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Assignee: Degussa AG


Location: Duesseldorf, DE
No. of patents: 593

1                      
NumberTitleIssue Date
7960061Electrolyte composition in addition to the use thereof as an electrolyte material for electrochemical energy storage systems
The invention relates to an electrolyte composition consisting of an ionic liquid, a conducting salt, a film former and a viscosity modifier and also to the use of the electrolyte composition of the present invention as an electrolyte material for electrochemical en...
06/14/2011
7795339Powdery composition of a polymer and a flameproofing agent containing ammonium polyphosphate, method for the production thereof, and moulded body produced from said powder
The present invention relates to a powder which, in addition to a polymer, comprises a flame retardant based on ammonium polyphosphate, to the use of this powder for the layer-by-layer production of moldings, and also to moldings produced from this powder. The moldi...
09/14/2010
7767772Spherical particles
Spherical particles comprising magnesium alcoholate and having a poured cone height of less than 17 mm are prepared by reacting magnesium, an alcohol or a mixture of various alcohols and a halogen and/or an optionally organic halogen compound with one another at bel...
08/03/2010
7722740Method for obtaining a gaseous phase from a liquid medium and device for carrying out the same
A modular construction micro-reactor with parallel microchannels on fluid guide plates for chemical reactions, but not for evaporation purposes is known. A modular construction falling film evaporator is disclosed, comprising a stack of alternate gap-like evaporatio...
05/25/2010
7704315Highly-filled, aqueous metal oxide dispersion
Aqueous dispersion containing a metal oxide powder with a fine fraction and a coarse fraction, in which—the metal oxide powder is silicon dioxide, aluminum oxide, titanium dioxide, zirconium dioxide, cerium oxide or a mixed oxide of two or more of the aforemention...
04/27/2010
7691529Lithium battery separator having a shutdown function
Electrical separators for batteries, especially lithium batteries, having a shutdown mechanism. A process for their production. An electrical separator is used in batteries and other systems in which electrodes have to be separated from each other while maintaining ...
04/06/2010
7691528Lithium battery separator having a shutdown function
Electrical separators for batteries, especially lithium batteries, having a shutdown mechanism. A process for their production. An electrical separator is used in batteries and other systems in which electrodes have to be separated from each other while maintaining ...
04/06/2010
7686881Flame-hydrolytically produced titanium dioxide powder
Flame-hydrolytically produced titanium dioxide powder that is present in the form of aggregates of primary particles, and has a BET surface of 20 to 200 m²/g, a half width (HW) [nm] of the primary particle distribution of HW = a×BETf where a = 67...
03/30/2010
7682731Separator with long-term stability for an electrochemical cell
A separator for an electrochemical cell, comprising (A) a flexible perforate support, (B) a porous first ceramic material which fills the perforations in the support and which (i) has a pore structure which is characterized by an average pore size, and (ii) is suita...
03/23/2010
7670986Manganese dioxide catalyst for the hydrolysis of carbonitriles
A manganese dioxide catalyst for hydrolysing organic nitrites which bear readily oxidizable groups such as thiol or thioether groups to the corresponding carboxamides, and to a process for preparing the catalyst and to its use for hydrolysing organic nitrites. ...
03/02/2010
7666933Organosilane masterbatch
An organosilane masterbatch containing (a) 2-20 parts by weight of rubber, (b) 0-60 parts by weight of filler, (c) 5-55 parts by weight of organosilane and (d) 0-10 parts by weight of dispersing agent. A process for preparing the organosilane masterbatch by mixing t...
02/23/2010
7659328Silicone rubber
A composition containing a silicone and one or more silanized, structure-modified, pyrogenic silicas which contain groups fixed to their surface is described. The silicone containing silanized, structure-modified, pyrogenic silicas exhibit advantageous rheological p...
02/09/2010
7655360Electric separator comprising a shutdown mechanism, method for the production thereof, and use in lithium batteries
An electrical separator for a lithium battery is composed of a porous carrier coated with a porous inorganic nonelectroconductive material and a porous shutdown layer on the porous inorganic nonelectroconductive coating. The shutdown layer melts at a selected temper...
