The present invention relates to a hemispherical polymethylmethacrylate bead, wherein the hemispherical polymethylmethacrylate bead of the invention has high adhesive property and oil absorption when applied to cosmetics, medical supply, household items, display devices, lighting fixtures, and miscellaneous goods and especially, it enables cheerful color when applied to cosmetics in comparison with spherical polymethylmethacrylate beads.
C08L 29/04 - Alcool polyvinyliqueHomopolymères ou copolymères d'esters partiellement hydrolysés d'alcools non saturés avec des acides carboxyliques saturés
The present invention relates to esterquat and to a method for preparing same. More particularly, the present invention relates to esterquat and to a fabric softener comprising same, wherein the esterquat allows the fabric softener to have 300 to 600 cps, which is a significantly increased value compared to when a conventional esterquat (EQ) is used during preparation, and can increase the long-term stability and usability of the fabric softener by having a low content of unconverted glyceride, glyceryl ester, or a mixture thereof.
The present invention relates to a method of preparing a fabric softener and to a fabric softener prepared thereby, and more particularly, to a method of preparing a fabric softener containing an esterquat by performing a two-step transesterification reaction on oil and tertiary hydroxyalkyl amine at a low temperature in a high vacuum state under specific conditions, and then quaternizing the resultant product. The method of preparing a fabric softener containing an esterquat according to the present invention can reduce the content of unconverted glyceride, glyceryl ester, or a mixture thereof, and can provide a fabric softener with excellent long-term stability.
The present invention relates to a semispherical polymethyl methacrylate bead. The semispherical polymethyl methacrylate bead of the present invention has high tackiness and oil absorption when applied to cosmetics, medical products, household products, display products, lighting fixtures, and miscellaneous goods, and in particular, can have a more attractive color than conventional polymethyl methacrylate beads when applied to cosmetics.
C08F 20/18 - Esters des alcools ou des phénols monohydriques des phénols ou des alcools contenant plusieurs atomes de carbone avec l'acide acrylique ou l'acide méthacrylique
C08L 33/12 - Homopolymères ou copolymères du méthacrylate de méthyle
C08F 2/44 - Polymérisation en présence d'additifs, p. ex. plastifiants, matières colorantes, charges
The present invention relates to hemispherical polymethylmethacrylate beads, wherein hemispherical polymethylmethacrylate beads have high tackiness and oil absorption when applied to cosmetics, medical articles, household items, display products, illumination devices, and miscellanesous goods. Preferably, when applied to cosmetics, the hemispherical polymethylmethacrylate beads are a brighter color when compared to spherical polymethylmethacrylate beads.
C08L 33/12 - Homopolymères ou copolymères du méthacrylate de méthyle
A61K 8/81 - Cosmétiques ou préparations similaires pour la toilette caractérisés par la composition contenant des composés organiques macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons insaturées carbone-carbone
6.
NOVEL PRODUCTION METHOD FOR A COMPOSITE POWDER COMPRISING AN ULTRAVIOLET BLOCKER SURFACE-TREATED LAYER
The present invention relates to a production method for a composite powder comprising an ultraviolet blocker surface-treated layer, and, in the present invention, the composite powder comprising the ultraviolet blocker surface-treated layer is produced by means of a dry process that obviates the need for separate dewatering and drying processes, and the composite powder thus produced is advantageous when used in a cosmetic composition since the ultraviolet blocker is more evenly surface-treated on the powder surface such that it can exhibit a markedly better ultraviolet blocking effect than can a composite powder comprising an ultraviolet blocker surface-treated layer produced by means of a conventional wet process.
A61K 9/14 - Préparations médicinales caractérisées par un aspect particulier à l'état particulaire, p. ex. poudres
A61K 47/48 - Préparations médicinales caractérisées par les ingrédients non actifs utilisés, p.ex. supports, additifs inertes l'ingrédient non actif étant chimiquement lié à l'ingrédient actif, p.ex. conjugués polymère-médicament
A61K 8/02 - Cosmétiques ou préparations similaires pour la toilette caractérisés par une forme physique particulière
A61Q 17/04 - Préparations topiques pour faire écran au soleil ou aux radiationsPréparations topiques pour bronzer
7.
