Patents by Inventor Klaus Walz
Klaus Walz 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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Patent number: 6846336Abstract: The present invention relates to acid-resistant solutions containing aromatic formaldehyde condensation products having sulfonate and/or carboxylate groups, aliphatic carboxylic acids, aromatic sulfonic acids, and glycol ether solvents, to the preparation thereof, and to their use as leveling agents, dispersants or fastness improvers in textile finishing, as tanning agents for leather, and in the stain resist finishing of textile materials.Type: GrantFiled: October 30, 2000Date of Patent: January 25, 2005Assignee: Bayer AktiengesellschaftInventors: Michael Gerle, Klaus Walz, Hans Albert Ehlert, Ralf Heinen
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Patent number: 6171608Abstract: The present invention relates to novel liquid formulations for the controlled and sustained release of insecticidally active compounds by means of a heat source and the water-based pre-solutions required for preparing these formulations.Type: GrantFiled: December 28, 1998Date of Patent: January 9, 2001Assignee: Bayer AktiengesellschaftInventors: Guido Schmitt, Gerd Schmitz, Klaus Walz, Burkhard Mielke, Hermann Neumann
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Patent number: 6099594Abstract: Synthetic fibers and synthetic fiber textile materials finished with mineral oil finishes, silicone oil finishes or both can be simultaneously stripped of these finishes and dyed in one liquor comprising as essential ingredientsa) anionic and/or amphoteric surfactants,b) dyes, andc) optionally further compounds selected from the group consisting of the nonionic surfactants, the terpene hydrocarbons/alcohols, sorbitol esters and their alkoxylates, fatty acid ethanolamides, alkylpolyglycosides and solvents.The treatment is carried out at pH 4.0 to 7.5 at 80-110.degree. C. and at a liquor ratio of 5:1 to 100:1.Type: GrantFiled: May 20, 1998Date of Patent: August 8, 2000Assignee: Bayer AktiengesellschaftInventors: Ferdinand Kummeler, Klaus Walz, Michael Pirkotsch, Josef Pfeiffer, Fritz Lesszinsky
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Patent number: 6056787Abstract: Iminodisuccinic acids of the formula ##STR1## the substituents of which have the meaning given in the description, are bleaching regulators in H.sub.2 O.sub.2 bleaching of textile-forming natural plant fibers or silk, wool and their mixtures with synthetics.Type: GrantFiled: September 19, 1997Date of Patent: May 2, 2000Assignee: Bayer AktiengesellschaftInventors: Gerd Friedrich Renner, Michael Pirkotsch, Klaus Walz, Torsten Groth, Winfried Joentgen
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Patent number: 5959001Abstract: Pigment preparations comprising at leasta) 5 to 80% by weight, based on the preparation, of pigment,b) a paste-making agent which is liquid at 20.degree. C. under normal pressure,c) an amine and/or salt thereof with an average molecular weight, determined as the number-average, of M.sub.n .ltoreq.500 g/mol andd) a homo- and/or copolymer of ethylenically unsaturated monomers or comonomers having an average molecular weight, determined as the number-average, of M.sub.n =10,000-100,000,are suitable for pigmenting organic macromolecular material, in particular polyurethane foams.Type: GrantFiled: May 21, 1997Date of Patent: September 28, 1999Assignee: Bayer AktiengesellschaftInventors: Klaus Walz, Gerd Schmitz, Michael Kressner, Udo Herrmann, Josef Leitermann
