Patents by Inventor Gunter-Rudolf Schroder
Gunter-Rudolf Schroder 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: 20070232795Abstract: A process for producing a liquid formulation of salts of sulfonated azo dyes by coupling an at least equimolar amount of diazotized aminoarylsulfonic acids I H2N—Ar—SO3H??(I), where Ar is phenylene (which may be monosubstituted by sulfo) or naphthylene (which may be mono- or disubstituted by sulfo and/or monosubstituted by hydroxyl) onto the coupling product of an unsubstituted or methyl-substituted phenylenediamine with itself comprises dissolving the azo dye in a basic medium and then subjecting the solution to a nanofiltration.Type: ApplicationFiled: May 18, 2005Publication date: October 4, 2007Applicant: BASF AktiengesellschaftInventors: Gunter-Rudolf Schroder, Jurgen Decker, Helmut Reichelt, Ingo Klopp, Armin Diefenbacher, Hartwig Voss
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Patent number: 7108727Abstract: The present invention relates to novel reactive dyes of formula I, (I), in which the variable independently denote X hydrogen, NO2, or NR3R4, Y NR5R6, OR7, SR8, or SO2R9 or a group suitable as a leaving group under the conditions of nucleophilic, aromatic substitution, R1 to R9 independently hydrogen, C1–C8 alkyl, C2–C8 alkyl, in which non-adjacent CH2 groups can be replaced by oxygen atoms, imino groups, or C1–C4 alkylimino groups, and/or CH2 groups may be replaced by carbonyl groups, C2–C8 alkenyl, or a group containing an active site or the precursor of an active site, with the proviso that at least one group R1 to R9 is present which contains an active site or the precursor of an active site. The present invention also relates to the use of the reactivedyes of formula I for dyeing substrates containing nucleophilic groups, and to compositions containing at least one reactive dye of formula I.Type: GrantFiled: March 5, 2002Date of Patent: September 19, 2006Assignee: BASF AktiengellschaftInventors: Helmut Reichelt, Günther Seybold, Manfred Patsch, Gunter-Rudolf Schröder, Stevan David Jones, James Charles Dunbar, Colin John Clarke
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Publication number: 20060042028Abstract: The present invention relates to an aqueous liquid formulation comprising 5-25% by weight of a dye composition comprising 20-100% by weight of Direct Yellow 11 or of a dye obtainable by reduction or thermal treatment of Direct Yellow 11 ?0-30% by weight of a blue direct dye, ?0-30% by weight of a red direct dye, and ?0-60% by weight of a brown direct dye all based on the dye composition, and 1-25% by weight of poly-N-vinylformamide and/or of a polymer obtained by polymerization of a mixture of one or more ethylenically unsaturated monomers and >50% by weight of N-vinylformamide based on total monomers, based on the total weight of the aqueous liquid formulation.Type: ApplicationFiled: August 10, 2005Publication date: March 2, 2006Applicant: BASF AktiengesellschaftInventors: Gero Nordmann, Helmut Reichelt, Ingo Klopp, Gunter-Rudolf Schroder
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Patent number: 6989036Abstract: The present invention relates to novel reactive dyes of the formula (I) where R1 to R4 are independently hydrogen, C1–C8-alkyl, C2–C8-alkyl, wherein nonadjacent CH2 groups may be replaced by oxygen atoms or imino or C1–C4-alkylimino groups and/or CH2 groups by carbonyl groups, C2–C8-alkenyl, aryl, arylalkylene or a moiety containing a reactive group or the precursor of a reactive group, with the proviso that at least one of R1 to R4 is a moiety which contains a reactive group or the precursor of a reactive group. The present invention further relates to the use of the reactive dyes of the formula (I) for dyeing substrates containing nucleophilic groups and to preparations containing at least one reactive dye of the formula (I).Type: GrantFiled: April 24, 2002Date of Patent: January 24, 2006Assignee: BASF AktiengellschaftInventors: Gunter-Rudolf Schröder, Helmut Reichelt, Günther Seybold, Manfred Patsch, Stevan David Jones, James Charles Dunbar, Colin John Clarke
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Patent number: 6933371Abstract: Disclosed are bisazo compounds of the formula Ia or Ib where R1 is hydrogen or methyl, the X groups are independently —CH2CH2— or —CH2CH2CH2—, R2, R3, and R4 are independently hydrogen or methyl, A is an anion and n corresponds to the valency of A. Also disclosed are the use of the bisazo compounds for dyeing, especially paper, and colorants containing said bisazo compounds.Type: GrantFiled: September 13, 2001Date of Patent: August 23, 2005Assignee: BASF AktiengesellschaftInventors: Gunter-Rudolf Schröder, Sophia Ebert, Karl-Heinz Etzbach, Rainer Tresch, Rüdiger Sens
