Patents by Inventor Guido Protzmann
Guido Protzmann 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: 9701846Abstract: A radiation-reflecting road marking, comprising: metal particles having a diameter of between 0.5-2.5 mm, wherein the metal particles are particles comprising aluminum, magnesium, zinc or an alloy thereof. Also, a method for producing the radiation-reflecting road marking, where the radiation-reflecting road marking is a cold plastic, by mixing components of a two-part system, if necessary, to form a mixture, applying the mixture to a road surface, and adding the metal particles and optionally glass beads during or directly after an application of the cold plastic to the road surface.Type: GrantFiled: November 6, 2013Date of Patent: July 11, 2017Assignee: EVONIK ROEHM GmbHInventors: Guido Protzmann, Joern Kiwitt, Dominik Kiefer, Guenter Schmitt, Marita Kaufmann, Michael Olapoju
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Patent number: 9688601Abstract: Process for preparing (meth)acrylates of the formula (I) CH2?C(R1)—CO—O—R2??(I) in which R1 is hydrogen or methyl and R2 is a saturated or unsaturated, linear or branched, aliphatic or cyclic alkyl radical having 6 to 22 carbon atoms, or a (C6-C14)-aryl-(C1-C8)-alkyl radical; by reacting a (meth)acrylate of the formula II CH2?C(R1)—CO—OR3??(II) with an alcohol of the formula (III) HO—R2??(III) in the presence of an amount of a suitable catalyst which catalyzes the reaction and of an amount of a phenolic polymerization inhibitor or a combination of two or more phenolic polymerization inhibitors which is sufficient to inhibit undesired polymerization; the reaction being undertaken with input or introduction into the reaction mixture resulting from the reaction of an amount of oxygen or of an oxygenous gas mixture sufficient to inhibit undesired polymerization, and the process is characterized in that the specific total oxygen input is less than or equal to 1.Type: GrantFiled: October 27, 2015Date of Patent: June 27, 2017Assignee: Evonik Roehm GmbHInventors: Joachim Knebel, Ralf Merbach, Guido Protzmann, Klaus Gottmann, John Hirsh, Gerold Schmitt, Dieter Tessmer, Wilhelm Karnbrock, Wolfgang Klesse, Volker Kerscher
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Publication number: 20160046556Abstract: Process for preparing (meth)acrylates of the formula (I) CH2?C(R1)—CO—O—R2 ??(I) in which R1 is hydrogen or methyl and R2 is a saturated or unsaturated, linear or branched, aliphatic or cyclic alkyl radical having 6 to 22 carbon atoms, or a (C6-C14)-aryl-(C1-C8)-alkyl radical; by reacting a (meth)acrylate of the formula II CH2?C(R1)—CO—OR3 ??(II) with an alcohol of the formula (III) HO—R2 ??(III) in the presence of an amount of a suitable catalyst which catalyses the reaction and of an amount of a phenolic polymerization inhibitor or a combination of two or more phenolic polymerization inhibitors which is sufficient to inhibit undesired polymerization; the reaction being undertaken with input or introduction into the reaction mixture resulting from the reaction of an amount of oxygen or of an oxygenous gas mixture sufficient to inhibit undesired polymerization, and the process is characterized in that the specific total oxygen input is less than or equal to 1.Type: ApplicationFiled: October 27, 2015Publication date: February 18, 2016Applicant: Evonik Roehm GmbHInventors: Joachim KNEBEL, Ralf MERBACH, Guido PROTZMANN, Klaus GOTTMANN, John HIRSH, Gerold SCHMITT, Dieter TESSMER, Wilhelm KARNBROCK, Wolfgang KLESSE, Volker KERSCHER
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Publication number: 20160017151Abstract: The present invention encompasses an innovative concept for the marking of trafficways, more particularly roads. The application qualities and lifetime of these new markings are comparable with those of the prior art. The markings also possess properties comparable with those of the prior art in respect of night visibility, back-in-service time, and surface quality. An additional contribution of the markings of the present invention, however, is that they can be used to support modern driver assistance systems and autonomous driving. With this in mind, the present invention relates more particularly to road markings which, building on established systems, are equipped with additional reflection capacity for electromagnetic radiation, more particular for microwaves and/or infrared radiation.Type: ApplicationFiled: March 13, 2014Publication date: January 21, 2016Applicant: EVONIK ROEHM GMBHInventors: Guido PROTZMANN, Jörn KIWITT, Dominik KIEFER, Günter SCHMITT, Marita KAUFMANN, Michael OLAPOJU
