Abstract:
A method for economically preparing a mesoporous molecular sieve material through a more simplified preparing process while maintaining structural uniformity of the mesoporous silica material by substituting metal elements within the skeleton of a mesoporous silica material, and a molecular sieve material prepared by the method are provided. A method for preparing a mesoporous molecular sieve material in which metal elements are substituted within a skeleton structure comprises the steps of: (A) dissolving a surfactant into distilled water, dissolving a metal precursor into an acid, and mixing the dissolved solutions with each other; (B) adding a precursor into the mixture obtained in the step(A), neutrally adjusting pH of the mixture, and subjecting the pH adjusted mixture to hydrothermal reaction; (C) filtering, cleaning and drying the material obtained in the step(B); and (D) calcining the material obtained in the step(C) to remove the surfactant from the material, wherein a silica to substituted metal ratio is in a range from 5:1 to 20:1 within the skeleton of a mesoporous silica powder substituted for the metal elements. The metal precursor is at least one selected from the group consisting of titanium alkoxide, titanium sulfate, titanium tetrachloride(TiCl4), zinc tetrachloride(ZnCl4) and zinc acetate.
Abstract:
The present invention relates to a cosmetic composition containing stratum corneum lipid, water, lower alcohol, and a surfactant having a hydrophile-lipophile balance (HLB) of 0.1-4 or 12-18, and to a method to stabilize stratum corneum lipid, comprising the steps of: mixing and dissolving the stratum corneum lipid, lower alcohol, and a surfactant; and adding water to the mixture.
Abstract:
본 발명은 합성 마이카에 표면 구조체를 형성하는 방법에 관한 것으로서, 보다 상세하게는 용매의 농도, 온도 및 반응시간 등을 조절함으로써 원료 자체의 광택을 줄여 제품 내에서의 번들거림을 해소하고, 피지 흡유에 의한 화장의 칙칙함 및 붕괴를 방지하기 위하여 흡유도를 증가시키도록 합성 마이카에 표면 구조체를 형성하는 방법에 관한 것이다. 표면구조체, 광택도, 흡유도
Abstract:
PURPOSE: A makeup cosmetic composition of oil-in-water/water-in-oil type is provided to enhance pigment dispersion stability. CONSTITUTION: A makeup cosmetic composition contains 20-45 weight% of xanthan gum, 5-20 weight% of carrageenan gum, and 35-75 weight% of locust bean gum. The makeup cosmetic composition contains soluble organic tackifier of natural polymers. The soluble tackifer has an organic tackifier containing inorganic metal oxide and an organic tackifier containing soluble polymers. The cosmetic composition is manufactured in the form of foundation, makeup base, and primer.
Abstract:
Porous silica complex powder is provided to have an excellent performance in moisturizing and water retention, by adsorbing or collecting pentaerythritol derivatives and higher alcohol or polyol on porous silica. Complex powder is prepared by adsorbing or collecting pentaerythritol derivatives and higher alcohol or polyol containing 16-22 carbons on porous silica. The higher alcohol is 2-octyl dodecanol. The polyol is selected from a group consisting of dipropylene glycol, a sorbitols solution, glycerol, molasses, polyethylene glycol, glucose, propylene glycol, and 1,3-butylene glycol. The pentaerythritol derivatives and the higher alcohol or the polyol are mixed at a weight ratio of 1:0.1-0.6. Further, a particle size of the complex powder is 0.2-50mum, and a pore of the complex powder is 1-50nm.
Abstract:
A composite powder, and a cosmetic composition containing the composite powder are provided to improve water content, moisturizing effect and moisturizing power keeping effect. A composite powder comprises porous silica; and a mixture of a pentaerythritol derivative and water which is adsorbed to and trapped in the porous silica. Preferably the mixture comprises further a C16-C22 alcohol; and/or glycerin. Preferably the pentaerythritol derivative is represented by the formula 1, wherein R is independently identical or different one another and is H, or a C1-C24 saturated or unsaturated and linear or branched alkyl group containing or not containing a hydroxyl group; m is identical or different one another and is an integer of 0-10; and n is identical or different one another and is an integer of 1-10.