[EN] ESTERS OF GLYCYRRHETINIC ACID, PREPARATION AND COSMETIC APPLICATIONS THEREOF<br/>[FR] ESTERS D'ACIDE GLYCYRRHÉTINIQUE, LEUR PRÉPARATION ET LEURS APPLICATIONS COSMÉTIQUES
申请人:GIULIANI SPA
公开号:WO2014097176A1
公开(公告)日:2014-06-26
An ester of glycyrrhetinic acid with (poly)glycerol-sorbitol and cosmetic compositions thereof is described. The introduction of sorbitol in the (poly)glycerol chain determines an increase in solubility of the ester of the invention increasing solubility in water and the possibility of using glycyrrhetinic acid in cosmetic applications.
[EN] PROCESS FOR MAKING POLYOL ETHERS<br/>[FR] PROCÉDÉ POUR LA FABRICATION D'ÉTHERS DE POLYOLS
申请人:DOW GLOBAL TECHNOLOGIES LLC
公开号:WO2011104719A1
公开(公告)日:2011-09-01
The present invention generally relates to a process for making polyol ethers by reacting a polyol and a carbonyl compound together in the presence of hydrogen gas and a bimetal palladium hydrogenation catalyst on a carbon support.
Glycerol Etherification over Highly Active CaO-Based Materials: New Mechanistic Aspects and Related Colloidal Particle Formation
作者:Agnieszka M. Ruppert、Johannes D. Meeldijk、Bonny W. M. Kuipers、Ben H. Erné、Bert M. Weckhuysen
DOI:10.1002/chem.200701757
日期:2008.2.27
CaO particles of about 50-100 nm can be spontaneously generated during reaction. Catalytic testing of these CaO colloids, after isolation from the reaction medium, revealed a very high etherification activity. Understanding the nature of these Ca-based colloids opens new opportunities for investigating supported colloidal particle catalysts to take advantage of both their hetero- and homogeneous nature
The present invention relates to the use of a composition comprising a partial ester of a carboxylic acid and a polyhydric alcohol as a lubricity improver, wherein as the polyhydric alcohol use is made of a diglycerol composition which comprises at least 75.0 wt. % of diglycerol, wherein as the carboxylic acid use is made of a fatty acid composition which contains at least one C8-C22 fatty acid or a mixture of two or more thereof.
Novel high reactive bifunctional five- and six-membered bicyclic dicarbonate – synthesis and characterisation
作者:M. Tryznowski、A. Świderska
DOI:10.1039/c8ra00669e
日期:——
Five- and six-membered bicyclic carbonates are valuable raw materials for the synthesis of environmentally friendly polymers, such as polycarbonates or non-isocyanate poly(hydroxyurethane)s. However, bicyclic diglycerol dicarbonates bearing five-membered and six-membered rings have been never reported before. In this work, for the first time, we report a simple procedure for the synthesis of this monomer
五元和六元双环碳酸酯是合成聚碳酸酯或非异氰酸酯聚(羟基氨基甲酸酯)等环保聚合物的宝贵原料。然而,以前从未报道过带有五元和六元环的双环二甘油二碳酸酯。在这项工作中,我们首次报告了一种从市售双甘油合成这种单体的简单程序。产物经1 H NMR、13C NMR、FTIR 光谱和 X 射线衍射测量。接着,研究了得到的双环碳酸酯的反应性。将得到的二碳酸二甘油酯用作聚碳酸酯和基于腐胺的非异氰酸酯聚(羟基氨基甲酸酯)的单体。在均聚反应中观察到六元碳酸酯环的打开,而在与二胺的缩聚反应中,两个碳酸酯环均非选择性地打开。