Patents by Inventor Martin Trageser
Martin Trageser 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: 8198431Abstract: The invention is directed to an improved, reliably performable process for preparing triallyl isocyanurate (TAIC) by Cu2+-catalysed rearrangement of triallyl cyanurate (TAC) at at least 90° C. According to the invention, TAC and, if required, also a Cu2+ catalyst and solvent are fed continuously to a start reaction mixture after onset of the initially inhibited isomerization reaction, the isomerization is performed at from 90 to 160° C. and an amount of reaction mixture equivalent to the amount of reactant is drawn off continuously and sent to the workup. Preference is given to effecting the isomerization in TAIC as the reaction medium.Type: GrantFiled: June 14, 2007Date of Patent: June 12, 2012Assignee: Evonik Degussa GmbHInventors: Peter Werle, Hans-Peter Krimmer, Manfred Schmidt, Klaus Stadtmueller, Martin Trageser
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Patent number: 8114992Abstract: The present invention is directed towards a method for the production of 2,4,6-trimercapto-1,3,5-triazine (TMT-H3). In particular, the method of the subject matter relates to the operation of acidifying the salts of 2,4,6-trimercapto-1,3,5-triazine in aqueous solution and in a defined pH range.Type: GrantFiled: July 3, 2006Date of Patent: February 14, 2012Assignee: Evonik Degussa GmbHInventors: Peter Werle, Martin Trageser, Michael Beck
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Publication number: 20110263748Abstract: The invention relates to a process for producing crosslinked organic polymers by reacting a polymer with a crosslinking agent from the group of the substituted cyanurates and isocyanurates, and also to novel compounds from the said group.Type: ApplicationFiled: April 21, 2011Publication date: October 27, 2011Applicant: Evonik Degussa GmbHInventors: Stephanie SCHAUHOFF, Martin TRAGESER
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Patent number: 8022201Abstract: The present invention is directed to a process for preparing amides. In particular, the process is directed to a process performable on the industrial scale, in which a ketoxime can be converted to a cyclic or acyclic amide by means of a Beckmann rearrangement using 2,4,6-trichloro-1,3,5-triazine as a catalyst in a nonpolar organic solvent.Type: GrantFiled: April 3, 2007Date of Patent: September 20, 2011Assignee: Evonik Degussa GmbHInventors: Martin Roos, Stephanie Schauhoff, Martin Trageser, Hans-Peter Krimmer
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Publication number: 20090312545Abstract: The invention is directed to an improved, reliably performable process for preparing triallyl isocyanurate (TAIC) by Cu2+-catalysed rearrangement of triallyl cyanurate (TAC) at least 90° C. According to the invention, TAC and, if required, also a Cu2+ catalyst and solvent are fed continuously to a start reaction mixture after onset of the initially inhibited isomerization reaction, the isomerization is performed at from 90 to 160° C. and an amount of reaction mixture equivalent to the amount of reactant is drawn off continuously and sent to the workup. Preference is given to effecting the isomerization in TAIC as the reaction medium.Type: ApplicationFiled: June 14, 2007Publication date: December 17, 2009Applicant: EVONIK DEGUSSA GmbHInventors: Peter Werle, Hans-Peter Krimmer, Manfred Schmidt, Klaus Stadtmueller, Martin Trageser
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Publication number: 20090306367Abstract: The present invention is directed to a process for preparing amides. In particular, the process is directed to a process performable on the industrial scale, in which a ketoxime can be converted to a cyclic or acyclic amide by means of a Beckmann rearrangement using 2,4,6-trichloro-1,3,5-triazine as a catalyst in a nonpolar organic solvent.Type: ApplicationFiled: April 3, 2007Publication date: December 10, 2009Applicant: EVONIK DEGUSSA GMBHInventors: Martin Roos, Stephanie Schauhoff, Martin Trageser, Hans-Peter Krimmer
