摘要:
Gegenstand der Erfindung ist die Verwendung von Phenoxyalkylestern von C6-C12 Alkyl- und Cycloalkylcarbonsäuren zur Herstellung einer kosmetischen, dermatologischen oder pharmazeutischen Formulierung.
摘要:
Verfahren zur enzymatischen Synthese von Carbonsäureestern, dadurch gekennzeichnet, dass Durchmischung und Austrag des Reaktionswassers durch Einleiten eines Gases erfolgen unter Erreichung niedriger Effektivitätsverhältnisse EV.
摘要:
The invention relates to electric separators for batteries, particularly lithium batteries, comprising a shutdown mechanism, and a method for the production thereof. An electric separator is a separator that is used in batteries and other systems in which electrodes have to be separated from one another, e.g. while maintaining ionic conductivity. As opposed to other battery types (Pb, NiCd, NiMeH), safety plays a very important part in lithium batteries because a flammable solvent, such as organic carbonates, is used as a solvent for the electrolyte instead of water. A lithium cell separator therefore absolutely has to be provided with an appropriate shutdown mechanism while being prevented from melting down. Said aim is achieved by an inventive electric separator comprising a shutdown layer that is formed by a porous planar structure. Additionally, the cells are prevented from melting down as a result of a totally melted separator because the separator is provided with a porous inorganic (ceramic) layer on a support.
摘要:
The invention relates to flexible, ceramic membranes which are suitable as separators for batteries, especially lithium batteries, according to the embodiment thereof and a method for the production thereof. In spite of their flexibility, previously known ceramic or hybrid membranes have the disadvantage of being provided with a ceramic coating that tends to scale off during folding. Scaling is prevented in the inventive membranes comprising a solidified ceramic coating on and in a polymer fleece. Said ceramic coating is made up of two fractions of metal oxide particles having a different size and sticks to the polymer fleece by means of a network that is composed of two different adhesives.
摘要:
The invention relates to a method for producing 1-octene from crack-C4 by: telomerizing the 1,3-butadiene contained in the crack-C4 with methanol in the presence of a catalyst; hydrogenating the telomer obtained thereby; cleaving the hydrogenated telomer, and; processing the cleavage product obtained thereby to form pure 1-octene.
摘要:
The invention relates to a method for producing aldehydes by means of hydroformylation catalysed by metals of groups eight to ten of the periodic table in the presence of cyclic carbonic acid esters.
摘要:
The invention relates to an aluminum-containing precipitated silicic acid having an adjustable BET/CTAB ratio, to a method for the production and to the use thereof.
摘要:
The invention relates to a cross-linking agent for the cross-linking of matrix materials, the matrix which results therefrom, the method used therefor, and the use of said cross-linking agent. Said cross-linking agent contains functionalised polyhedral oligomer silicon-oxygen cluster units, according to formula (I) [(RaXbSiO1,5)m (RcXdSiO)n (ReXfSi2O2,5)o (RgXhSi2O2)p], wherein a, b, c are equal to 0-1; d is equal to 1-2; e, f, g are equal to 0-3; h is equal to 1-4; m+n+o+p is greater than or equal to 4; a+b is equal to 1; c+d is equal to 2; e+f is equal to 3 and g+h is equal to 4; R represents a hydrogen atom, an alkyl, cycloalkyl, alkenyl, cycloalkenyl, alkinyl, cycloalkinyl, aryl, or heteroaryl group or a polymer unit which are respectively substituted or non-substituted, or other functionalised polyhedral oligomer silicon-oxygen cluster units which are bound by a polymer unit or a bridge unit; X represents an oxy, hydroxy, alkoxy, carboxy, silyl, alkylsilyl, alkoxysilyl, siloxy, alkylsiloxy, alkoxysiloxy, silylalkyl, alkoxysilylalkyl, alkylsilylalkyl, halogen, epoxy, ester, fluoroalkyl, isocyanate, blocked isocyanate, acrylate, methacrylate, nitrile, amino, or phosphine group or substituents of type R comprising at least one such group of type X, the substituents of type R being the same or different and the substituents of type X being the same or different.