摘要:
A self-reversible reverse microlatex composition comprising an oil phase, an aqueous phase, a water-in-oil surfactant(s), a oil-in-water surfactant(s) and 15% to 40% by weight by weight of a branched or crosslinked polyelectrolyte. The polyelectrolyte is based on a monomer containing a strong or weak acid function, which is partially or totally salified, a copolymer of at least one monomer containing a strong acid function and at least one monomer containing a weak acid function or at least one neutral monomer, a copolymer of at least one monomer containing a weak acid function and at least one neutral monomer, or a copolymer of at least one monomer containing a strong acid function, a monomer containing at least one weak acid function and at least one neutral monomer. The surfactants have a total HLB number of 8.5 to 11. Uses in cosmetics and as an industrial emulsifier and/or thickener.
摘要:
A self-reversible reverse microlatex composition comprising an oil phase, an aqueous phase, a water-in-oil surfactant(s), a oil-in-water surfactant(s) and 15% to 40% by weight by weight of a branched or crosslinked polyelectrolyte. The polyelectrolyte is based on a monomer containing a strong or weak acid function, which is partially or totally salified, a copolymer of at least one monomer containing a strong acid function and at least one monomer containing a weak acid function or at least one neutral monomer, a copolymer of at least one monomer containing a weak acid function and at least one neutral monomer, or a copolymer of at least one monomer containing a strong acid function, a monomer containing at least one weak acid function and at least one neutral monomer. The surfactants have a total HLB number of 8.5 to 11. Uses in cosmetics and as an industrial emulsifier and/or thickener.
摘要:
A self-reversible reverse microlatex composition comprising an oil phase, an aqueous phase, at least one W/O surfactant, at least one O/W surfactant, and a branched or a crosslinked polyelectrolyte, wherein the W/O surfactant and the O/W surfactant mixture have a HLB from about 9.5 to about 10, and the polyelectrolyte is either a homopolymer or copolymer or a combination thereof based on at least one monomer containing a strong or weak acid function. Further, the composition may be used in the cosmetic, dermopharmaceutical, pharmaceutical, textile, paper, and/or paint industries, or as a thickener for printing pastes based on pigments or dyes.
摘要:
The invention concerns a branched or crosslinked linear polymer obtainable by polymerising N-alkyl acrylamide, wherein the alkyl radical is linear or branched and comprises 1 to 6 carbon atoms, with one or several monomers selected among the cationic monomers or monomers comprising at least a strong acid function partly salified or completely salified. The invention also concerns a method for preparing same and microlatex or positive latex containing same and their use as heat-thickening agent.
摘要:
The invention concerns a linear or crosslinked polymer, characterized in that it is obtainable either by copolymerizing N-[2-hydroxy-1,1-bis(hydroxymethyl)-ethyl]-propenamide, or by copolymerizing N-[2-hydroxy-1,1-bis(hydroxymethyl)ethyl][-propenamide with one or several monomers selected among cationic monomers, monomers comprising at least a strong acid function, partly salified or completely salified, monomers comprising at least a weak acid function, partly salified or completely salified or neutral monomers. The invention also concerns inverse latex or microlatex containing such a polymer. The invention further concerns the uses of said polymer in cosmetic or pharmaceutical compositions, as thickening agents in industrial or household detergents, as additives for assisted recovery of oil, as rheology modifier for drilling fluid or as flocculants for water treatment.
摘要:
The invention concerns a linear or crosslinked polymer, characterized in that it is obtainable either by copolymerizing N-[2-hydroxy-1,1-bis(hydroxymethyl)-ethyl]-propenamide, or by copolymerizing N-[2-hydroxy-1,1-bis(hydroxymethyl)ethyl][-propenamide with one or several monomers selected among cationic monomers, monomers comprising at least a strong acid function, partly salified or completely salified, monomers comprising at least a weak acid function, partly salified or completely salified or neutral monomers. The invention also concerns inverse latex or microlatex containing such a polymer. The invention further concerns the uses of said polymer in cosmetic or pharmaceutical compositions, as thickening agents in industrial or household detergents, as additives for assisted recovery of oil, as rheology modifier for drilling fluid or as flocculants for water treatment.
摘要:
Process for the preparation of a composition in the form of an inverted latex, comprising an oil phase, an aqueous phase, at least one emulsifier of water-in-oil (W/O) type, at least one emulsifier of oil-in-water (O/W) type, from 20% to 70% by weight, and preferably from 25% to 45% by weight, of a branched or crosslinked anionic polyelectrolyte based on a monomer possessing a strongly acidic function, characterized in that a) an aqueous solution containing the monomers and the optional additives and adjusted beforehand to a pH below 4 is emulsified in an oil phase in the presence of one or more emulsifiers of water-in-oil type, b) the polymerization reaction is initiated by introducing a free-radical initiator into the emulsion formed in a), after which the reaction is left to proceed, c) when the polymerization reaction is complete, one or more emulsifiers of oil-in-water type are introduced at a temperature below 50° C.
摘要:
Composition comprising an oil phase, an aqueous phase, at least one emulsifier of water-in-oil (W/O) type, at least one emulsifier of oil-in-water (O/W) type, characterized in that the composition is an inverted latex comprising from 20% to 60% by weight, and preferably from 25% to 45% by weight, of a branched or crosslinked anionic polyelectrolyte based on at least one monomer possessing a strongly acidic function, copolymerized either with at least one monomer possessing a weakly acidic function or with at least one neutral monomer. The compositions have cosmetic applications.
摘要:
Use of a composition having an oil phase, an aqueous phase, at least one emulsifier of water-in-oil (W/O) type and at least one emulsifier of oil-in-water (O/W) type, in the form of a reverse latex comprising from 20% to 70% by weight, and preferably from 25% to 40% by weight, of an anionic polyelectrolyte, the anionic polyelectrolyte being based on partially neutralized acrylic acid, which may be branched and/or crosslinked, to prepare a cosmetic, dermopharmaceutical or pharmaceutical composition. Novel lattices, process for their preparation and cosmetic, dermopharmaceutical or pharmaceutical composition incorporating them.
摘要:
Composition comprising an oil phase, an aqueous phase, at least one emulsifying agent of water-in-oil (W/O) type and at least one emulsifying agent of oil-in-water (O/W) type in the form of a self-invertible 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 either a homopolymer based on a monomer having a partially or completely salified strong acid functional group or a copolymer based on at least one monomer having a partially or completely salified strong acid functional group copolymerized with acrylamide and characterized in that the constituent solvent of the oil phase is chosen from white mineral oils, squalane, hydrogenated polyisobutene, isohexadecane or isododecane. Cosmetic, dermocosmetic, dermopharmaceutical or pharmaceutical composition comprising them.