A61K2800/654

COMPOSITION COMPRISING POLYMER PARTICLES, A HYDROCARBON-BASED OIL AND A HYDROCARBON-BASED BLOCK COPOLYMER, AND PROCESS USING THE SAME

The present invention relates to a composition comprising particles of at least one polymer that is surface-stabilized with a stabilizer, the polymer of the particles being a C.sub.1-C.sub.4 alkyl (meth)acrylate polymer; the stabilizer being an isobornyl (meth)acrylate polymer chosen from isobornyl (meth)acrylate homopolymer and statistical copolymers of isobornyl (meth)acrylate and of C.sub.1-C.sub.4 alkyl (meth)acrylate present in an isobornyl (meth)acrylate/C.sub.1-C.sub.4 alkyl (meth)acrylate weight ratio of greater than 4, at least one hydrocarbon-based oil and at least one amorphous hydrocarbon-based block copolymer obtained by polymerization of at least one monomer of unsaturated hydrocarbon type comprising 2 to 5 carbon atoms and containing one or two ethylenic unsaturations. The invention also relates to a process for making up and/or caring for keratin materials, in which said composition is applied.

A PARTICLE ENCAPSULATING HYDROPHILIC OR AMPHIPHILIC BIOLOGICAL COMPOUNDS

Method for encapsulating a hydrophilic or amphiphilic biological compound, particles obtained by said method, compositions comprising them and uses thereof are disclosed.

METHOD OF PREPARING A DEGRADABLE PRODUCT
20230192944 · 2023-06-22 ·

Provided is a degradable microparticle with a grain size in a range of 2 micrometers to 1400 micrometers, and the degradable microparticle comprises poly(glycerol sebacate), poly(glycerol maleate), poly(glycerol succinate-co-maleate), poly(glycerol succinate), poly(glycerol malonate), poly(glycerol glutarate), poly(glycerol adipate), poly(glycerol pimelate), poly(glycerol suberate), poly(glycerol azelate), or any combination thereof. A degradable product produced from the degradable microparticles can obtain the desired degradation effect and can be produced by chemical synthesis to reduce the production cost. With these advantages, the applicability of the degradable microparticles is improved.

CHEMICALLY ASYMMETRIC ANISOTROPIC POWDER AND WATER-IN-OIL (W/O) EMULSIFICATION COMPOSITION CONTAINING SAME

Disclosed are a chemically asymmetric anisotropic powder, a stabilized water-in-oil (W/O) emulsification composition containing the same, and a method for preparing the same. The composition contains a chemically asymmetric anisotropic powder that forms emulsification particles with a stabilized interface film and various sizes, thereby providing a stabilized W/O emulsification composition having a low-viscosity formulation, which has a significantly lighter feeling of use than existing W/O formulations.

COSMETIC COMPOSITION COMPRISING CELLODEXTRINS
20230181447 · 2023-06-15 ·

The invention relates to a cosmetic composition comprising a cellodextrin component comprising a cellosaccharide selected from the group consisting of cellobiose, cellotriose, cellotetraose, cellopentaose, cellohexaose, celloheptaose, cellooctaose, cellononaose, cellodecaose, celloundecaose, cellododecaose, and combinations thereof; and (i) a lipoid component comprising one or more natural or synthetic lipoids; and/or (ii) a surfactant component comprising an anionic surfactant, cationic surfactant, amphoteric surfactant, nonionic surfactant; and/or (iii) a thickening component; and/or (iv) a pigment component; or any combination thereof; wherein at least a portion of said cellodextrin component is present within the cosmetic composition in undissolved form.

Alkaline-swellable emulsion polymers
09828499 · 2017-11-28 · ·

Emulsion polymer particles comprising from 25 to 45 wt % polymerized residues of at least one C.sub.3-C.sub.6 carboxylic acid monomer and from 0.1 to 2 wt % polymerized residues of at least one crosslinker, wherein the particles have a Tg which occurs over a range of at least 60° C.

SPHERICAL MONODISPERSED POLYESTER RESIN AQUEOUS DISPERSION AND PRODUCTION METHOD THEREOF, AND SPHERICAL MONODISPERSED POLYESTER RESIN PARTICLES AND COSMETIC PRODUCT

The present invention provides spherical monodispersed polyester resin particles and an aqueous dispersion thereof in an easy and inexpensive way, and a cosmetic product having fine extensibility, which has fine water resistance and smooth touch, and does not provide uncomfortable feeling to the skin.

COMPOSITIONS, SYSTEMS AND METHODS FOR THE ENCAPSULATION AND DELIVERY OF A SUBSTANCE
20170304162 · 2017-10-26 ·

A composition and method is provided for synthesizing silicone particles with narrow size distributions and tunable degrees of crosslinking for encapsulation of an active ingredient or multiple active ingredients in the matrix of the particles for controlled release. The method comprises agitating at least one type of silane monomer having two, three or four siloxane bonds in an acidic aqueous solution under conditions sufficient to allow for hydrolysis of the monomers, adding a catalyst and a solution comprising a co-solvent and the active ingredient(s) to the acidic aqueous solution, and continuing to agitate the combined solution to allow for a condensation reaction and formation of silicone particles with a narrow size distribution encapsulating at least a portion of the active ingredient(s). The tunable degree of crosslink density of the particles formed is based on the ratios of the monomers used, which enables controlled release of the active ingredient(s) from the particles.

COSMETIC COMPOSITION CONTAINING COMBINATION OF DISPERSION OF ACRYLIC POLYMER PARTICLES, THERMOPLASTIC ELASTOMER AND SEMI-CRYSTALLINE POLYMERS
20170304181 · 2017-10-26 · ·

The present invention relates to a cosmetic composition comprising a dispersion of acrylic polymer particles, a thermoplastic elastomer, a semi-crystalline polymer and an organic solvent. The compositions of the present invention may optionally contain at least one colorant. The invention also relates to a method for making up and/or enhancing the appearance of a keratinous substrate, in particular lashes, by applying these compositions to the keratinous substrate.

Personal care composition comprising particles

Disclosed is a personal care composition comprising: a) particle comprising chitosan salt at the outer surface of the particle; and b) silicone component selected from dimethicone, aminosilicone or a mixture thereof, wherein the silicone component has a viscosity of at least 5,000 cSt at 25° C.