Abstract:
PURPOSE: A manufacturing method of an amphiphilic block copolymer is provided to simplify synthesis of a RAFT polymerization method which can accurately control molecular weight without a metallic catalyst, and to obtain uniform size distribution. CONSTITUTION: An amphiphilic block copolymer comprises polyester as a hydrophobic block, and polyphosphoryl choline as a hydrophilic block. A manufacturing method of the amphiphilic block copolymer comprises: a step of polymerizing a polyester block through ring-opening polymerization; a step of adding a chain-moving reactant into the polyester block; and a step of adding phosphoryl choline into the polyester block, and polymerizing a polyester-polyphosphoryl chlorine block copolymer by a living radical method.
Abstract:
본 발명은 해조류 섬유를 유효성분으로 함유하는 화장료 조성물에 관한 것으로, 보다 상세하게는 해조류 섬유를 함유함으로써 피부 보습을 향상시키며, 유해물질을 흡착하고, 해조류의 천연 영양 성분을 피부에 전달할 수 있으며 화장료의 점도와 경도를 향상시킬 수 있는 화장료 조성물에 관한 것이다. 해조류 섬유, 해조류 펄프, 화장품, 스킨케어, 보습, 황사, 흡착, 세정제, 천연 다공성 섬유
Abstract:
본 고안은 충격파 미용기기에 관한 것으로, 구동모터에 의한 연속적인 회전 구동에 의해 단속적으로 탄성 압착되는 탄성스프링의 탄성력에 의해 충격해머가 일정 주기로 충격전달부를 타격하도록 구성됨으로써, 기계적인 메카니즘에 의해 충격파가 발생되어 구조가 단순하고 부품수 및 제작 비용이 감소하며 제작이 용이하고, 특히 충격파에 의한 지방세포 파괴 능력이 우수한 형태의 충격파 미용기기를 제공한다. 충격파, 미용기기, 탄성스프링, 충격해머
Abstract:
PURPOSE: A cosmetic composition containing sea algae fiber as an active ingredient is provided to remove harmful materials by adsorbing and transfer natural nutrition ingredients. CONSTITUTION: A cosmetic composition contains 0.01-20 weight% of sea algae fiber as an active ingredient. The sea algae fiber is obtained from green laver, chlorella, cosmarium, closterium, hearing and green laver including gelidium amansii, gracilaria, the nose soil. The supino island, gigartina, laver, injury, the glue plant, pterocladia, acanthopeltis japonica, gracilaria, visible gelidium jelly, ceramium kondoi, brown seaweed, laminaria japonica, gulfweed, ecklonia cava, and ecklonia stolonifera. The cosmetic composition is used in the form of skin softener, massage cream, lotion, ointment, gel, lipstick, mascara, cleansing oil, cleansing cream, spray, powder, foundation, eye shadow, foam cleanser or shampoo.
Abstract:
3,5-Dihydroxy benzamide derivatives are provided to whiten the skin due to a depigmenting activity and improve stability in aqueous solution and organic solvent in formulation by inhibiting structure change. A cosmetic composition for whitening the skin comprises 0.01-20 wt.% of 3,5-dihydroxy benzamide derivatives represented by a formula(1), wherein a hydroxyl group is located in the 2,3-, 2,4-, 2,5-, 3,4- or 3,5-site, and is used in forms of emulsion, cream, cosmetic lotion, essence, pack, gel, powder, makeup base, foundation, lotion, ointment, patch, beauty solution, cleansing foam, cleansing cream, cleansing water, body lotion, body cream, body oil, body essence, shampoo, rinse, body cleanser, soap, hair dye or spray.
