Patents by Inventor Hans-Thomas Schacht
Hans-Thomas Schacht has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20110040006Abstract: The dirt pickup resistance of substrates, in particular coatings, is improved by the incorporation of small amount of certain layered double hydroxide particles. Methods for the preparation of effective, readily intercalated, layered double hydroxide particles and compositions comprising them, such as architectural coatings, in particular water based architectural coatings, are provided.Type: ApplicationFiled: July 27, 2010Publication date: February 17, 2011Applicant: BASF SEInventors: Wolfgang Peter, Hans-Thomas Schacht, Valentina Kharisovna Mitina, Bernd Lamatsch, Karin Powell
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Publication number: 20050155162Abstract: The present invention relates to a proces for producing colored oxide layers on aluminum or on aluminum alloys by dyeing in an aqueous dye bath, rinsing with water and sealing, wherein there is used for the dyeing at least one dye of the general formula wherein m is a value from 1 to 8, especially from 1 to 4, n is a value from 0 to 7, especially from 1 to 4, the sum of m and n being less than or equal to 8, A is the radical of a chromophore of the 1-aminoanthraquinone, anthraquinone, anthrapyrimidine, azo, azomethine, benzodifuranone, quinacridone, quinacridonequinone, quinophthalone, diketopyrrolopyrrole, dioxazine, flavanthrone, indanthrone, indigo, isoindoline, isoindolinone, isoviolanthrone, perinone, perylene, phthalocyanine, pyranthrone or thioindigo series, B is a hydrogen atom, a branched or straight-chain C1-8alkyl, C2-8alkenyl or C2-8alkynyl radical, an aryl radical, an N—, O— or S-containing 5- or 6-membered heterocyclic ring, or a C1-8alkyl-arylene, aryl-C1-8alkylene or aryl-L-arylene radiType: ApplicationFiled: January 28, 2003Publication date: July 21, 2005Inventors: Hans-Thomas Schacht, Gibert Moegle, Didier Bauer, Leonhard Feiler, Olof Wallquist, Martin Muller
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Publication number: 20040138436Abstract: The present invention relates to colorant of the general formula, wherein A, B and B′, m and m′ and n and n′ are as defined in the description. The colorants can be used for the pigmenting of porous materials and in injekt printing and, in the case of pigmenting, are converted to the insoluble pigment form. In the pigmenting of porous materials, for example in the pigmenting of wood or anodised aluminium in the pores, the colorants yield very good penetration and fastness to light and, in injekt printing, yield very good water-resistance.Type: ApplicationFiled: October 16, 2003Publication date: July 15, 2004Inventors: Hans-Thomas Schacht, Gilbert Moegle
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Patent number: 6645257Abstract: A process for pigmenting wood, which comprises treating wood in succession: a) with a solution comprising from 0.01 to 80% by weight, based on the solution, of a compound of the formula A(B)x (I), in which x is an integer from 1 to 8, A is the radical of a chromophore of the quinacridone, anthraquinone, perylene, indigo, quinophthalone, indanthrone, isoindolinone, isoindoline, dioxazine, azo, phthalocyanine or diketopyrrolopyrrole series which is attached to x groups B via one or more heteroatoms, these heteroatoms being selected from the group consisting of N, O and S and forming part of the radical A, B is hydrogen or a group of the formula at least one group B not being hydrogen and, if x is a number from 2 to 8, the groups B being identical or different, and L is any desired group suitable for solubilization; and from 0.05 to 5% by weight, based on the solution, of a salt of the formula Kat+.An− (II), Kat+.Type: GrantFiled: September 15, 2000Date of Patent: November 11, 2003Assignee: Ciba Specialty Chemicals CorporationInventors: Hans-Thomas Schacht, Gilbert Moegle, Reiner Jahn, Christiane Griessen, Peter Scheibli
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Patent number: 6495250Abstract: The present invention relates to a colored, preferably natural porous material comprising in its pores an effectively coloring amount of an organic pigment which is obtained by fragmenting a meltable or solvent-soluble pigment precursor in the presence of a thermally activated acid precursor, and to a low to medium temperature process for its preparation.Type: GrantFiled: November 16, 1999Date of Patent: December 17, 2002Assignee: Ciba Specialty Chemicals CorporationInventors: Hans-Thomas Schacht, Gilbert Moegle
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Patent number: 6365720Abstract: The invention relates to a method for preparing a compound of the formula A(D)x(E)y (I) by reaction of a compound of the formula A(H)x(H)y with a pyrocarbonic acid diester of the formula wherein x and y are each independently of the other an integer from 0 to 6, but x and y are not simultaneously the number 0, A is the radical of a chromophore of the quinacridone, anthraquinone, perylene, indigo, quinophthalone, indanthrone, isoindolinone, isoindoline, dioxazine, azo, phthalocyanine or diketopyrrolopyrrole series, which radical is bonded via one or more nitrogen atoms to x groups D and via one or more oxygen atoms to y groups E, the nitrogen atoms and oxygen atoms forming part of the radical A, each group D or E independently of any other(s) is hydrogen or a group of the formula wherein at least one group D or E is not hydrogen, and L is any desired group suitable solubilization, in the presence of a base as catalyst, in which method the reaction takes place in an aromaType: GrantFiled: June 20, 2001Date of Patent: April 2, 2002Assignee: Ciba Specialty Chemicals CorporationInventors: Hans-Thomas Schacht, Ramaswami Sreenivasan, Mudaliar Dayal Chandrasekhar, Gilbert Moegle, Barbara Wagner, Charles Edward Monnier