ZINC OXIDE/TITANIUM DIOXIDE COMPOSITE PARTICLES AND PREPARATION METHOD THEREOF
The present invention relates to zinc oxide/titanium dioxide composite particles, and a preparation method thereof. According to the present invention, the zinc oxide/titanium dioxide composite particles use titanium dioxide as a seed of which the size is greater than 100 nm, and zinc oxide is composed to the surface of said titanium dioxide, and thus the diameter of all single particles exceeds 100 nm. Therefore, there is no worry about being harmful to the human body due to particle size, the zinc oxide/titanium dioxide composite particles have a wide UV blocking range of not only the UVB range but also the UVA range, and a feeling of use is remarkably improved over known titanium dioxide, and thus the zinc oxide/titanium dioxide composite particles can be useful in a cosmetic material used for blocking ultraviolet rays.
The present invention relates to a method for preparing a fabric softener and to a fabric softener prepared using same, and more particularly, to a method for preparing a fabric softener containing esterquat by performing a two-step transesterification reaction on oil and tertiary hydroxyalkyl amine at a low temperature in a high vacuum state under specific conditions, and then quaternizing the resultant composition. The method for preparing a fabric softener according to the present invention can reduce the content of unconverted glyceride, glyceryl ester, or a mixture thereof, and can provide a fabric softener with excellent long-term stability.
D06M 13/368 - HydroxyalkylaminesLeurs dérivés, p. ex. bases de Kritchevsky
D06M 15/01 - Traitement des fibres, fils, filés, tissus ou articles fibreux faits de ces matières, avec des composés macromoléculairesUn tel traitement combiné avec un traitement mécanique avec des composés macromoléculaires naturels ou leurs dérivés
D06M 13/419 - Amides ayant des atomes d'azote de groupes amide substitués par des groupes hydroxyalkyle ou par des groupes hydroxyalkyle éthérifiés ou estérifiés
The present invention relates to a method for producing color polymer beads, and more particularly, to a method for producing color polymer beads with good colorant or/and dye dispersion, having a secondary particle size of about several nanometers for smooth and uniform surface covering ability, and capable of being uniformly coated with color in a single process so that the color does not fade.
POROUS POLYMETHYL METHACRYLATE POWDER CONTAINING FUNCTIONAL MATERIAL FOR COSMETICS, PREPARATION METHOD THEREOF, AND COSMETIC COMPOSITION CONTAINING SAME
The present invention relates to a porous polymethyl methacrylate powder for cosmetics comprising: (a) porous polymethyl methacrylate; and (b) a functional material for cosmetics impregnated into the porous polymethyl methacrylate, and a preparation method thereof. According to the composition, the porous polymethyl methacrylate powder can contain functional materials used in cosmetics (moisturization, ultraviolet screening, whitening, wrinkles reduction, and stimulus prevention) in large quantities without regard to the cosmetic formulation.
A61K 8/84 - Cosmétiques ou préparations similaires pour la toilette caractérisés par la composition contenant des composés organiques macromoléculaires obtenus par des réactions autres que celles faisant intervenir uniquement des liaisons insaturées carbone-carbone
A61K 8/02 - Cosmétiques ou préparations similaires pour la toilette caractérisés par une forme physique particulière
The present invention relates to a method for producing titanium dioxide powder having a silica-treated surface. The titanium dioxide powder produced by the method consists of particles, each of which has a diameter larger than 100 nm, and therefore removes concerns about harmful effects on the human body, which have been known as being caused by nanoscale particles. The titanium dioxide powder produced by the method has the ability of blocking ultraviolet rays over a wide range consisting of the ultraviolet A region as well as the ultraviolet B region. Further, the titanium dioxide powder produced by the method is provided with significantly improved feeling of use as compared to conventional nanoscale ultrafine titanium dioxide powder, and therefore can be effectively used in ultraviolet-blocking cosmetics.
The present invention relates to a method for preparing a modified powder, and more particularly, to a method for preparing a modified powder through a dry process, comprising: a) a step of dry-mixing powder, having a hydroxy group (-OH) at a terminal thereof, and lauroyl lysine in a reactor having an agitating device; and b) a step of agitating the mixture in the reactor so as to coat the surface of the powder with the lauroyl lysine.
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