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Publication number: 20050132510Abstract: The present invention relates to aqueous liquid formulations comprising 5-25% by weight of a dye composition comprising 70-95% by weight of a dye obtainable by reduction or thermal treatment of Direct Yellow 11 1-30% by weight of a blue direct dye and 0-20% by weight of a red direct dye (all based on the dye composition) 1-15% by weight of a saturated, cyclic or acyclic water-soluble amine comprising a primary, secondary or tertiary amino group and at least one further functional group selected from primary, secondary and tertiary amino groups, OH groups and ether groups, and 1-30% by weight of urea based on the total weight of the aqueous liquid formulation, wherein the total amount of water-soluble amine and urea does not exceed 40% by weight, and also their use for dyeing cellulose material especially paper.Type: ApplicationFiled: November 23, 2004Publication date: June 23, 2005Applicant: BASF AkiengesellschaftInventors: Jurgen Decker, Gero Nordmann, Ingo Klopp, Gunter-Rudolf Schroder, Helmut Reichelt, Christoph Bomba
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Publication number: 20040102616Abstract: The present invention relates to novel reactive dyes of the formula (I) 1Type: ApplicationFiled: September 29, 2003Publication date: May 27, 2004Inventors: Gunter-Rudolf Schroder, Helmut Reichelt, Gunther Seybold, Manfred Patsch, Stevan David Jones, James Charles Dunbar, Colin John Clarke
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Publication number: 20040088804Abstract: The present invention relates to novel reactive dyes of formula I 1Type: ApplicationFiled: September 3, 2003Publication date: May 13, 2004Inventors: Helmut Reichelt, Gunther Seybold, Manfred Patsch, Gunter-Rudolf Schroder, Stevan David Jones, James Charles Dunbar, Colin John Clarke
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Patent number: 6533826Abstract: Process for preparing aqueous solutions of cationic di- and triarylmethane dyes by the aqueous dye solution, which contains organic solvents, being concentrated by nanofiltration and optionally diluted with water.Type: GrantFiled: February 8, 2001Date of Patent: March 18, 2003Assignee: BASF AktiengesellschaftInventors: Thomas Gessner, Gunter-Rudolf Schröder, Robert Reinhardt
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Patent number: 6153734Abstract: Oligomeric azo dyes having an alternating construction made up of tetrazo components and coupling components, containing in the molecule at least 2 units of the structure I------[D--------K]------ (I)where D and K are as defined in the specification, are prepared and used alone or in mixtures for dyeing and printing natural or synthetic substrates.Type: GrantFiled: November 1, 1999Date of Patent: November 28, 2000Assignee: BASF AktiengesellschaftInventors: Gunter-Rudolf Schroder, Torsten Freund, Udo Mayer, Karl-Heinz Etzbach
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Patent number: 6114512Abstract: Oligomeric azo dyes having an alternating construction made up of diazo components and coupling components, containing in the molecule at least 3 units of the structure I--[D--K]-- (I)where D is a tetrazo component of the formula II ##STR1## where x is a direct bond, oxygen, sulfur or a bridge member of the formula --NHCO--, --NHCONH--, --CO--, --NHSO.sub.2 --, --SO.sub.2 NHSO.sub.2 --, --SO.sub.2 --, --SO.sub.2 --NH--A--NH--SO.sub.2 --, -NAlk-CO-, -NAlk-CO-NAlk-, -NAlk-CO--NH--, -NAlk-SO.sub.2 --, --SO.sub.2 -NAlk-SO.sub.2 --, --SO.sub.2 -NAlk-A-NAlk-SO.sub.2 --, --SO.sub.2 -NAlk-A-NH--SO.sub.2 --, --CH.dbd.CH--, --CH.sub.2 CH.sub.2 --, --C(CH.sub.3).sub.2 --, --CH.sub.2 -- or --NH--,R.sup.1 and R.sup.2 are each independently of the other hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -alkanoyl, cyano, carboxyl, hydroxysulfonyl, C.sub.1 -C.sub.4 -alkoxycarbonyl, hydroxyl, carbamoyl, mono- or di-(C.sub.1 -C.sub.4)-alkyl-carbamoyl, sulfamoyl, mono- or di-(C.sub.1 -C.sub.Type: GrantFiled: September 17, 1999Date of Patent: September 5, 2000Assignee: BASF AktiengesellschaftInventors: Gunter-Rudolf Schroder, Torsten Freund, Udo Mayer, Karl-Heinz Etzbach
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Patent number: 6048969Abstract: Cationic sulfonic acid dyes of the formula I ##STR1## where the variables are as defined in the specification, are useful for the dyeing or printing of polymeric material.Type: GrantFiled: April 6, 1999Date of Patent: April 11, 2000Assignee: BASF AktiengesellschaftInventors: Gunter-Rudolf Schroder, Udo Mayer, Rainer Tresch
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Patent number: 5750742Abstract: Triarylmethanes of the formula ##STR1## where m is from 1 to 100,L.sup.1 and L.sup.2 are each C.sub.2 -C.sub.4 -alkylene,R.sup.1 and R.sup.2 are each hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy or halogen,R.sup.3 is hydrogen or substituted or unsubstituted C.sub.1 -C.sub.4 -alkyl,R.sup.4, R.sup.5,R.sup.6 and R.sup.7 are each hydrogen, substituted or unsubstituted C.sub.1 -C.sub.4 -alkyl, or substituted or unsubstituted phenyl,Q is aryl, andAn.sup..crclbar. is the equivalent of an anion,are useful for dyeing or printing polymeric material.Type: GrantFiled: February 19, 1997Date of Patent: May 12, 1998Assignee: BASF AktiengesellschaftInventors: Gunter-Rudolf Schroder, Udo Mayer, Ulf Baus, Johannes Peter Dix