Novel Derivatives of Cyclic Compound And The Use Thereof
申请人:Cho Hyun Chul
公开号:US20100022461A1
公开(公告)日:2010-01-28
Disclosed is tonovel cyclic derivatives having potent inhibiting effect on melanin formation and skin hyper-pigmentation activity with no adverse response to skin. They can be used as the therapeutics for treating and preventing the skin disease caused by over-reproduced melanin.
Design and synthesis of new ultra-low band gap thiadiazoloquinoxaline-based polymers for near-infrared organic photovoltaic application
作者:M. L. Keshtov、S. A. Kuklin、N. A. Radychev、A. Yu. Nikolaev、E. N. Koukaras、Abhishek Sharma、G. D. Sharma
DOI:10.1039/c5ra24364e
日期:——
Two D–A copolymers, F1 and F2, with fluorene and thiazole units were substituted, respectively, on a thiadiazoloquinoxaline (TDQ) unit to enhance the electron-accepting strength of TDQ. The copolymers were synthesized by a cross-coupling Stille reaction and their optical and electrochemical properties were examined, which revealed that they have ultra-low band gaps and absorption in the near-infrared
Polyol polymers, meso-erythritol polymers and their aliphatic acid esters and aliphatic ethers
申请人:——
公开号:US20030017132A1
公开(公告)日:2003-01-23
A polyol polymer having a greater number of hydroxy groups, an aliphatic acid ester of a polyol polymer having a greater number of hydroxy groups, and an aliphatic ether of a polyol polymer having a greater number of hydroxy groups are provided. A polymer obtained by polymerizing a polyol containing meso-erythritol, and an aliphatic acid ester and an aliphatic ether of the polymer are provided.
An oil-based cosmetic preparation contains (a) an oily gelling agent, (b) an oil-based ingredient, and (c) at least one selected from the group consisting of ester compounds represented by formula (I) which are reaction products of ditrimethylolpropane with fatty acid, polycondensates of ditrimethylolpropane with polycarboxylic acid, polycondensates of the ester compound of formula (I) with polycarboxylic acid, polycondensates of fatty acid with the polycondensate of ditrimethylolpropane with polycarboxylic acid, and polycondensates of ditrimethylolpropane, fatty acid and polycarboxylic acid, with the component (c) having a hydroxyl value (OHV) in the range of 10 to 150. The oil-based cosmetic preparation has excellent feeling realized by the use, provides a make-up coverage with satisfactory luster and moisturizing feel, and exhibits excellent shape retention properties.
Cosmetic Composition Comprising Beta-Fructosyl-L-Ascorbic Acid for Skin Whitening
申请人:Kim Ki Ho
公开号:US20080261901A1
公开(公告)日:2008-10-23
The present invention is related to novel cosmetic composition comprising β-fructosyl-L-ascorbic acid derivatives produced by fructose conversion reaction using by ascorbic acid and the compounds shows potent inhibiting effect on the activity of tyrosinase enzyme, therefore, it can be useful as a skin whitening cosmetic composition as an cream, skin, lotion, pack and the like.