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Patent number: 5936019Abstract: A thickener composition for thickening aqueous compositions which contains a) a water soluble or water dispersible thickener containing urethane groups, b) a non-ionic aromatic or alkyl-substituted aromatic emulsifier and c) a compound corresponding to formula IR.sub.2 --?(Q.sub.2 --).sub.t H!.sub.u (I)wherein R.sub.2 represents an optionally branched and unsaturated aliphatic radical having 6 to 22 carbon atoms, a cycloaliphatic radical having 6 to 10 carbon atoms or a heterocyclic radical having 5 to 12 ring atoms, as obtained by removing the active hydrogen from a hydroxyl, amino, carboxylic acid or amide group, Q.sub.2 represents a C.sub.2 -C.sub.4 alkylene oxide unit, t has a value from 1 to 30 and u has a value from 1 to 10, and d) optionally further additives.Type: GrantFiled: August 8, 1997Date of Patent: August 10, 1999Assignee: Bayer AktiengesellschaftInventors: Jan Mazanek, Hermann Kober, Klaus Walz
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Patent number: 5902357Abstract: Improved compositions for dyeing or printing textile materials of natural or synthetic fibers or mixtures of the two comprise polyaspartic acid or a derivative thereof and, if appropriate, wetting agents, emulsifiers, leveling agents, dispersing agents, reducing agents, oxidizing agents, solubilizing agents, defoamers, reist agents, pH regulators, complexing agents or several of these as further components.Type: GrantFiled: August 25, 1997Date of Patent: May 11, 1999Assignee: Bayer AktiengesellschaftInventors: Martin Riegels, Uwe Vogt, Klaus Walz, Fritz Lesszinsky, Bernd Konemund, Torsten Groth, Winfried Joentgen
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Patent number: 5840902Abstract: .beta.-Hydroxyalkylpicolinium salts of the formula (I) ##STR1## wherein A, R.sup.1 to R.sup.3 and X have the meanings given in the description, which are obtained by reaction of picolines of the formula (II) ##STR2## with alkylene oxides of the formula (III) in the presence of a 1- to 3-basic acid and in water or an organic solvent as the reaction medium and are used as intermediate products for the preparation of cationic dyestuffs, and dyestuff preparations comprising such cationic dyestuffs.Type: GrantFiled: November 20, 1996Date of Patent: November 24, 1998Assignee: Bayer AktiengesellschaftInventors: Karlheinrich Meisel, Klaus Walz, Gerd-Friedrich Renner, Hans Schulze, Carsten Gerdes, Karl-Rudolf Gassen, Reiner Ditzer, Lothar Klein
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Patent number: 5672674Abstract: Polyamide-containing fibre materials can be given an anti-stain finish by treating them with a sulpho-containing aromatic formaldehyde condensation product in combination with polyacrylic acid, the treatment with the two components being carried out in any desired order or simultaneously.Type: GrantFiled: January 13, 1995Date of Patent: September 30, 1997Assignee: Bayer AktiengesellschaftInventors: Klaus Walz, Udo Winfried Hendricks, Hans-Albert Ehlert
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Patent number: 5441861Abstract: A color photographic material with at least one silver halide emulsion layer which contains a color coupler distributed in a polymeric oil former and at least one compound of the formula (I) ##STR1## in which R means alkyl, cycloalkyl, alkenyl, aryl, acyl, alkylsulphonyl or arylsulphonyl,R.sub.1 means a chemical bond or a divalent bridging member,R.sub.2 and R.sub.3 mean alkyl, alkoxy, alkenyl, cycloalkyl, aryl or aryloxy or two residues R.sub.2 or R.sub.3 the remaining atoms of a benzene ring condensed with the phenyl residue andm and n mean 0 to 3, wherein all alkyl, alkoxy, cycloalkyl, alkenyl, aryl, aryloxy and acyl residues may be further substituted,is characterized by improved color stability.Type: GrantFiled: August 26, 1993Date of Patent: August 15, 1995Assignee: Agfa-Gevaert ABInventors: Beate Weber, Gunter Helling, Klaus Walz, Markus Geiger, Kaspar Wingender, Jorg Hagemann