02/02/2010
7652180Process for preparing alkyl chlorides
The invention relates to a process for preparing alkyl chlorides by reacting alcohols with gaseous hydrogen chloride in the presence of a catalyst, wherein the catalyst comprises at least one compound of the structure: wher...
01/26/2010
7645335Aqueous dispersion of hydrophobized silicon dioxide powder comprising a dispersing agent
Aqueous dispersion which comprises hydrophobized silicon dioxide powder with a content of between 5 and 50 wt. % and which comprises at least one compound of the general formula R & supl; —COO—(CH2-CH(Ph)—O)a-(CnH2n-xR2x-O)b-R3 (I). It is...
01/12/2010
7632478Process for producing silicon
The present invention relates to a process for producing silicon by thermal decomposition of a gaseous mixture comprising monosilane, monochlorosilane and, if desired, further chlorosilanes, e.g. dichlorosilane. ...
12/15/2009
7628971Highly dispersible precipitated silica having a high surface area
The present invention relates to a highly dispersible silica which has a high surface area, a process to manufacture the aforesaid silica and its use as a tire filler for utility vehicles, motor cycles and high speed vehicles. ...
12/08/2009
7625975Composition acting as coupling agent for filled and peroxidically crosslinking rubber compounds
The present invention relates to a composition acting as coupling agent between fillers and peroxidically crosslinking elastomers in rubber compounds, which comprises, as component comprising silicon compounds, a mixture a) of vinylalkoxysiloxanes with alkylalkoxy-s...
12/01/2009
7612137Surface-modified silica gels
The invention relates to surface-modified silica gels, to a process for preparing them, and to their use as matting agents in coating materials. As a result of the nature of the surface modification, the viscosity of 2-component coating materials is increased only s...
11/03/2009
7611753Process for impregnating porous mineral substrates
A process is provided for impregnating porous mineral substrates by a spray technique in which use is made of a gas-supported spraying assembly to apply liquid impregnating agent in a controlled manner to the substrate surface, the amount consumed being markedly les...
11/03/2009
7608738Coammoxidation of ketones
The present invention relates to a process for the coammoximation, that is to say for the simultaneous ammoximation, of ketones, in particular of cyclic ketones such as cyclododecanone and cyclohexanone. Ammoximation is taken to mean here the preparation of oximes f...
10/27/2009
7608234Precipitated silicas with particular pore size distribution
Precipitated silicas useful, for example, as fillers in elastomer mixtures or vulcanizates have a particularly broad pore size distribution of the pores with a pore diameter smaller than that of the maximum of the derivative of the pore volume distribution function,...
10/27/2009
7598409Specific process for preparing silicon compounds bearing fluoroalkyl groups by hydrosilylation
The present invention relates to a process for preparing silicon compounds bearing fluoroalkyl groups by hydrosilylation of a fluoroolefin in the presence of a hydrosilylation catalyst, which comprises initially charging and heating a hydrogenchlorosilane, then mete...
10/06/2009
7598307Transparent masterbatches for thermoplastics
The invention relates to a transparent masterbatch for improving the surface properties of thermoplastics, said masterbatch containing from 10% to 60% by weight of polyhedral oligomeric silicon-oxygen cluster units in accordance with the formula [(RaX
10/06/2009
7589215Bisphosphines as bidentate ligands
The present invention relates to ligands of the general formula (I). In addition, a process for the production thereof and the use thereof are demonstrated. ...
09/15/2009
7578877Two-component coating system for equipping smooth surfaces with easy-to-clean properties
The present invention relates to a two-component system for equipping surfaces with an oil, water, and dirt repellent coating, the two-component system being composed of a formulation 1 and a formulation 2, and both formulations being mixed together shortly before a...
08/25/2009
7575832Ion conducting battery separator for lithium batteries, method for the production and use thereof
Separators for lithium batteries based on a sheetlike flexible substrate provided with a plurality of openings and having a porous inorganic electrically insulating coating on and in the substrate, the coating closing the openings in the substrate, the material of t...
