Patents by Inventor Hans H. Kuhn
Hans H. Kuhn 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: 6764969Abstract: A textile substrate is provided which is coated with a film comprising iron (III) oxide hydroxide and aluminum oxide hydroxide. This film or coating is formed by contacting the textile substrate with an aqueous solution comprising ferrous or ferric salts and aluminum salts. The iron (II), iron (III), and aluminum ions are hydrolyzed and the iron (II) ions are also oxidized under controlled conditions. These hydrolyzed species then, it is believed, coprecipitate or copolymerized to on the textile surface to form a smooth, coherent, substantially amorphous iron (III) oxide/aluminum oxide hydroxide film or coating on the surface of the substrate without forming an insoluble iron (III) or aluminum hydroxide precipitate in the solution. This is accomplished by controlling the reaction conditions such that the rates of adsorption onto the substrate surface of both iron (III) and aluminum oxide hydroxides are greater than the rates of formation of said same oxide hydroxide particles.Type: GrantFiled: March 30, 1999Date of Patent: July 20, 2004Assignee: Milliken & CompanyInventors: Hans H. Kuhn, Peter K. Kang
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Patent number: 6022619Abstract: A colored textile composite is produced by forming an iron (III) oxide film on a textile surface. This is accomplished by contacting the textile with an aqueous solution having an iron (II) or iron (III) species present. The iron (II) ion resulting from the dissociated iron (II) salt, if an iron (II) salt is utilized, is first hydrolyzed within the aqueous solution and then oxidized under controlled conditions to form iron (III) oxide (hydroxide). The iron (III) ion resulting from the dissociated iron (III) salt, if an iron (III) salt is utilized, is only hydrolyzed under controlled condition to form iron (III) oxide (hydroxide). The iron (III) oxide is then nucleated and forms a smooth and coherent iron (III) oxide film or coating on the surface of the textile without forming an insoluble iron (III) hydroxide precipitate in the solution.Type: GrantFiled: January 15, 1998Date of Patent: February 8, 2000Inventor: Hans H. Kuhn
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Patent number: 5928720Abstract: A textile substrate is provided which is coated with a film comprising iron (III) oxide hydroxide and aluminum oxide hydroxide. This film or coating is formed by contacting the textile substrate with an aqueous solution comprising ferrous or ferric salts and aluminum salts. The iron (II), iron (III), and aluminum ions are hydrolyzed and the iron (II) ions are also oxidized under controlled conditions. These hydrolyzed species then, it is believed, coprecipitate or copolymerize to on the textile surface to form a smooth, coherent, substantially amorphous iron (III) oxide/aluminum oxide hydroxide film or coating on the surface of the substrate without forming an insoluble iron (III) or aluminum hydroxide precipitate in the solution. This is accomplished by controlling the reaction conditions such that the rates of adsorption onto the substrate surface of both iron (III) and aluminum oxide hydroxides are greater than the rates of formation of said same oxide hydroxide particles.Type: GrantFiled: January 15, 1998Date of Patent: July 27, 1999Assignee: Milliken & CompanyInventors: Hans H. Kuhn, Peter K. Kang
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Patent number: 5240644Abstract: A method is provided for the preparation of a conductive composition containing a polymerized aromatic amine wherein the aromatic amine is oxidatively polymerized in an acidic aqueous medium in the presence of an oxidizing agent, a doping agent and an aromatic polyalkyleneoxide in an amount sufficient to stabilize the resulting composition. Preferably, the aromatic amine is aniline or a substituted aniline. Compositions produced by such method are also disclosed. These compositions are useful for treating various substrates to make such substrates conductive.Type: GrantFiled: December 4, 1991Date of Patent: August 31, 1993Assignee: Milliken Research CorporationInventors: Carey N. Barry, Jr., Hans H. Kuhn
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Patent number: 5108829Abstract: A textile material, such as fibers, filaments, yarns and fabrics made therefrom, is rendered electrically conductive by a polypyrrole film deposited on the textile material by chemical oxidation of pyrrole in an aqueous solution also containing an oxidizing agent and anthraquinone-2-sulfonic acid as a dopant.Type: GrantFiled: April 3, 1991Date of Patent: April 28, 1992Assignee: Milliken Research CorporationInventor: Hans H. Kuhn
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Patent number: 5102727Abstract: An electrically conductive textile fabric is provided having a conductivity gradient created by varying the relative concentration of high and low conductivity yarns during construction of the fabric. In the case of woven and knitted fabrics, the relative number of high and low conductivity yarns per inch may be varied in the warp or weft direction or both.Type: GrantFiled: June 17, 1991Date of Patent: April 7, 1992Assignee: Milliken Research CorporationInventors: Edgar H. Pittman, Hans H. Kuhn
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Patent number: 5030508Abstract: Fabrics are made electrically conductive by contacting the fiber under agitation conditions with an aqueous solution of an aniline compound, oxidizing agent and a doping agent or counter ion and then depositing onto the surface of individual fibers of the fabric a prepolymer of the aniline compound so as to uniformly and coherently cover the fibers with a conductive film of the polymerized aniline compound and wherein, furthermore, the oxidizing agent is a vanadyl compound whereby the reaction rate is controlled such that the prepolymer is uniformly and coherently adsorbed onto the surface of the textile material, thereby providing improved films of electrically conductive polymerized compound on the textile material.Type: GrantFiled: October 26, 1990Date of Patent: July 9, 1991Assignee: Milliken Research CorporationInventors: Hans H. Kuhn, William C. Kimbrell, Jr.