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Patent number: 5372610Abstract: Dyed raw cellulose can be bleached in a bleaching and after-treatment bath containing, in addition to usual stabilizers, cationic-monomeric and/or polymeric compounds and, if desired, nonionic surfactants. Bleaching is carried out with the aid of aqueous-hydrogen peroxide. The stabilizers that can be used and the cationic compounds are defined in the specification. Nonionic tensides, if their co-use is desired, are those of the class polyglycolethers.Type: GrantFiled: September 3, 1992Date of Patent: December 13, 1994Assignee: Bayer AktiengesellschaftInventors: Volker Kahle, Klaus Kackstadter, Karl-Heinz Passon, Martin Riegels, Klaus Walz
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Patent number: 5310855Abstract: The aromatic formaldehyde condensation products, which are substantially colorless and water-soluble and contain sulphonate and/or carboxylate groups, are obtainable by adding agents which have a reducing action during and/or after the condensation reaction, and are suitable for the treatment of textiles and leather.Type: GrantFiled: November 13, 1992Date of Patent: May 10, 1994Assignee: Bayer AktiengesellschaftInventors: Klaus Walz, Udo Hendricks, Hans-Albert Ehlert, Fritz Lesszinsky
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Patent number: 4988463Abstract: Agents which contain (a) an ester of aliphatic carboxylic acids and aliphatic alcohols having a boiling point of at least 150.degree. C. and --based on (a -b) 0.5-10% by weight of an amide of the formula ##STR1## in which R stands for C.sub.10 -C.sub.22 -alkyl or -alkenyl,R' stands for H or C.sub.1 -C.sub.4 -alkyl, or the two R' together stand for an ethylene bridge, andR" stands for the radicals ##STR2## or --CH.sub.2 --O--CH.sub.2 --, whereinR"' stands for H, C.sub.1 -C.sub.6 -alkyl or phenyl, and (c) 1-30% by weight of a non-ionic surfactant are used for removing foam, for preventing foam formation and for deaerating aqueous systems.Type: GrantFiled: March 13, 1989Date of Patent: January 29, 1991Assignee: Bayer AktiengesellschaftInventors: Klaus Walz, Karl-Heinz Breyer
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Patent number: 4943299Abstract: Levelling agents containingI. ethers of the general formula ##STR1## in which R.sub.1 denotes alkyl, alkenyl, cycloalkyl, aryl or aralkyl,R.sub.2 denotes hydrogen or methyl,x denotes 1, 2 or 3 andy denotes 0 to 7, andII. emulsifiers and, if desired,III. carriers for the dyeing of polyesters are used for the high-temperature dyeing of polyester fibres and polyester-containing materials.Type: GrantFiled: September 22, 1988Date of Patent: July 24, 1990Assignee: Bayer AktiengesellschaftInventors: Hans Schulze, Klaus Walz, Frank Bartkowiak, Karlhans Jakobs
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Patent number: 4456554Abstract: Ammonium compounds of the formula ##STR1## in which R and R.sub.1 designate C.sub.1 -C.sub.21 -alkyl or C.sub.2 -C.sub.21 -alkenyl,R' designates hydrogen or C.sub.1 -C.sub.4 -alkyl,R.sub.2 designates C.sub.1 -C.sub.4 -alkyl or hydroxy-C.sub.1 -C.sub.4 -alkyl,R.sub.3 designates hydrogen or C.sub.1 -C.sub.4 -alkyl andA.sup..crclbar. represents an anion of the formula ##STR2## in which R.sub.4 designates hydrogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy andR.sub.5 designates C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -hydroxyalkyl,a process for their preparation and their use as softeners for fibre materials.Type: GrantFiled: September 13, 1982Date of Patent: June 26, 1984Assignee: Bayer AktiengesellschaftInventors: Klaus Walz, Karl Schafer, Gunther Hoffarth, Hans Schulze
