Patents by Inventor Hans-Peter Schmitz
Hans-Peter Schmitz 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: 7348396Abstract: The invention relates to polymeric phosphinic acids and their salts of the formula (I) where X is hydrogen or 1/m of a metal of valency m, or is a protonated nitrogen base, R1 and R2 are identical or different and are hydrogen, a carboxy group, a carboxylic acid derivative, an unsubstituted or substituted alkyl group having from 1 to 10 carbon atoms, phenyl, benzyl, or alkyl-substituted aromatic systems, R3 and R4 may be identical or different and are an unsubstituted or substituted alkyl group having from 2 to 20 carbon atoms, or are OX, with the above meaning for X, and ? is the average number of monomer units. The invention further relates to a process for preparing the abovementioned compounds, and to their use.Type: GrantFiled: September 29, 2006Date of Patent: March 25, 2008Assignee: Clariant Produkte (Deutschland) GmbHInventors: Martin Sicken, Werner Krause, Norbert Weferling, Hans-Peter Schmitz
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Publication number: 20070027297Abstract: The invention relates to polymeric phosphinic acids and their salts of the formula (I) where X is hydrogen or 1/m of a metal of valency m, or is a protonated nitrogen base, R1 and R2 are identical or different and are hydrogen, a carboxy group, a carboxylic acid derivative, an unsubstituted or substituted alkyl group having from 1 to 10 carbon atoms, phenyl, benzyl, or alkyl-substituted aromatic systems, R3 and R4 may be identical or different and are an unsubstituted or substituted alkyl group having from 2 to 20 carbon atoms, or are OX, with the above meaning for X, and u is the average number of monomer units. The invention further relates to a process for preparing the abovementioned compounds, and to their use.Type: ApplicationFiled: September 29, 2006Publication date: February 1, 2007Inventors: Martin Sicken, Werner Krause, Norbert Weferling, Hans-Peter Schmitz
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Patent number: 7129320Abstract: The invention relates to polymeric phosphinic acids and their salts of the formula (I) where X is hydrogen or 1/m of a metal of valency m, or is a protonated nitrogen base, R1 and R2 are identical or different and are hydrogen, a carboxy group, a carboxylic acid derivative, an unsubstituted or substituted alkyl group having from 1 to 10 carbon atoms, phenyl, benzyl, or alkyl-substituted aromatic systems, R3 and R4 may be identical or different and are an unsubstituted or substituted alkyl group having from 2 to 20 carbon atoms, or are OX, with the above meaning for X, and ? is the average number of monomer units. The invention further relates to a process for preparing the above-mentioned compounds, and to their use.Type: GrantFiled: March 4, 2004Date of Patent: October 31, 2006Assignee: Clariant GmbHInventors: Martin Sicken, Werner Krause, Norbert Weferling, Hans-Peter Schmitz
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Publication number: 20040176580Abstract: The invention relates to polymeric phosphinic acids and their salts of the formula (I) 1Type: ApplicationFiled: March 4, 2004Publication date: September 9, 2004Applicant: Clariant GmbHInventors: Martin Sicken, Werner Krause, Norbert Weferling, Hans-Peter Schmitz
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Patent number: 6770779Abstract: The present invention relates to a process for the preparation of alkylphosphonous acid esters which comprises a) reacting elemental yellow phosphorus with alkylating agents in the presence of a base to give a mixture which comprises, as principal constituents, the (metal) salts of alkylphosphonous, phosphorous and hypophosphorous acids, b) esterifying the principal constituents of the mixture from a) to give an ester mixture, c) isolating the ester of the alkylphosphonous acid from the ester mixture. The invention likewise relates to the use of the alkylphosphonous acid esters prepared by this process as precursors for further syntheses, inter alia for the preparation of crop protection agents.Type: GrantFiled: May 24, 2000Date of Patent: August 3, 2004Assignee: Clariant GmbHInventors: Norbert Weferling, Martin Sicken, Hans-Peter Schmitz, Günter Kolbe
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Patent number: 6727335Abstract: The invention relates to polymeric phosphinic acids and their salts of the formula (I) in which X is hydrogen or a 1/m metal of valency m, R1 and R2 are identical or different and are hydrogen, a carboxyl group, a carboxylic acid derivative, an unsubstituted or substituted alkyl group having 1 to 10 carbon atoms, phenyl, benzyl or alkyl-substituted aromatics, R3 and R4 are identical or different and are hydrogen or a vinyl group of the formula (VI) —CR1═CHR2 (VI) in which R1 and R2 have the abovementioned meaning, and {overscore (u)} is the average number of monomer units. The invention also relates to a process for the preparation of the abovementioned compounds and their use.Type: GrantFiled: April 17, 2003Date of Patent: April 27, 2004Assignee: Clariant GmbHInventors: Martin Sicken, Norbert Weferling, Hans-Peter Schmitz
