Patents by Inventor Paul Rys
Paul Rys 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: 7453013Abstract: The invention relates to a catalytic method for the production of aliphatic and aromatic carbonyl compounds with at least one aldehyde or ketone function, whereby said compounds can also comprise at least one aldehyde and ketone function. A starting material comprising at least one aliphatic- and/or aromatic-bonded functional group of formula (I), where R1?H, alkyl or aryl, X?H, or a group which may be substituted by the sulphinyl group of a sulphoxide during the catalytic reaction, n=a whole number from 1 to 8, is oxidised in the presence of a sulphoxide and/or a sulphide and the presence of iron salts or redox pairs of iron/copper or silver/copper salts, by means of an oxidising agent with a redox potential of E0>+2 V vs. NHE, whereby the sulphoxide or sulphide has a catalytic function.Type: GrantFiled: September 11, 2007Date of Patent: November 18, 2008Assignee: Weylchem Frankfurt GmbHInventors: Franco Antognoli, Paul Rys
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Publication number: 20080004474Abstract: The invention relates to a catalytic method for the production of aliphatic and aromatic carbonyl compounds with at least one aldehyde or ketone function, whereby said compounds can also comprise at least one aldehyde and ketone function. A starting material comprising at least one aliphatic- and/or aromatic-bonded functional group of formula (I), where R1?H, alkyl or aryl, X?H, or a group which may be substituted by the sulphinyl group of a sulphoxide during the catalytic reaction, n=a whole number from 1 to 8, is oxidised in the presence of a sulphoxide and/or a sulphide and the presence of iron salts or redox pairs of iron/copper or silver/copper salts, by means of an oxidising agent with a redox potential of E0>+2 V vs. NHE, whereby the sulphoxide or sulphide has a catalytic function.Type: ApplicationFiled: September 11, 2007Publication date: January 3, 2008Applicant: CLARIANT SPECIALTY FINE CHEMICALS (DEUTSCHLAND) GmbHInventors: Franco Antognoli, Paul Rys
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Patent number: 7273954Abstract: The invention relates to a catalytic method for the production of aliphatic and aromatic carbonyl compounds with at least one aldehyde or ketone function, whereby said compounds can also comprise at least one aldehyde and ketone function. A starting material comprising at least one aliphatic- and/or aromatic-bonded functional group of formula (I), where R1=H, alkyl or aryl, X=H, or a group which may be substituted by the sulphinyl group of a sulphoxide during the catalytic reaction, n=a whole number from 1 to 8, is oxidised in the presence of a sulphoxide and/or a sulphide and the presence of iron salts or redox pairs of iron/copper or silver/copper salts, by means of an oxidising agent with a redox potential of Eo>+2 V vs. NHE, whereby the sulphoxide or sulphide has a catalytic function.Type: GrantFiled: November 14, 2003Date of Patent: September 25, 2007Assignee: Clariant Speciality Fine Chemicals (Deutschland) GmbHInventors: Franco Antognoli, Paul Rys
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Publication number: 20060135817Abstract: The invention relates to a catalytic method for the production of aliphatic and aromatic carbonyl compounds with at least one aldehyde or ketone function, whereby said compounds can also comprise at least one aldehyde and ketone function. A starting material comprising at least one aliphatic- and/or aromatic-bonded functional group of formula (I), where R1=H, alkyl or aryl, X=H, or a group which may be substituted by the sulphinyl group of a sulphoxide during the catalytic reaction, n=a whole number from 1 to 8, is oxidised in the presence of a sulphoxide and/or a sulphide and the presence of iron salts or redox pairs of iron/copper or silver/copper salts, by means of an oxidising agent with a redox potential of Eo>+2 V vs. NHE, whereby the sulphoxide or sulphide has a catalytic function.Type: ApplicationFiled: November 14, 2003Publication date: June 22, 2006Applicant: TEX-A-TEC AGInventors: Franco Antognoli, Paul Rys
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Publication number: 20050121336Abstract: The invention relates to a method for electro-catalytical hydrogenation of vat dyes and sulphide dyes in aqueous solutions, and to an apparatus for carrying out said method. The inventive method is suitable for batch operation and continuous operation. It works entirely without any reducing agents and provides a substantially salt-free dye concentrations of up to 200 g/l. The dyed threads are characterized by good friction qualities and by a high weaving yield. As far as waste water is concerned, no toxic load occurs and the salt loads are much lower, thereby enabling the waste water to be recycled in a substantially less complex manner in comparison with other conventional dye systems. The invention also relates to an apparatus for carrying out said method.Type: ApplicationFiled: December 20, 2002Publication date: June 9, 2005Inventors: Walter Marte, Otmar Dossenbach, Albert Roessler, Ulrich Meyer, Paul Rys
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Patent number: 5041634Abstract: Process for the preparation of compounds of the formula HO-Ar-COOH in which Ar is a substituted or unsubstituted aromatic ring system, by oxidizing, by means of oxygen or compounds which donate oxygen, compounds of the formula HO-Ar-R.sub.1 in which R.sub.1 is alkyl having 1 to 5 carbon atoms and Ar is as defined above, or the O-acyl derivatives of these compounds, in an organic solvent at 80.degree. to 130.degree. C. and in the presence of an acylating agent, a cobalt and/or manganese compound and a compound which donates bromide, ions, and subsequently hydrolysing the products in a conventional manner. In the presence of the acylating agent, a selective oxidation of the hydroxyl-substituted aromatic compounds to carboxylated hydroxy compounds, which are obtained in a good state of purity and yield, is obtained without the application of pressure.The compounds obtained in accordance with the process are, for example, valuable intermediates for the preparation of dyes, plastics and pharmaceuticals.Type: GrantFiled: December 1, 1988Date of Patent: August 20, 1991Assignee: Ciba-Geigy CorporationInventors: Martin Clausen, Paul Rys, Junkuan Wang