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Patent number: 6284036Abstract: The present invention relates to a process for pigmenting a porous sintered material comprising boride, carbide, silicide, nitride or phosphide compounds by applying a solution of a soluble pigment derivative to the non-coloured sintered material and regenerating the organic pigment by heating, whereby the organic pigment is deposited into the sintered material's pores, as well as to the new pigmented sintered materials themselves.Type: GrantFiled: November 8, 1999Date of Patent: September 4, 2001Assignee: Ciba Specialty Chemicals CorporationInventors: Seiji Homma, Hans-Thomas Schacht, Zhimin Hao
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Patent number: 6124405Abstract: Polymers having an average molecular weight M.sub.w (weight average) of 5,000 to 1,000,000 (measured by gel permeation chromatography), comprising structural repeating units of the formulae I-IV: ##STR1## in which R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, R.sub.8, R.sub.9 and R.sub.10 and w, x, y, and z are defined herein, are suitable as binders for DUV photoresists of high processing stability and flow resistance.Type: GrantFiled: May 19, 1999Date of Patent: September 26, 2000Assignee: Arch Specialty Chemicals, Inc.Inventors: Carl-Lorenz Mertesdorf, Hans-Thomas Schacht, Norbert Muenzel, Pasquale Alfred Falcigno
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Patent number: 5928818Abstract: Polymers having an average molecular weight M.sub.w (weight average) of 5,000 to 1,000,000 (measured by gel permeation chromatography), comprising structural repeating units of the formulae I-IV: ##STR1## in which R.sub.1, R.sub.2, R.sub.3 and R.sub.4 independently of one another are hydrogen, methyl or halogen, R.sub.5 and R.sub.6 independently of one another are C.sub.1 -C.sub.6 alkyl, R.sub.7, R.sub.8, R.sub.9 and R.sub.10 independently of one another are hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or halogen, and w, x, y and z are numbers equal to or greater than 1, with the provision that the quotient ##EQU1## which is obtainable from the sum of the structural units having protecting groups divided by the sum of all of the structural units present, obeys the condition 0.10.ltoreq.Q.ltoreq.0.50, are suitable as binders for DUV photoresists of high processing stability and flow resistance.Type: GrantFiled: February 26, 1997Date of Patent: July 27, 1999Assignee: Olin Microelectronic Chemicals, Inc.Inventors: Carl-Lorenz Mertesdorf, Hans-Thomas Schacht, Norbert Muenzel, Pasquale Alfred Falcigno
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Patent number: 5849808Abstract: A polymer which is insoluble in aqueous-alkaline developer solutions, and comprises structural units of the formula (I): ##STR1## in which R.sub.2 is hydrogen, C.sub.1 -C.sub.18 alkyl, C.sub.5 -C.sub.10 cycloalkyl, C.sub.5 -C.sub.14 aryl, C.sub.6 -C.sub.30 aralkyl, R.sub.3 is C.sub.1 -C.sub.18 alkyl, C.sub.5 -C.sub.10 cycloalkyl, C.sub.5 -C.sub.14 aryl, or C.sub.6 -C.sub.30 aralkyl, it being possible for the alkyl, cycloalkyl, aryl, or aralkyl groups to be substituted if desired by one or more hydroxyl groups or nitro groups or by one or more halogen atoms, and X is a k+1 valent organic radical, k being a number from 1 to 5, and 1 is a number from 0 to 4, in a quantity such that the cleavage products obtained by reaction with an acid are soluble in aqueous-alkaline developer solutions, is suitable as a binder for DUV photoresists of high processing stability, high contrast, and good resolution.Type: GrantFiled: April 19, 1996Date of Patent: December 15, 1998Assignee: Olin Microelectronic Chemicals, Inc.Inventors: Hans-Thomas Schacht, Norbert Muenzel
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Patent number: 5834531Abstract: Radiation-sensitive compositions comprising a substance which forms acid under the action of actinic radiation and polymers based on combination of different repeating units derived from hydroxy styrene and hydroxy-vinylcyclohexane derivatives wherein a portion of the hydroxyl groups are replaced with either acid-labile acetal or ketal protecting groups and where a portion of the repeating groups comprise two crosslinked species connected via the protecting groups.Type: GrantFiled: October 29, 1997Date of Patent: November 10, 1998Assignee: Olin Microelectronic Chemicals, Inc.Inventors: Hans-Thomas Schacht, Norbert Muenzel, Carl-Lorenz Mertesdorf, Pasquale Alfred Falcigno, Heinz Holzwarth, Ottmar Rohde, deceased, Hans-Jorg Kirner
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Patent number: 5714559Abstract: Polymers based on combination of different repeating units derived from hydroxy styrene and hydroxyvinylcyclohexane derivatives wherein a portion of the hydroxyl groups are replaced with either acid-labile acetal or ketal protecting groups and where a portion of the repeating groups comprise two crosslinked species connected via the protecting groups.Type: GrantFiled: December 14, 1995Date of Patent: February 3, 1998Assignee: Olin Microelectronic Chemicals, Inc.Inventors: Hans-Thomas Schacht, Norbert Muenzel, Carl-Lorenz Mertesdorf, Pasquale Alfred Falcigno, Heinz Holzwarth, Ottmar Rohde, deceased, Hans-Jorg Kirner