, Paul [FR]/[FR] (UsOnly)
  • BRAUN, Olivier [FR]/[FR] (UsOnly)
  • GUY, François [FR]/[FR] (UsOnly)
  • BONNARDEL, Audrey [FR]/[FR] (UsOnly)
Inventors
  • MALLO, Paul
  • BRAUN, Olivier
  • GUY, François
  • BONNARDEL, Audrey
Agents
  • CONAN, Philippe
Priority Data
07301490.425.10.2007EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) NEW PROCESS FOR THE PREPARATION OF INVERSE LATEX OF ACRYLAMIDE-BASED POLYMERS AND COMPOSITION COMPRISING SAID LATEX
(FR) NOUVEAU PROCÉDÉ POUR LA PRÉPARATION D'UN LATEX INVERSE DE POLYMÈRES À BASE D'ACRYLAMIDE ET COMPOSITION COMPRENANT LEDIT LATEX
Abstract
(EN)
Process for the preparation of a composition comprising an oil phase, an aqueous phase, at least one emulsifying system of water-in-oil (W/O) type, optionally at least one emulsifying system of oil-in-water (O/W) type, in the form of an inverse latex comprising from 20% to 70% by weight and preferably from 25% to 50% by weight of a branched or crosslinked polyelectrolyte, characterized in that the said polyelectrolyte is a copolymer of 2-acrylamido-2-methylpropanesulfonic acid partially or totally salified with acrylamide and optionally one or more monomers chosen from monomers containing a partially or totally salified weak acid function and/or from neutral monomers other than acrylamide, said production process being characterized in that the preparation of said aqueous phase comprises the dissolution in the aqueous medium of solid 2-acrylamido- 2-methyl propanesulfonic acid before neutralization. Cosmetic, dermopharmaceutical or pharmaceutical composition comprising the inverse latex directly obtained by said process.
(FR)
L'invention porte un procédé de préparation d'une composition comprenant une phase huileuse, une phase aqueuse, au moins un système émulsifiant de type eau-dans-huile (E/H), facultativement au moins un système émulsifiant de type huile-dans-eau (H/E), sous la forme d'un latex inverse comprenant de 20 % à 70 % en poids et de préférence de 25 % à 50 % en poids d'un polyélectrolyte ramifié ou réticulé, caractérisé par le fait que ledit polyélectrolyte est un copolymère d'acide 2-acrylamido-2-méthylpropanesulfonique partiellement ou totalement salifié par l'acrylamide et facultativement un ou plusieurs monomères choisis parmi des monomères contenant une fonction acide faible partiellement ou totalement salifiée et/ou parmi des monomères neutres autres que l'acrylamide, ledit procédé de fabrication étant caractérisé par le fait que la préparation de ladite phase aqueuse comprend la dissolution dans le milieu aqueux d'acide 2-acrylamido-2-méthylpropanesulfonique solide avant neutralisation. L'invention porte également sur une composition cosmétique, dermopharmaceutique ou pharmaceutique comprenant le latex inverse directement obtenu par ledit procédé.
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