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Patent number: 4950306Abstract: Process for dyeing and printing cellulosic fiber materials with vat dyes in the presence of enediols as reducing agents and alkali, using in addition small amount of organic water-miscible solvents, for example low molecular weight alcohols, when reducing the vat dyes. The vatting of the vat dyes proceeds uniformly and completely within a relatively short time, and the resulting vat dyes are reproducible and notable for high levelness and fastness properties.Type: GrantFiled: July 27, 1989Date of Patent: August 21, 1990Assignee: Ciba-Geigy CorporatioinInventors: Walter Marte, Paul Rys
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Patent number: 4929771Abstract: Process for the preparation of alkyl-substituted phenols or naphthols by oxidizing the corresponding dialkylbenzenes or dialkylnaphthalenes, respectively, at elevated temperatures of, for example, 70.degree. to 130.degree. C. by means of oxygen or oxygen donors, in the absence of solvents and in the presence of an alkali metal salt or alkaline earth metal salt of an organic carboxylic acid having 5 to 14 carbon atoms, to give the corresponding 2,6-dialkylnaphthalene-or 1,4-dialkylphenyl monohydroperoxides and subsequently hydrolysing the latter in a customary manner.The process results in pure, easily isolatable products in a good yield. The products of the process according to the invention are valuable precursors and intermediates for, inter alia, dyes, plastics or pharmaceuticals.Type: GrantFiled: December 1, 1988Date of Patent: May 29, 1990Assignee: Ciba-Geigy CorporationInventors: Martin Clausen, Paul Rys, Wang Junkuan
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Patent number: 4861920Abstract: Process for the preparation of 2,6-dihydroxynaphthalene from 2,6-dialkylnaphthalenes, which are dissolved in an inert solvent and are oxidized at temperatures from 50.degree. to 150.degree. C. by means of oxygen or oxygen donors, in the presence of an alkali metal salt or alkaline earth metal salt of an organic carboxylic acid having 5 to 14 carbon atoms, to give the corresponding 2,6-dialkylnaphthalene dihydroperoxides, and the latter are subsequently hydrolysed.The process results in pure, easily isolatable products in a good yield. The process products according to the invention are valuable intermediates for, inter alia, dyes, plastics, synthetic fibres, polymeric liquid crystals or pharmaceuticals.Type: GrantFiled: March 14, 1988Date of Patent: August 29, 1989Assignee: Ciba-Geigy CorporationInventors: Martin Clausen, Paul Rys
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Process for the production of polycrystalline silicon coatings by electrolytic deposition of silicon
Patent number: 4773973Abstract: A novel process for the electrolytic deposition of silicon from a melt containing covalent silicon compounds, in particular silicon tetrahalides, and furthermore aluminium halides, alkali metal halides and halides of transition metals is carried out at relatively low temperatures of 100.degree. to 350.degree. C. in an inert atmosphere. The silicon is deposited cathodically or anodically onto electrically conductive material.The silicon coatings are homogeneous and adhere firmly to the substrate. The coated materials can be used for the production of photoconductive or photovoltaic devices.Type: GrantFiled: March 8, 1988Date of Patent: September 27, 1988Assignee: Ciba-Geigy AGInventors: Hans R. Gruniger, Rudolf Kern, Paul Rys -
Process for the production of polycrystalline silicon coatings by electrolytic deposition of silicon
Patent number: 4759830Abstract: A novel process for the electrolytic deposition of silicon from a melt containing covalent silicon compounds, in particular silicon tetrahalides, and furthermore aluminum halides, alkali metal halides and halides of transition metals is carried out at relatively low temperatures of 100.degree. to 350.degree. C. in an inert temperature. The silicon is deposited cathodically or anodically onto electrically conductive material.The silicon coatings are homogeneous and adhere firmly to the substrate. The coated materials can be used for the production of photoconductive or photovoltaic devices.Type: GrantFiled: August 18, 1987Date of Patent: July 26, 1988Assignee: Ciba-Geigy AGInventors: Hans R. Gruniger, Rudolf Kern, Paul Rys -
Patent number: 4042635Abstract: Compounds which contain a group bonded directly to an aromatic nucleus of the formula--(CH.sub.2 --).sub.n --X (1)in which n is a positive integer having a value of at least 2 and X represents a removable substituent.Type: GrantFiled: December 8, 1975Date of Patent: August 16, 1977Assignee: Ciba-Geigy CorporationInventors: Paul Rys, Rolf Vogelsanger
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Patent number: 3950403Abstract: Compounds which contain a group bonded directly to an aromatic nucleus of the formula--(CH.sub.2 --).sub.n --X 1.in which n is a positive integer having a value of at least 2 and X represents a removable substituent.Type: GrantFiled: December 2, 1974Date of Patent: April 13, 1976Assignee: Ciba-Geigy CorporationInventors: Paul Rys, Rolf Vogelsanger