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 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:
Polyelectrolyte resulting from polymerization, for 100 mol %, of: a) a molar ratio ≧50% and ≦99% of monomer units originating from at least one cationic monomer; b) a molar ratio >1% and ≦50% of monomer units originating from at least one monomer including a fully or partially salified free weak acid function; c) optionally a molar ratio >0 mol % and ≦5 mol % of monomer units originating from at least one monomer of formula A-C(═O)—O—[(CH2—CH(R1)—O]n—R (I), where n is, independently, a number from 1 to 50, A is a monovalent unsaturated aliphatic radical having 2 to 6 carbon atoms, R1 is a hydrogen atom, a methyl radical, or an ethyl radical, and R is a linear or branched, saturated or unsaturated aliphatic hydrocarbon radical having 8 to 30 carbon atoms; and d) optionally a molar ratio >0% and ≦1% of a diethylene or polyethylene cross-linking monomer.
摘要:
Disclosed is a self-reversible reverse latex including: a) 25-80% by mass of a cross-linked anionic polyelectrolyte (P), resulting from the polymerisation, for 100 mole percent: i)—of a molar proportion 30% and 95% of monomeric units from at least one monomer including a free, partially- or totally-salified strong acid function; and ii)—of a molar proportion >0% and
摘要:
A novel composition made of polyalkoxylated derivatives of trimethylolpropane and fatty alcohols, the composition lending itself to the preparation thereof and to the use thereof as a reversing agent for a reversible reverse latex.
摘要:
Process for the preparation of a an inverse latex including from 20% to 70% by weight and preferably from 25% to 50% by weight of a branched or crosslinked polyelectrolyte, characterized in that the 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, the production process including the control of the pH in the initial aqueous phase; Cosmetic, dermopharmaceutical or pharmaceutical composition including the inverse latex directly obtained by the process.
摘要:
Method for preparing an anionic polyelectrolyte including up to 95 mol % of monomer units from 2-methyl 2-[(1-oxo 2-propenyl) amino] 1-propanesulfonic acid that is totally salified in the form of sodium salt, up to 90 mol % of at least one neutral monomer, and optionally up to 10 mol % of at least one monomer of formula (I): where: R1 is a hydrogen atom or a methyl radical, R is an alkyl radical, and n is a number greater than or equal to 1 and less than or equal to 50, the method including: a) preparing a reaction mixture containing, in a solvent (S), 2-methyl 2-[(1-oxo 2-propenyl) amino] 1-propanesulfonic acid, the neutral monomer(s), the neutralizing agent, and optionally, the monomer(s) of formula (I); and b) polymerizing the reaction mixture. The polyelectrolyte can be used as a thickening and/or stabilizing and/or emulsifying agent for a cosmetic, dermopharmaceutical or pharmaceutical topical composition.