KIM, Young Baek,김영백,JEONG, Goo Jin,정구진,KIM, In Whan,김인환
申请号：
KRKR2011/005243
公开号：
WO2012/008803A3
申请日:
2011.07.15
申请国别(地区):
WO
年份:
2012
代理人:
摘要：
The present invention relates to a method for preparing poly(organic oxidized silicon) particles containing an ultraviolet-absorbing group, comprising a step of enabling organoalkoxysilane precursors selected from a group consisting of organotrialkoxysilane, diorganoalkoxysilane and a mixture thereof, to react, in the presence of a base, to a silane compound selected from a group consisting of tetraalkoxysilane, alkyltrialkoxysilane, tetraalkoxysilane, aryltrialkoxysilane, dialkyldialkoxysilane, diaryldialkoxysilane, arylalkyldialkoxysilane and a mixture thereof, serving as a cross-linking regulator and an ultraviolet stability enhancing agent, so as to prepare poly(organic oxidized silicon) particles selected from a group consisting of polysilsesquioxane, silsesquioxane-siloxane copolymer, silsesquioxane-silica copolymer, silsesquioxane-siloxane-silica copolymer and silsesquioxane-siloxane copolymer, having an ultraviolet-absorbing group. The poly(oxidized silicon) particles of the present invention significantly solves the problem of poor ultraviolet stability, while maintaining the ultraviolet absorption of the ultraviolet-absorbing group contained in the particles at a predetermined level. The poly(oxidized silicon) particles containing an ultraviolet-absorbing group of the present invention are protected from a turbidity phenomenon, and therefore can be effectively used in cosmetics. According to the method of the present invention, poly(oxidized silicon) particles containing an ultraviolet-absorbing group can be prepared in an economically advantageous manner as compared to conventional methods.La présente invention concerne un procédé de préparation de particules de poly(silicium oxydé organique) contenant un groupe absorbant dans lultraviolet, comprenant une étape consistant à amener des précurseurs organoalcoxysilanes choisis dans un groupe consistant en organotrialcoxysilanes, diorganoalcoxysilanes et un mélange de ceux-ci, à réagir, en présence dune base,