08/18/2009
7569624Curable bonded assemblies capable of being dissociated
The invention concerns an adhesive composition for producing thermoset products, capable of being heated by means of an electric field, a magnetic field, an electromagnetic field or an alternating electromagnetic field, and containing filler particles which are meta...
08/04/2009
7557242Multistage continuous preparation of cycloaliphatic disocyanates
Cycloaliphatic diisocyanates can be prepared continuously and phosgene-free by reacting at least one cycloaliphatic diamine with at least one carbonic acid derivative and at least one alcohol to give a cycloaliphatic diurethane; freeing the cycloaliphatic diurethane...
07/07/2009
7553889Surface-modified precipitated silicas
A surface-modified precipitated silica, useful as a matting agent, contains the silica having a polymer on a surface thereof. The surface-modified precipitated silica improves the transmission of a clear coating material, having a refractive index of nD20...
06/30/2009
7553465Cerium oxide powder and cerium oxide dispersion
Cerium oxide powder having carbonate groups and made of crystalline primary particles containing cerium oxide and having carbonate groups on the surface and in a region close to the surface, and having a BET surface area of from 25 to 150 m2/g, a mean dia...
06/30/2009
7541014Pyrogenically produced silica
Pyrogenically produced silica powder with a BET surface of 30 to 90 m2/g, a dibutyl phthalate number of at least 80 and a tamped density of no more than 110 g/l. It is produced in that at least one vaporous silicon compound, a gas containing free oxygen a...
06/02/2009
7537833Pyrogenically produced silicon dioxide powder and dispersion thereof
Pyrogenically produced silicon dioxide powder in the form of aggregates of primary particles having a BET surface area of 90±15 m2/g, wherein the aggregates display an average surface area of 10000 to 20000 nm2, an average equivalent circle di...
05/26/2009
7534409Pyrogenic silicon dioxide powder and dispersion thereof
Pyrogenically produced silicon dioxide powder with a specific surface area of between 5 and 600 m2/g and a carbon content of less than 500 ppm, which displays a specific dibutyl phthalate absorption of less than or equal to 1.2 g dibutyl phthalate/100 g S...
05/19/2009
7525788Capacitor comprising a ceramic separating layer
An electrochemical capacitor including a separating layer on a support. The separating layer represents a porous inorganic, electrically non-conducting coating which is provided with particles of compounds of the elements Al, Si, and/or Zr, the particles being bonde...
04/28/2009
7517428Production of self-cleaning surfaces on textile coatings
The invention relates to a process for producing self-cleaning surfaces on coated textile sheets, by the following steps of the process: i.) applying hydrophobic nanostructured particles to a surface of a transfer-medium sheet, ii.) applyin...
04/14/2009
7510693Process for the production of metal oxide powders
Process for the production of a metal oxide powder having a BET surface area of at least 20 m2/g by reacting an aerosol with oxygen in a reaction space at a reaction temperature of more than 700° C. and then separating the resulting powder from gaseous s...
03/31/2009
7507862Process for hydrogenating an aromatic amine in the presence of a supported ruthenium catalyst
The invention relates to a process for hydrogenating an aromatic amine that has at least one amino group bound to an aromatic nucleus with hydrogen in the presence of a supported catalyst that contains at least ruthenium as active metal. The catalyst support has a B...
03/24/2009
7491792Polymer powder with block polyetheramide, use in a shaping process, and moldings produced from this polymer powder
Moldings can be produced from a polymer powder containing at least one block polyetheramide containing an oligoamide dicarboxylic acid and a polyetheramine; wherein the powder is suitable for use in a layer-by-layer process in which regions of a powder layer are sel...
02/17/2009
7491375Pyrogenically produced silicon dioxide powder
Pyrogenically produced silicon dioxide powder in the form of aggregates of primary particles having a BET surface area of 200±25 m2/g, wherein the aggregates display an average surface area of 7000 to 12000 nm2, an average equivalent circle di...
02/17/2009
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