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公开(公告)号:DE2262859A1
公开(公告)日:1974-07-04
申请号:DE2262859
申请日:1972-12-22
Inventor: SCHMIDT FRANZ DR , SCHENK WOLFGANG DR , WURMB ROLF DR , MEYERSIMON EUGEN DR , THURN FRIEDRICH M DR , WILL WERNER
Abstract: Thermoplastic molding compositions of polyoxymethylene, glass fibers and adhesion promoting substances. The adhesion promoters used are polymeric organosilanes. The molding compositions show improved toughness and strength properties.
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公开(公告)号:ES2713853T3
公开(公告)日:2019-05-24
申请号:ES05756570
申请日:2005-07-05
Applicant: EVONIK DEGUSSA GMBH
Inventor: PERLET GABRIELE , LORTZ WOLFGANG , BATZ-SOHN CHRISTOPH , WILL WERNER , REITZ SASCHA
Abstract: Dispersión acuosa obtenible - al disponer en agua un polvo de dióxido de titanio agregado que tiene un área superficial específica de 20 a 150 m2/g en una cantidad tal que la dispersión deseada comprenda al menos 20% en peso de dióxido de titanio, y al menos un amino alcohol que tenga de 1 a 6 átomos de carbono y al menos un ácido carboxílico del grupo que comprende ácidos carboxílicos dibásicos y/o ácidos hidroxicarboxílicos que tienen de 2 a 6 átomos de carbono, - estando presente el aminoalcohol en la dispersión en una cantidad de 2,5 a 7,0 μmol/m2 de área de superficie específica de TiO2 y estando presente el ácido carboxílico en una cantidad de 1,0 a 3,5 μmol/m2 de área de superficie específica de TiO2, - produciendo una pre-dispersión mediante la introducción de energía en una cantidad inferior a 200 kJ/m3 y luego produciendo una dispersión en la que el polvo de dióxido de titanio agregado tiene un diámetro de agregado medio relacionado con el volumen de menos de 150 nm moliendo la pre-dispersión por medio de un molino de alta energía a una presión de al menos 500 bares.
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公开(公告)号:DE602006021423D1
公开(公告)日:2011-06-01
申请号:DE602006021423
申请日:2006-06-09
Applicant: EVONIK DEGUSSA GMBH
Inventor: LORTZ WOLFGANG , BATZ-SOHN CHRISTOPH , PERLET GABRIELE , LACH HEINZ , WILL WERNER
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34.
公开(公告)号:ES2355967T3
公开(公告)日:2011-04-01
申请号:ES08103331
申请日:2008-04-02
Applicant: EVONIK DEGUSSA GMBH
Inventor: LORTZ WOLFGANG , FILZ KARLHEINZ , WILL WERNER , DIENER UWE
Abstract: Reactor para llevar a cabo conversiones químicas y físicas de materiales, que comprende un recinto de reacción rodeado por una carcasa del reactor, en el que la carcasa del reactor presenta al menos dos entradas para fluido laterales con toberas apoyadas de forma ajustable, que abarcan un ángulo de 20-160 grados, y a través de las cuales se conducen chorros de fluidos que inciden uno sobre otro en un punto de colisión común dentro del recinto de reacción, y una salida para el fluido en el fondo del recinto de reacción, en el que - sobre el fondo del recinto de reacción se apoya una placa de suelo, - que presenta un taladro como salida para el fluido y - sobre la cual se encuentran esferas apoyadas de forma móvil, las cuales bloquean el paso original de los chorros de fluido de los chorros individuales en estado desajustado y - en cada caso entre una esfera apoyada de forma móvil y la pared del recinto de reacción se encuentra una media cáscara dispuesta verticalmente sobre el fondo del recinto de reacción y - la placa de fondo, la media cáscara y esferas apoyadas de forma móvil se componen de uno o más materiales duros.
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公开(公告)号:AT490997T
公开(公告)日:2010-12-15
申请号:AT07726236
申请日:2007-01-26
Applicant: EVONIK DEGUSSA GMBH
Inventor: LORTZ WOLFGANG , PERLET GABRIELE , WILL WERNER , REITZ SASCHA
Abstract: In dispersion (I) containing aluminum oxide (II) and water, (II) is in the form of aggregated primary particles with a BET (Brunauer-Emmett-Teller) surface area of 20-200 m 2>/g and volume average aggregate diameter in the dispersion of less than 100 nm; is completely or partly surface-modified with organophosphonic acid(s) and/or salt(s) containing amino and/or hydroxyl groups and is present in an amount of 20-70 wt.% with respect to total dispersion. Independent claims are included for (1) preparation of (I); (2) formulation (III) containing (I) and melamine resin(s); (3) preparation of (III); (4) cured product obtained from (III).