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Publication number: 20030216533Abstract: The invention relates to polymeric phosphinic acids and their salts of the formula (I) 1Type: ApplicationFiled: April 17, 2003Publication date: November 20, 2003Applicant: Clariant GmbHInventors: Martin Sicken, Norbert Weferling, Hans-Peter Schmitz
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Patent number: 6639017Abstract: The invention relates to flame-retardant, unsaturated polyester resins made from unsaturated and saturated dicarboxylic acids and/or their anhydrides, from polyhydric alcohols, from one or more monomers and from a reactive phosphorus compound, which contain structural units of the formula IV where R1 is straight-chain or branched alkyl, cycloalkyl, aryl or alkylaryl groups having from 1 to 18 carbon atoms and R2 is methyl or hydrogen. The invention likewise relates to a process for preparing such polyester resins and to their use.Type: GrantFiled: August 28, 1997Date of Patent: October 28, 2003Assignee: Clariant GmbHInventors: Sebastian Hörold, Hans-Peter Schmitz
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Patent number: 6600068Abstract: The invention relates to a process for preparing ethanebis(methylphosphinic) acid which comprises reacting ethyne (acetylene) with methyl phophonous acid. The invention further relates to the use of the ethanebis(methylphosphinic) acid prepared by this process for preparing flame retardants or preparing other phosphorus-containing products.Type: GrantFiled: December 19, 2001Date of Patent: July 29, 2003Assignee: Clariant GmbHInventors: Martin Sicken, Hans-Peter Schmitz
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Patent number: 6600067Abstract: The invention relates to a process for preparing ethylenediphosphonic acids of the formula I, where R1 and R2 may be identical or different and are hydrogen, a carboxy group, a carboxylic acid derivative, an unsubstituted or substituted alkyl group having from 1 to 10 carbon atoms, phenyl, benzyl, or alkyl-substituted aromatic systems, which comprises reacting phosphorous acid (H3PO3) directly with alkynes.Type: GrantFiled: December 19, 2001Date of Patent: July 29, 2003Assignee: Clariant GmbHInventors: Martin Sicken, Hans-Peter Schmitz
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Patent number: 6583315Abstract: The invention relates to a process for preparing ethanebis(alkylphosphinic) acids by a) reacting elemental yellow phosphorus with alkyl halides in the presence of alkali metal hydroxide or of alkaline earth metal hydroxide to give a mixture whose main constituents are the alkali metal salts and/or alkaline earth metal salts of alkylphosphonous, phosphorous, and hypophosphorous acid, b) liberating alkylphosphonous, phosphorous, and hypophosphorous acid by adding mineral acids, and also at the same time precipitating the alkali metal ions and, respectively, alkaline earth metal ions in the form of their salt of the mineral acids, and then c) esterifying the alkylphosphonous acid from the mixture of the alkylphosphonous, phosphorous, and hypophosphorous acid, d) isolating the ester of alkylphosphonous acid from the mixture and hydrolyzing the same to give alkylphosphonous acid, and e) preparing, from the alkylphosphonous acid, the corresponding ethanebis(alkylphosphinic) acid of the general formula (I) wherType: GrantFiled: December 19, 2001Date of Patent: June 24, 2003Assignee: Clariant GmbHInventors: Martin Sicken, Norbert Weferling, Hans-Peter Schmitz
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Patent number: 6569974Abstract: The invention relates to polymeric phosphinic acids and their salts of the formula (I) in which X is hydrogen or a 1/m metal of valency m, R1 and R2 are identical or different and are hydrogen, a carboxyl group, a carboxylic acid derivative, an unsubstituted or substituted alkyl group having 1 to 10 carbon atoms, phenyl, benzyl or alkyl-substituted aromatics, R3 and R4 are identical or different and are hydrogen or a vinyl group of the formula (VI) in which R1 and R2 have the abovementioned meaning, and {overscore (u)} is the average number of monomer units. The invention also relates to a process for the preparation of the abovementioned compounds and their use.Type: GrantFiled: March 22, 2000Date of Patent: May 27, 2003Assignee: Clariant GmbHInventors: Martin Sicken, Norbert Weferling, Hans-Peter Schmitz