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Patent number: 4402702Abstract: Solid formulations of organic dyestuffs, or of optical brighteners, characterized in that they contain a mixture of(a) 70-90% by weight of a mineral oil,(b) 0.5-10% by weight of an amide of the formula ##STR1## in which R represents C.sub.10 -C.sub.22 -alkyl or -alkenyl,R.sub.1 represents H or C.sub.1 -C.sub.4 -alkyl, or the two R.sub.1 's together represent a 1,2-ethylene bridge andR.sub.2 represents ##STR2## alkylene, and R.sub.3 represents H, C.sub.1 -C.sub.6 -alkyl or phenyl,(c) 0.5-15% by weight of a non-ionic surface-active agent and(d) 0-8% by weight of a cationic or anionic surface-active agent,and processes for the production of low-dust and low-foam solid dyestuff formulations.Type: GrantFiled: December 16, 1981Date of Patent: September 6, 1983Assignee: Bayer AktiengesellschaftInventors: Vaclay Kaspar, Klaus Walz, Hans-Heinz Molls, Reinhold Hornle, Rainer Skerhut
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Patent number: 4385000Abstract: New surface-active phosphonic acid esters, which are inter alia suitable as emulsifiers and dispersants, a process for their preparation and emulsions and dispersions of water soluble polymers containing the new phosphonic acid esters and having high stability on storage.Type: GrantFiled: March 18, 1980Date of Patent: May 24, 1983Assignee: Bayer AktiengesellschaftInventors: Klaus Walz, Wilfried Nolte, Friedhelm Muller
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Patent number: 4369070Abstract: Aqueous dyestuff dispersions containing water-insoluble dyestuffs and water-soluble oxalkylation products which can be obtained by subjecting aromatic compounds containing phenolic OH groups to a condensation reaction with formaldehyde and amines which contain a NH group which is reactive towards formaldehyde, or containing derivatives of such oxalkylation products are suitable for pigmenting natural or synthetic materials.Type: GrantFiled: August 7, 1981Date of Patent: January 18, 1983Assignee: Bayer AktiengesellschaftInventors: Volker Aign, Karlheinz Wolf, Reinhold Hornle, Norbert Pusch, Klaus Walz
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Patent number: 4295852Abstract: Polyamide fibre materials are dyed with acid dyestuffs and/or metal complex dyestuffs in the presence of compounds of the formula ##STR1## in which R represents a C.sub.4 -C.sub.12 -alkyl, C.sub.1 -C.sub.12 -alkoxy, phenyl, cyclohexyl or C.sub.2 -C.sub.10 -hydroxyalkoxy radical,R.sub.1 represents hydrogen or a C.sub.1 -C.sub.4 -alkyl radical,n represents an integer from 1 to 10 andm represents a number from 1 to n+1,or water-soluble salts thereof.Type: GrantFiled: November 3, 1980Date of Patent: October 20, 1981Assignee: Bayer AktiengesellschaftInventors: Klaus Walz, Joachim Fiegel
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Patent number: 4280960Abstract: Phosphonic acid esters of the general formula ##STR1## in which R represents a C.sub.12 -C.sub.22 -alkyl or-alkenyl radical, a C.sub.7 --C.sub.18 -aralkyl radical or a radical of the formula --R.sub.4 --O--CO--R.sub.5 or --R.sub.4 --COO--R.sub.5, whereinR.sub.4 denotes an optionally substituted C.sub.2 --C.sub.4 -alkylene radical andR.sub.5 denotes a C.sub.6 --C.sub.22 -alkyl or -alkenyl radical or a cycloalkyl radical,R.sub.1 represents the ethylene and/or 1,2-propylene radical,R.sub.2 represents hydrogen, C.sub.1 --C.sub.4 -alkyl or --(R.sub.1 --O).sub.x-1 R.sub.1 --R.sub.3,R.sub.3 represents OH, Cl or Br,x represents an integer from 2 to 100 andn represents a number from 1 to 10,are used, especially in aqueous formulations, as emulsifying agents and dispersing agents.Type: GrantFiled: November 23, 1979Date of Patent: July 28, 1981Assignee: Bayer AktiengesellschaftInventors: Konrad Nonn, Klaus Walz, Karlheinz Wolf, Gunther Boehmke