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Publication number: 20080293935Abstract: The present invention is directed towards a method for the production of 2,4,6-trimercapto-1,3,5-triazine (TMT-H3). In particular, the method of the subject matter relates to the operation of acidifying the salts of 2,4,6-trimercapto-1,3,5-triazine in aqueous solution and in a defined pH range.Type: ApplicationFiled: July 3, 2006Publication date: November 27, 2008Applicant: Evonik Degussa GmbHInventors: Peter Werle, Martin Trageser, Michael Beck
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Patent number: 6500466Abstract: Powdered mixtures of chlorhexidine base with selected sugar acids or lactones from the group gluconic acid or gluconolactone, lactobionic acid (I), D-galactono-&ggr;-lactone (II), L-mannono-&ggr;-lactone (III), D-(−)-gulono-&ggr;-lactone (IV), D-(+)-galacturonic acid (V) and &agr;-D-heptaglucono-&ggr;-lactone (VI). The formulations have extraordinary storage stability. New chlorhexidine salts with sugar acid anions based on (I) to (VI) and aqueous solutions of these are also described. The formulations, solutions and pure salts are used as disinfectants and to prepare disinfectants.Type: GrantFiled: December 13, 1999Date of Patent: December 31, 2002Assignee: Degussa AGInventors: Peter Werle, Friedhelm Merz, Judith N. Jørgensen, Martin Trageser
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Publication number: 20020018814Abstract: Powdered mixtures of chlorhexidine base with selected sugar acids or lactones from the group gluconic acid or gluconolactone, lactobionic acid (I), D-galactono-&ggr;-lactone (II), L-mannono-&ggr;-lactone (III), D-(−)-gulono-&ggr;-lactone (IV), D-(+)-galacturonic acid (V) and &agr;-D-heptaglucono-&ggr;-lactone (VI). The formulations have extraordinary storage stability. New chlorhexidine salts with sugar acid anions based on (I) to (VI) and aqueous solutions of these are also described. The formulations, solutions and pure salts are used as disinfectants and to prepare disinfectants.Type: ApplicationFiled: December 13, 1999Publication date: February 14, 2002Inventors: PETER WERLE, FRIEDHELM MERZ, JUDITH N. JORGENSEN, MARTIN TRAGESER
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Patent number: 6060571Abstract: Acrolein polymer from acrolein and one or more polyhydric alcohols, characterized by release of monomeric acrolein in aqueous systems and hence by a prolonged effect on microorganisms, is prepared by adding acrolein to a reaction medium containing catalyst in dissolved form, and not allowing the temperature of the reaction medium to rise about 50.degree. C. The acrolein polymer may be used in aqueous systems as a biocide.Type: GrantFiled: February 21, 1997Date of Patent: May 9, 2000Assignee: Degussa AktiengesellschaftInventors: Peter Werle, Hans-Peter Krimmer, Martin Trageser, Franz-Rudolf Kunz
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Patent number: 5917094Abstract: Acrolein-releasing emulsion homopolymers release acrolein in aqueous systems. They are produced by adding acrolein, at least 95% by weight pure, to a solution of an alkali hydroxide, with the temperature not exceeding 25.degree. C. during the addition, and then adjusting the pH to 5 to 7 by adding a mineral acid.Type: GrantFiled: December 16, 1997Date of Patent: June 29, 1999Assignee: Degussa-Huls AktiengesellschaftInventors: Peter Werle, Hans Peter Krimmer, Martin Trageser
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Patent number: 5723498Abstract: A composition which is capable of releasing acrolein and is easy to handle contains (i) an acetal of acrolein with a C.sub.1-6 alcohol with 1 to 4 hydroxyl groups and (ii) an acid soluble therein and chemically compatible with a pK.sub.s value of less than 4 and (iii) is anhydrous. A preferred composition contains 2-vinyl-1,3-dioxolane as acetal, anhydrous oxalic acid, fumaric acid or maleic acid or a mixture of mono- and di(C.sub.1 - to C.sub.3 -)alkyl phosphate as acid and, in addition, a non-ionic surfactant. The acrolein is released at the site of use upon contact with for example water for the purpose of combatting microbial, vegetable and animal pests.Type: GrantFiled: September 13, 1995Date of Patent: March 3, 1998Assignee: Degussa AktiengellschaftInventors: Peter Werle, Martin Trageser, Oswald Helmling, Harold Jakob