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Patent number: 4981718Abstract: Fabrics are made electrically conductive by contacting the fiber under agitation conditions with an aqueous solution of an aniline compound, oxidizing agent and a doping agent or counter ion and then depositing onto the surface of individual fibers of the fabric a prepolymer of the aniline compound so as to uniformly and coherently cover the fibers with a conductive film of the polymerized aniline compound and wherein, furthermore, the oxidizing agent is a vanadyl compound whereby the reaction rate is controlled such that the prepolymer is uniformly and coherently absorbed onto the surface of the textile material, thereby providing improved films of electrically conductive polymerized compound on the textile material.Type: GrantFiled: June 27, 1988Date of Patent: January 1, 1991Assignee: Milliken Research CorporationInventors: Hans H. Kuhn, William C. Kimbrell, Jr.
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Patent number: 4975317Abstract: Fabrics are made electrically conductive by contacting the fabric under agitation conditions with an aqueous solution of a pyrrole or aniline compound, and an oxidizing agent and a doping agent or counter ion; and then epitaxially depositing onto the surface of the individual fibers of said fabric the in status nascendi forming polymer of the pyrrole or aniline compound so as to uniformly and coherently cover the fibers with an ordered conductive film of the polymerized pyrrole or aniline compound. Individual fibers and yarns can be similarly treated and then formed into fabrics. Products made by the process are also described.Type: GrantFiled: June 16, 1989Date of Patent: December 4, 1990Assignee: Milliken Research CorporationInventors: Hans H. Kuhn, William C. Kimbrell, Jr.
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Patent number: 4877646Abstract: Fabrics are made electrically conductive by contacting the fiber under agitation conditions with an aqueous solution of a pyrrole compound, an oxidizing agent and a doping agent or counter ion and then depositing onto the surface of individual fibers of the fabric a prepolymer of the pyrrole compound so as to uniformly and coherently cover the fibers with a conductive film of the polymerized pyrrole compound and wherein, furthermore, the oxidizing agent is a ferric salt and the aqueous solution further contains a weak complexing agent for ferric ions to effectively control the reaction rate such that the prepolymer is uniformly and coherently adsorbed onto the surface of the textile material, thereby providing improved films of electrically conductive polymerized compound on the textile material.Type: GrantFiled: June 27, 1988Date of Patent: October 31, 1989Assignee: Milliken Research CorporationInventors: Hans H. Kuhn, William C. Kimbrell, Jr.
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Patent number: 4803096Abstract: Fabrics are made electrically conductive by contacting the fabric under agitation conditions with an aqueous solution of a pyrrole or aniline compound, and an oxidizing agent and a doping agent or counter ion; and then epitaxially depositing onto the surface of the individual fibers of said fabric the in status nascendi forming polymer of the pyrrole or aniline compound so as to uniformly and coherently cover the fibers with an ordered conductive film of the polymerized pyrrole or aniline compound. Individual fibers and yarns can be similarly treated and then formed into fabrics. Products made by the process are also described.Type: GrantFiled: August 3, 1987Date of Patent: February 7, 1989Assignee: Milliken Research CorporationInventors: Hans H. Kuhn, William C. Kimbrell, Jr.
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Patent number: 4247342Abstract: Ethylene glycol terephthalate oligomer deposits and dyestuff residue are removed from textile dyeing equipment by contacting the deposits and residue with an aqueous composition at a temperature of from about 90.degree. C. to about 140.degree. C.; the aqueous composition consisting essentially of water, an effective amount of a base component to provide the aqueous admixture with a pH of at least about 11.5, an effective minor amount of a phase transfer agent sufficient to catalytically hydrolyze the oligomer deposits present within the textile dyeing machinery, and an effective minor amount of a cationic or nonionic surfactant to solubilize the dyestuff residue present in the textile dyeing machinery. The composition can further include an effective minor amount of a reducing agent to substantially discolor the solubilized dyestuff.Type: GrantFiled: May 24, 1978Date of Patent: January 27, 1981Assignee: Milliken Research CorporationInventor: Hans H. Kuhn
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Patent number: 4215171Abstract: A method for producing an elastomer modified textile material which comprises coating a textile substrate with at least 1 weight percent of an amine substituted elastomer, curing the resulting elastomer coated substrate, and thereafter recovering the elastomer modified material. The elastomer modified material possesses improved adhesion properties for subsequent laminating of a second substrate thereto.Type: GrantFiled: June 2, 1978Date of Patent: July 29, 1980Assignee: Milliken Research CorporationInventors: Francis W. Marco, Hans H. Kuhn
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Patent number: 4144028Abstract: Tint compositions for nylon having improved fugitivity properties comprising an admixture of a colorant having the general formulaR--N--[(CH.sub.2 CH.sub.2 O).sub.n H].sub.2 }.sub.xwherein R is an organic dyestuff radical, x is an integer of 1 to 6, and the product of 2n times x is from about 200 to about 300, and a minor effective amount of a free radical inhibitor to retard free radical interaction between the colorant and the nylon.Type: GrantFiled: September 3, 1976Date of Patent: March 13, 1979Assignee: Milliken Research CorporationInventors: Peter J. Hauser, James E. Hendrix, Hans H. Kuhn
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Patent number: 4141684Abstract: Liquid, water-insoluble colorants and aqueous dispersions of same are provided in which the colorant is represented by the formulaR - (oleophilic polymeric constituent).sub.n,wherein R is an organic dyestuff radical, the oleophilic polymeric constituent is polyalkylene oxides and co-polymers of polyalkylene oxides in which the alkylene moiety of the polymeric constituent contains at least 3 carbon atoms and such polymeric constituent has a molecular weight of at least 500, and .sub.n is an integer of from 1 to 6.Type: GrantFiled: December 22, 1977Date of Patent: February 27, 1979Assignee: Milliken Research CorporationInventor: Hans H. Kuhn