HYDROPHILIC SILICON PARTICLES WITH IMPROVED HEAT RESISTANCE AND FEEL, AND PREPARATION METHOD THEREFOR

• Main Authors: PARK, JIN SEONG, KIM, JI-WOONG, KIM, YOUNG BAEK
• Format: Patent
• Language: English; French; Korean
• Published: 27.03.2014
• Subjects: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM; ADHESIVES; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; COMPOUNDS THEREOF; CORRECTING FLUIDS; DYES; FILLING PASTES; HUMAN NECESSITIES; HYGIENE; INKS; INORGANIC CHEMISTRY; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MEDICAL OR VETERINARY SCIENCE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-METALLIC ELEMENTS; ORGANIC CHEMISTRY; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; POLISHES; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS; THEIR PREPARATION OR CHEMICAL WORKING-UP; THEIR RELEVANT APPARATUS; TRANSPORTING; USE OF MATERIALS THEREFOR; WOODSTAINS

The present invention relates to hydrophilic silicon particles comprising, on the surface thereof, 1-30 mol% of one or more types of components selected from the group consisting of: (a) a partially hydrolyzed silsesquioxane (T2) or silica (Q3) containing one hydroxyl group; (b) a partially hydrolyzed silsesquioxane (T1) or silica (Q2) containing two hydroxyl groups; (c) a silica (Q1) containing three hydroxyl groups; and (d) a hydrolyzed disiloxane (D1) containing a hydroxyl group, core-shell particles comprising: a core comprising the hydrophilic silicon particles; and a shell encompassing the surface of the core, comprising silica, hydroxysilica or titanium dioxide, and a preparation method therefor. According to the present invention, the particles are readily dispersed in water due to water absorption and hydrophilicity and have excellent compatibility, heat resistance, and feel, and thus can be introduced into various formulations of cosmetic products. Accordingly, it is possible to prepare a cosmetic composition or an emulsion containing the particles of the present invention. La présente invention concerne des particules hydrophiles de silicium comprenant, sur leur surface, de 1 à 30 % en moles d'un ou plusieurs types de constituants choisis dans le groupe constitué par : (a) un silsesquioxane hydrolysé en partie (T2) ou de la silice (Q3) contenant un groupe hydroxyle ; (b) un silsesquioxane hydrolysé en partie (T1) ou de la silice (Q2) contenant deux groupes hydroxyle ; (c) de la silice (Q1) contenant trois groupes hydroxyle ; et (d) un disiloxane hydrolysé (D1) contenant un groupe hydroxyle, des particules cœur-écorce comprenant : un cœur comprenant les particules hydrophiles de silicium ; et une écorce englobant la surface du cœur, comprenant de la silice, une hydroxysilice ou du dioxyde de titane, et leur procédé de préparation. Selon la présente invention, les particules sont facilement dispersées dans l'eau grâce à leur adsorption de l'eau et leur hydrophilie et présentent d'excellentes propriétés de compatibilité, de résistance à la chaleur, et de toucher, et peuvent ainsi être introduites dans diverses formulations de produits cosmétiques. Par conséquent, il est possible de préparer une composition cosmétique ou une émulsion contenant les particules de la présente invention.