Abstract:
A hydroxamic acid derivative is provided to induce the activity increase of each promoter of IDH3alpha and CPT1 involving with energy consumption metabolism, thereby being usefully used for preventing or treating diseases related to dyslipidemia such as obesity, hyperlipidemia and diabetes. A hydroxamic acid is represented by a formula(1), wherein R1 is CONH, NHCO, CONR4 or NR4CO(where R4 is H or C1-10 alkyl); R2 is -(CH2)n-(where n is 0 or 1); and R3 is H or C1-10 alkyl. A method for preparing the hydroxamic acid comprises the steps of: (a) reacting an anhydrous compound synthesized by reacting ethyl chloroformate with piperonic acid using pyridine or N-methyl morpholine as a solvent with methyl 4-amino benzoate or 4-amino phenyl acetic acid ethyl ester at a temperature of 10-20 deg.C using pyridine or N-methyl morpholine as a solvent to prepare a benzamide compound; (b) reacting the benzamide with an alkyl halide selected from the group consisting of bromomethane, bromoethane, bromopropane, bromo isopropane, bromo butane, and bromo tert-butane to substitute an amide bond of the benzamide with an alkyl group; (c) hydrolyzing methyl ester in the benzamide obtained from the step(a) or the benzamide compound obtained from the step(b) to prepare an acid and reacting the acid with ethyl chloroformate using pyridine or N-methyl morpholine as a solvent to covert the acid into an anhydrous compound; and (d) reacting the anhydrous compound with hydroxyl amine chloride or N-methyl hydroxyl amine chloride at a temperature of 0-10 deg.C using pyridine or N-methyl morpholine as a solvent to obtain the product of the formula(1). An agent for anti-obese, treating diabetes or hyperlipidemia comprises the hydroxamic acid.
Abstract:
A skin external composition comprising a cathepsin G inhibitor is provided to prevent an adhesion protein from being degraded by intrinsic aging and photo-aging, reduce the production of metalloproteinase and inhibit the activity of metalloproteinase, thereby being more potent anti-aging substance than existing anti-aging substances. A method for screening anti-aging materials is provided to develop the anti-aging materials which effectively inhibit the quantitative and qualitative increase of metalloproteinase, resulting from the degradation of an adhesion protein by cathepsin G in skin cells without direct UV irradiation. A skin external composition for preventing skin aging comprises 0.01-10 wt% a cathepsin G inhibitor as an effective ingredient, wherein the cathepsin G inhibitor is at least one selected from the group consisting of compounds represented by formulae(1) to (4). The composition is formulated into skin lotion, astringent lotion, milk lotion, nourishing cream, essence, massage cream, eye cream, pack, body lotion, body cream, body oil or body essence. A method for screening an anti-aging material comprises the steps of: (a) adding an anti-aging candidate material to a substrate in the presence of cathepsin G enzyme; and (b) measuring the inhibition of activity of the cathepsin G enzyme. Further, the measure of the inhibition of activity of the cathepsin G enzyme is performed by measuring a concentration of a produced metalloprotease.
Abstract:
Provided is a 3,5-dihydroxybenzoic acid derivative, which shows an elastase inhibitory effect and an excellent effect of scavenging free radicals generated by UV irradiation, has an excellent anti-aging effect, and is useful for an anti-aging cosmetic composition. The 3,5-dihydroxybenzoic acid derivative is a compound represented by a formula 1, substituted with hydroxyl groups at 3,5-position thereof and the amide group being substituted with a bulky substituent. The 3,5-dihydroxybenzoic acid derivative is obtained by the method comprising the steps of: (A) reacting 3,5-dihydroxybenzoic acid with acetic anhydride to form 3,5-diacetyloxybenzoic acid; (B) forming an amide compound from the 3,5-diacetyloxybenzoic acid by using ethyl chloroformate and an oleophilic group; and (C) hydrolyzing the acetyl group of the amide compound to provide a 3,5-dihydroxybenzoic acid derivative.
Abstract:
본 발명은 펜타에리스리톨 유도체가 포집된 메조포러스 다공성 실리카 복합 분체 및 그 제조방법에 관한 것으로서, 보다 상세하게는 높은 흡유량을 가진 다공성 실리카에 피부 각질층의 수분 유지 능력을 향상시키고, 특히 건조환경에서도 높은 보습력을 보이는 펜타에리스리톨 유도체가 포집된 메조포러스 다공성 실리카 복합 분체 및 그 제조방법에 관한 것이다. 펜타에리스리톨 유도체, 수분유지능력, 보습력, 다공성 실리카