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Publication number: 20030073865Abstract: The invention relates to a process for preparing ethanebis(alkylphosphinic) acids byType: ApplicationFiled: December 19, 2001Publication date: April 17, 2003Applicant: Clariant GmbHInventors: Martin Sicken, Norbert Weferling, Hans-Peter Schmitz
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Patent number: 6536254Abstract: The invention relates to a process for the production of tailored blanks by the hot rolling of a strip and to an apparatus for the performance of said process. To obtain tailored blanks to be cut to length from the rolled strip, the hot strip is cooled or heated in portions, so that with a substantially constant rolling force the strip undergoes a differential decrease in thickness in the individual portions, which have been given a differential yield stress value by the differential temperature adjustment.Type: GrantFiled: June 18, 2001Date of Patent: March 25, 2003Assignee: Thyssen Krupp AGInventors: Rudolf Kawalla, Friedrich Behr, Hans-Peter Schmitz
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Patent number: 6534673Abstract: The invention relates to a process for preparing salts of dialkylphosphinic acids, which comprises a) reacting alkylphosphonous and/or hypo- phosphorous acid and/or alkali metal salts thereof with olefins in the presence of a free-radical initiator to give dialkylphosphinic acids and/or alkali metal salts thereof and b) reacting the dialkylphosphinic acids and/or alkali metal salts thereof obtained according to a) with metal compounds of Mg, Ca, Al, Sb, Sn, Ge, Ti, Zn, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na and/or K to give the metal dialkyl20 phosphinate salts.Type: GrantFiled: November 24, 1998Date of Patent: March 18, 2003Assignee: Clariant GmbHInventors: Norbert Weferling, Hans-Peter Schmitz, Günter Kolbe
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Patent number: 6420598Abstract: The present invention relates to a process for the preparation of alkylphosphonic acids, which comprises reacting phosphorous acid (H3PO3) with short-chain olefins, and to the use of the products prepared by this process.Type: GrantFiled: June 12, 2000Date of Patent: July 16, 2002Assignee: Clariant GmbHInventors: Norbert Weferling, Martin Sicken, Hans-Peter Schmitz
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Publication number: 20020082447Abstract: The invention relates to a process for preparing ethylenediphosphonic acids of the formula I, 1Type: ApplicationFiled: December 19, 2001Publication date: June 27, 2002Applicant: Clariant GmbHInventors: Martin Sicken, Hans-Peter Schmitz
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Publication number: 20020079480Abstract: The invention relates to a process for preparing ethanebis(methylphosphinic) acid which comprises reacting ethyne (acetylene) with methyl phophonous acid.Type: ApplicationFiled: December 19, 2001Publication date: June 27, 2002Inventors: Martin Sicken, Hans-Peter Schmitz
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Patent number: 6388125Abstract: The present invention relates to a process for the preparation of phosphinic acids from alkali metal phosphinates, which comprises reacting alkali metal phosphinates in a polar solvent with an inorganic mineral acid and then separating off the phosphinic acid formed.Type: GrantFiled: December 21, 1999Date of Patent: May 14, 2002Assignee: Clariant GmbHInventors: Hans-Peter Schmitz, Martin Sicken
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Patent number: 6359171Abstract: The invention relates to a process for the preparation of dialkylphosphinic acids and salts thereof, which comprises a) reacting elemental yellow phosphorus with alkylating agents in the presence of a base to give a mixture which comprises, as principal constituents, the (metal) salts of alkylphosphonous, phosphorous and hypophosphorous acids, b) esterifying the principal constituents of the mixture from a) to give an ester mixture, c) isolating the ester of the alkylphosphonous acid from the ester mixture, d) preparing the corresponding ester of the dialkylphosphinic acid from the ester of the alkylphosphonous acid by free-radical-initiated reaction with olefins, e) converting the ester of the dialkylphosphinic acid into the free acid or into the dialkylphosphinic acid salts of metals from groups IA, IIA, IIIA, IVA, VA, IIB, IVB, VIIB or VIIIB of the Periodic Table or of cerium.Type: GrantFiled: May 24, 2000Date of Patent: March 19, 2002Assignee: Clariant GmbHInventors: Norbert Weferling, Martin Sicken, Günter Kolbe, Hans-Peter Schmitz