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公开(公告)号:DE102006007888A1
公开(公告)日:2007-08-23
申请号:DE102006007888
申请日:2006-02-21
Applicant: DEGUSSA
Inventor: LORTZ WOLFGANG , PERLET GABRIELE , WILL WERNER , REITZ SASCHA
Abstract: In dispersion (I) containing aluminum oxide (II) and water, (II) is in the form of aggregated primary particles with a BET (Brunauer-Emmett-Teller) surface area of 20-200 m 2>/g and volume average aggregate diameter in the dispersion of less than 100 nm; is completely or partly surface-modified with organophosphonic acid(s) and/or salt(s) containing amino and/or hydroxyl groups and is present in an amount of 20-70 wt.% with respect to total dispersion. Independent claims are included for (1) preparation of (I); (2) formulation (III) containing (I) and melamine resin(s); (3) preparation of (III); (4) cured product obtained from (III).
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公开(公告)号:DE10316661A1
公开(公告)日:2004-11-04
申请号:DE10316661
申请日:2003-04-11
Applicant: DEGUSSA
Inventor: LORTZ WOLFGANG , BATZ-SOHN CHRISTOPH , PERLET GABRIELE , WILL WERNER , LEHMANN KATHRIN , RUETTGERODT ANGELA
IPC: C01B33/141 , C08G65/26 , C08G65/332 , C08L71/02 , C09C1/30 , C09D5/02 , C08K9/06 , C08K7/26 , B01F17/54
Abstract: 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 prepared by dispersing the hydrophobic silicon dioxide powder, dispersing agent and optionally pH-regulating substances and further additives in an aqueous medium. It can be employed as an additive to waterborne fillers in the automobile industry, as a coating constituent in can and coil coating processes, as an additive in water-based UV-curable formulations e.g. for wood preservation and as a constituent of protective lacquer films.
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公开(公告)号:DE10205280C1
公开(公告)日:2003-07-03
申请号:DE10205280
申请日:2002-02-07
Applicant: DEGUSSA
Inventor: LORTZ WOLFGANG , PERLET GABRIELE , BATZ-SOHN CRISTOPH , WILL WERNER
IPC: B24B37/00 , C01B33/18 , C09G1/02 , C09K3/14 , H01L21/304 , H01L21/3105 , C09G1/04
Abstract: In aqueous dispersion for chemical-mechanical polishing of oxide surfaces, containing a powder of pyrogenic silica doped with alumina by means of an aerosol, the powder contains 0.01-3, preferably 0.2-1.5 weight percent (wt.%) alumina and the average particle diameter of the dispersion is not more than 0.1 microns. An Independent claim is also included for production of the dispersion by dispersing the doped silica in an aqueous medium with an energy input of not less than 200 kJ/m3.
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公开(公告)号:ES2187857T3
公开(公告)日:2003-06-16
申请号:ES98112029
申请日:1998-06-30
Applicant: DEGUSSA
Inventor: MUNZENBERG JORG DR , WILL WERNER , ZEZULKA GERD
Abstract: Two-stage preparation of highly pure organosilicon disulfans of formula Z-Alk-S2-Alk-Z (I) comprises (1) dissolving or suspending sulfur (S) and an anhydrous sulfide of formula Me2S (II) in 1:(0.2-0.9) molar ratio and treating the solution or suspension with an organosilicon compound of formula Z-Alk-Hal (III), with a molar ratio of (III) to sulfur of (1.2-2):1; and (2) adding more (II) after reaction, in an amount approximately equimolar to the total amounts of (II) and S used for reaction, and isolating (I); in which Z = -Si(R )2R , -Si(R )(R )2 or -Si(R )3; R = 1-5C alkyl, 5-8C cycloalkyl, benzyl or a phenyl group optionally substituted by methyl (Me), ethyl (Et) or chlorine (Cl); R = 1-5C alkoxy, 5-8C cycloalkoxy, phenoxy or benzyloxy; Alk = a 1-10C divalent, saturated linear or branched hydrocarbon group or -CH2-Phe-CH2-; Phe = phenylene; Me = ammonium, an alkali metal or one equivalent of an alkaline earth metal or zinc; Hal = Cl or bromine (Br).
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公开(公告)号:DE10065027A1
公开(公告)日:2002-07-04
申请号:DE10065027
申请日:2000-12-23
Applicant: DEGUSSA
Inventor: LORTZ WOLFGANG , MANGOLD HELMUT , BATZ-SOHN CHRISTOPH , PERLET GABRIELE , WILL WERNER
IPC: A61K8/18 , A61K8/25 , A61Q1/02 , C01B33/141 , C01B33/18 , C03C17/25 , C09C1/68 , C09G1/02 , C09K3/14 , D21H19/40 , H01L21/304 , H01L21/306 , C09D1/02 , B01F3/12
Abstract: A pyrogenic process is used to prepare alkali-doped silica particles. Particles produced by this process exhibit homogeneous doping, reduced agglomeration, greater stability and higher removal rates. Aqueous dispersions containing alkali-doped pyrogenic silica with average particle size less than 100 nm are used for polishing surfaces (CMP).
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