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Patent number: 5696052Abstract: The direct handling of acrolein for the purpose of combatting microbial, vegetable and animal pests in water and soil is problematic on account of the potential for danger of acrolein. According to the invention a composition which releases acrolein upon contact with water at the site of use and is easy to handle is used.The composition in accordance with the invention contains an acrolein acetal, preferably 2-vinyl-1,3-dioxolane, and a compound hydrolyzable to an acid with a pK.sub.s value of less than 4, especially one from the series of organic acid anhydrides, organic acid halides and inorganic halogen compounds forming hydrogen halide upon hydrolysis.Type: GrantFiled: June 7, 1995Date of Patent: December 9, 1997Assignee: Degussa AktiengesellschaftInventors: Peter Werle, Martin Trageser, Oswald Helmling, Harald Jakob
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Patent number: 5560833Abstract: Stretches of flowing water are doped with acrolein for the purpose of preventing excessive growth of plants and algae. In order to avoid transport of acrolein, acrolein is produced at the site where it is required by deacetalation of an acrolein acetal in the presence of an aqueous mineral acid. No electrical energy is necessary for this process. An acrolein acetal and an aqueous mineral acid solution are delivered from compression-proof storage tanks into a mixing chamber by the application of pressure from a pressure cylinder. The mixture is passed through a deacetalation reactor unit which includes a tubular reactor part and a container-shaped reactor part.Type: GrantFiled: July 27, 1994Date of Patent: October 1, 1996Assignee: Degussa AktiengesellschaftInventors: Peter Werle, Bernd Geissler, Martin Trageser
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Patent number: 5352841Abstract: Liquid acrolein, whose hazardous properties make handling difficult, is used to dose aqueous systems with acrolein in a biocidally effective concentration. Disclosed are agents which increase the ease and safety of acrolein handling and which are characterized by a content of 30 to 95% by weight acrolein and 5 to 70% by weight inorganic carrier materials. Silicas are the preferred carrier materials. The powdery or highly viscous mixture of substances will preferably exist in molded form and is additionally provided with a cladding that is impermeable to acrolein vapor. In dosing the aqueous systems, the agents are introduced directly in the water whereupon the acrolein is released.Type: GrantFiled: December 14, 1993Date of Patent: October 4, 1994Assignee: Degussa AktiengesellschaftInventors: Peter Werle, Werner Pahling, Martin Trageser
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Patent number: 5248818Abstract: Calcium formate is produced in aqueous phase by reaction of calcium hydroxide with formaldehyde in the presence of hydrogen peroxide or by reaction of calcium peroxide with formaldehyde. The molar ratio of CaO or Ca(OH).sub.2 to H.sub.2 CO to H.sub.2 O.sub.2 is 1 to 2 to 1-1.2 and the molar ratio of CaO.sub.2 to H.sub.2 CO is 1 to 2. Calcium formate is obtained in an almost substantially quantitative yield and in highly pure form. The process avoids the disadvantages of prior processes for the production of calcium formate from calcium hydroxide and formaldehyde.Type: GrantFiled: March 24, 1992Date of Patent: September 28, 1993Assignee: Degussa AktiengesellschaftInventors: Peter Werle, Martin Trageser, Ulrike Duderstadt
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Patent number: 5183944Abstract: Aqueous solutions can be doped in a simple, safe and economic manner with acrolein in biocidally effective concentration by converting acrolein acetals in aqueous phase in the presence of a strongly acidic deacetalation catalyst into acrolein, cleaving the alcohol component, constantly removing the formed acrolein from the decetalation mixture and transferring it by means of an inert gas stream or a liquid jet pump with the aqueous solution to be doped as jet fluid into the aqueous solution to be doped.Type: GrantFiled: November 26, 1991Date of Patent: February 2, 1993Assignee: Degussa AGInventors: Peter Werle, Martin Trageser, Hermann Piana