Patents by Inventor Karlheinz Wolf
Karlheinz Wolf 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: 6562456Abstract: An elastane multifilament yarn havig two to six individual filaments which, when being unwound from a bobbin, is splittable into individual filaments, is produced by a process wherein multihole spinning jets are deployed in the spinning head of a conventional dry spinning apparatus, laminarizing the spinning gas flow to prevent entanglement of the individual filaments and passing the resulting yarn through a thread guide with one opening per individual filament.Type: GrantFiled: October 29, 1997Date of Patent: May 13, 2003Assignee: Bayer Faser GmbHInventors: Ben Bruner, James F. Heslep, Hans-Josef Behrens, Konrad Schmitz, Karlheinz Wolf
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Patent number: 5723080Abstract: An improved dry spinning process for manufacturing splittable elastane multifilament yarns wherein the coalescence of individual filaments is prevented, through the use of multihole spinning jets, laminarizing gas flow and thread guides having one opening per individual fiber.Type: GrantFiled: May 16, 1996Date of Patent: March 3, 1998Assignee: Bayer Faser GmbHInventors: Ben Bruner, James F. Heslep, Hans-Josef Behrens, Konrad Schmitz, Karlheinz Wolf
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Patent number: 4909853Abstract: Pigment preparations which contain an organic pigment and/or carbon black and a surfactant from the sulphosuccinic acid ester and/or alkylbenzenesulphonate series and which have been dried, if appropriate after wet comminution, by spray- or freeze-drying from an aqueous medium, and the use of these preparations for pigmenting high molecular weight organic material, in particular thermoplastics.Type: GrantFiled: March 1, 1988Date of Patent: March 20, 1990Assignee: Bayer AktiengesellschaftInventors: Martin Wienkenhover, Volker Paulat, Wolfgang Karnath, Hans Schulze, Karlheinz Wolf, Karl-Heinz Wieser
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Patent number: 4846409Abstract: Low-dust, storage-stable granules are obtained in a continuous operating process in which the powder to be granulated is granulated in succession in a high-speed and low-speed mixing granulator, with the addition of a granulating liquid, and is then dried in a fluidized bed into which a liquid containing a binder is sprayed. The process is particularly suitable for the preparation of dyestuff granules which can easily be dispersed in the use medium.Type: GrantFiled: September 28, 1987Date of Patent: July 11, 1989Assignee: Bayer AktiengesellschaftInventors: Vaclav Kaspar, Manfred Baecker, Horst Brandt, Friedrich Grimmelijkhuizen, Karlheinz Wolf
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Patent number: 4772677Abstract: This invention relates to highly stretchable elasthane fibres (Spandex fibres) based on segmented polyurethane(urea)s with improved elastic properties and high resistance to microbial degradation, characterized in that the polyurethane(urea)s used for the synthesis of the elasthanes are prepared from mixtures of relatively high molecular weight copolyester diols in the molecular weight range of from 2,500 to 4,000 and relatively high molecular polytetrahydrofurandiols in the molecular weight range of from 1,500 to 3,000.Type: GrantFiled: November 23, 1987Date of Patent: September 20, 1988Assignee: Bayer AktiengesellschaftInventors: Michael Kausch, Carlhans Suling, Hans Schroer, Karlheinz Wolf, Rudi Dauscher
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Patent number: 4754020Abstract: A new method of diazotization consists in using as the diazotizing agent in an aqueous, aqueous organic or organic medium the system comprising salt of nitrous acid+acid insoluble in the reaction medium, in particular organic or inorganic cation exchangers having acid groups. The diazonium salt solutions thus prepared are immediately reacted with coupling components to give azo dyestuffs, the insoluble acid and/or its salt being separated off before or after the coupling.Type: GrantFiled: March 7, 1986Date of Patent: June 28, 1988Assignee: Bayer AktiengesellschaftInventors: Joachim Wolff, Karlheinz Wolf, Reinhold M. Klipper, Peter M. Lange
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Patent number: 4711642Abstract: Liquid water-containing concentrated reactive dye-stuff preparations of monofluorotriazinyl reactive dye-stuffs with a pH value of at least 8, preferably 8.5-10, are stable on storage and display no noticeable hydrolysis, even after prolonged storage.Type: GrantFiled: September 11, 1986Date of Patent: December 8, 1987Assignee: Bayer AktiengesellschaftInventors: Joachim Wolff, Karlheinz Wolf
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Patent number: 4702744Abstract: Stable, concentrated aqueous solutions of, in particular, anionic reactive dyestuffs are obtained in a comparatively simple manner by freeing from salts, preferably by means of membrane separation processes, solutions of these substances just as they are obtained in the course of synthesis, and by replacing, with the aid of ion exchangers, the cations which cause sparing solubility.Type: GrantFiled: May 27, 1986Date of Patent: October 27, 1987Assignee: Bayer AktiengesellschaftInventors: Joachim Wolff, Jochen Koll, Karlheinz Wolf, Reinhold M. Klipper, Peter M. Lange
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Patent number: 4685933Abstract: Concentrated aqueous solutions of dyestuffs having water-solubilizing groups which contain cyanamides of the formula ##STR1## wherein R.sub.1 =NHCN, NHCONH.sub.2 or NHCONHCH.sub.3 where n=0 andm=1 or n=1 and m=0,have a long shelf life, in particular also in the case of reactive dyestuffs.Type: GrantFiled: June 24, 1985Date of Patent: August 11, 1987Assignee: Bayer AktiengesellschaftInventors: Joachim Wolff, Karlheinz Wolf, Werner Marschner
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Patent number: 4602915Abstract: A new storage-stable solution of the reactive dyestuff of the formula ##STR1## wherein CuPc=the radical of a Cu phthalocyanine dyestuff,m=1, 2 or 3,n=1, 2 or 3,m+n=3 to 4 andM.sup..sym. =H.sup..sym., an alkali metal cation or an ammonium ion,is provided.The storage-stable solution according to the invention is characterized in that it contains 10-35% by weight of reactive dyestuff (1), 10-30% by weight of solubilizing agent, 0-10% by weight of anionic dispersing agent, 0-7% by weight of inorganic salts, such as Na.sub.2 SO.sub.4, Li.sub.2 SO.sub.4 and the like, and 0.1-3% by weight of buffer (pH 4-7), the remainder to make up to 100% by weight being water.Type: GrantFiled: January 17, 1985Date of Patent: July 29, 1986Assignee: Bayer AktiengesellschaftInventors: Joachim Wolff, Karlheinz Wolf
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Patent number: 4564632Abstract: The invention relates to insecticidal and acaricidal agents which contain water-insoluble active compounds and water-soluble oxyalkylation products of compounds prepared by adding styrenes onto phenols or naphthols, and which form a colloidal solution when diluted with water, and to their use.Type: GrantFiled: November 25, 1981Date of Patent: January 14, 1986Assignee: Bayer AktiengesellschaftInventors: Konrad Nonn, Karlheinz Wolf, Johannes Haas, Volker Paulat
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Patent number: 4527746Abstract: Process for preparing granules of water-insoluble solids, characterized in that a non-thixotropic press or filter cake of the solid is comminuted by cutting and the product obtained is dried while in rolling motion in a dryer for pourable solids.Type: GrantFiled: March 22, 1983Date of Patent: July 9, 1985Assignee: Bayer AktiengesellschaftInventors: Hans-Heinz Molls, Vaclav Kaspar, Bernhard Vosteen, Georg Dehmel, Reinhold Hornle, Karlheinz Wolf
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Patent number: 4443225Abstract: The lyotropic, liquid-crystalline, aqueous phase of a reactive dyestuff of the formula ##STR1## wherein M.sym. represents H.sym. or an alkali metal cation (preferably Na.sym., K.sym. or Li.sym.) andR is a fibre-reactive groupingpresent in water at room temperature in a concentration of 10-25%, if appropriate in the presence of concentration-increasing additives and/or buffer substances, is highly suitable for preparing dyebaths and print pastes for application to natural and synthetic substrates, in particular cotton, wool, regenerated cellulose, paper and leather.Type: GrantFiled: November 23, 1982Date of Patent: April 17, 1984Assignee: Bayer AktiengesellschaftInventors: Joachim Wolff, Karlheinz Wolf, Jochen Koll, Reinhold Hornle, Hans-Heinz Molls, Volker Paulat
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Patent number: 4386195Abstract: Dyestuff preparations which are capable of flow and contain (a) at least one dyestuff which is sparingly soluble or insoluble in water, (b) at least one polyester of phthalic acid and a polyalcohol and optionally a monohydric alcohol with 1-18 C atoms and (c) optionally further auxiliaries, and their use for dyeing plastics, in particular polyurethane plastics.Type: GrantFiled: March 2, 1981Date of Patent: May 31, 1983Assignee: Bayer AktiengesellschaftInventors: Fritz Bremer, Michael Kressner, Karlheinz Wolf, Konrad Nonn, Reinhold Hornle, Georg Pape
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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: 4340389Abstract: Process for the preparation of water-soluble dyestuffs with a low salt content, characterized in that the water-soluble dyestuffs are salted out from their aqueous solutions and/or dispersions by adding salts which are volatile at temperatures of about 40.degree. C. to about 250.degree. C. under a pressure of about 10 mm Hg to about 760 mm Hg, the dyestuffs are isolated and the volatile salts are volatilized during the drying process.Type: GrantFiled: April 15, 1981Date of Patent: July 20, 1982Assignee: Bayer AktiengesellschaftInventors: Konrad Nonn, Joachim Laser, Karlheinz Wolf, Reinhold Hornle, Erich Istel
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Patent number: 4332587Abstract: A colorant preparation containing(A) a colorant which is sparingly soluble or insoluble in water,(B) a plasticizer based on an ester and(C) a reaction product of a fatty acid ester of a polyhydric alcohol and ethylene oxide, a process for the production of this preparation and its use for pigmenting plastics.Type: GrantFiled: January 28, 1981Date of Patent: June 1, 1982Assignee: Bayer AktiengesellschaftInventors: Michael Kressner, Joachim Kolbe, Fritz Bremer, Georg Pape, Karlheinz Wolf, Ferdinand Kummeler
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Patent number: 4329145Abstract: Highly concentrated liquid preparations of disperse dyestuffs are obtained with a low consumption of energy by first adding a dispersing agent to the water-moist dyestuff press-cake to convert it into a form in which it is capable of flow, subjecting this product to wet grinding and increasing the dyestuff content of the resulting, insufficiently concentrated dispersion in a second step by means of a membrane separation process, for example pressure permeation.Type: GrantFiled: August 8, 1980Date of Patent: May 11, 1982Assignee: Bayer AktiengesellschaftInventors: Jochen Koll, Hans-Heinz Molls, Reinhold Hornle, Erhard Schuffenhauer, Horst Brandt, Fritz Bremer, Karlheinz Wolf, Willy Schiwy
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Patent number: 4295849Abstract: The invention relates to the preparation of pulverulent formulations of transfer printing dyestuffs.The process is characterized in that the aqueous dispersions of these dyestuffs are mixed with compounds of the formulaR--ZwhereinR denotes a hydrophobic radical with at least 5 C atoms andZ denotes the groups --COOH, --NH.sub.2, --O(C.sub.2 H.sub.4 O).sub.n H, --NX.sub.1 X.sub.2 or --NH(CH.sub.2).sub.m NX.sub.1 X.sub.2,in whichn is 0, 1 or 2,m is 2-6 andX.sub.1 /X.sub.2 is H or C.sub.1 -C.sub.4 -alkyl,with the proviso that R represents a non-cyclic aliphatic radical when Z represents COOH,and the aqueous mixtures are converted into dry pulverulent form in a manner which is in itself known.The preparation can easily be dispersed in organic media, for example in organic solvents such as those customary in the preparation of printing pastes, and are outstandingly suitable for the preparation of printing inks for printing temporary supports for heat transfer printing.Type: GrantFiled: March 9, 1977Date of Patent: October 20, 1981Inventors: Konrad Nonn, Karlheinz Wolf, Artur Haus, Reinhold Hornle
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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