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Patent number: 9206270Abstract: Process for preparing (meth)acrylates of the formula (I) CH2?C(R1)—CO—O—R2??(I) in which R1 is hydrogen or methyl and R2 is a saturated or unsaturated, linear or branched, aliphatic or cyclic alkyl radical having 6 to 22 carbon atoms, or a (C6-C14)-aryl-(C1-C8)-alkyl radical; by reacting a (meth)acrylate of the formula II CH2?C(R1)—CO—OR3??(II) with an alcohol of the formula (III) HO—R2??(III) in the presence of an amount of a suitable catalyst which catalyzes the reaction and of an amount of a phenolic polymerization inhibitor or a combination of two or more phenolic polymerization inhibitors which is sufficient to inhibit undesired polymerization; the reaction being undertaken with input or introduction into the reaction mixture resulting from the reaction of an amount of oxygen or of an oxygenous gas mixture sufficient to inhibit undesired polymerization, and the process is characterized in that the specific total oxygen input is less than or equal to 1.Type: GrantFiled: September 29, 2008Date of Patent: December 8, 2015Assignee: Evonik Roehm GmbHInventors: Joachim Knebel, Ralf Merbach, Guido Protzmann, Klaus Gottmann, John Hirsh, Gerold Schmitt, Dieter Tessmer, Wilhelm Karnbrock, Wolfgang Klesse, Volker Kerscher
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Publication number: 20150247297Abstract: The present invention encompasses an innovative concept for the marking of trafficways, more particularly roads. The application qualities and lifetime of these new markings are comparable with those of the prior art. The markings also possess properties comparable with those of the prior art in respect of night visibility, back-in-service time, and surface quality. An additional contribution of the markings of the present invention, however, is that they can be used to support modern driver assistance systems and autonomous driving. With this in mind, the present invention relates more particularly to road markings which, building on established systems, are equipped with additional reflection capacity for electromagnetic radiation, more particular for microwaves and/or infrared radiation.Type: ApplicationFiled: November 6, 2013Publication date: September 3, 2015Applicant: EVONIK INDUSTRIES AGInventors: Guido Protzmann, Joern Kiwitt, Dominik Kiefer, Guenter Schmitt, Marita Kaufmann, Michael Olapoju
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Patent number: 8686181Abstract: The present invention relates to a process for preparing ethylene glycol dimethacrylate, which comprises transesterification of ethylene glycol with an ester of methacrylic acid in the presence of catalysts, wherein a combination comprising lithium amide (LiNH2) and lithium chloride (LiCl) is used as catalyst. The process of the invention makes it possible to prepare ethylene glycol dimethacrylate particularly inexpensively and in a very high purity.Type: GrantFiled: May 8, 2008Date of Patent: April 1, 2014Assignee: Evonik Roehm GmbHInventors: Joachim Knebel, Thorben Schuetz, Guido Protzmann, Harald Trauthwein, Guenther Lauster, Thomas Kehr, Gerhard Koelbl, Guenter Westhaeuser
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Patent number: 8674133Abstract: The invention relates to a process for continuously preparing N-alkyl(meth)acrylamides by reacting alkyl(meth)acrylates with high-boiling amines. A catalyst activation and specific workup technique achieve product qualities which have not been achieved to date. In addition, very high space-time yields and overall yields can be achieved.Type: GrantFiled: March 3, 2010Date of Patent: March 18, 2014Assignee: Evonik Röhm GmbHInventors: Bardo Schmitt, Wolfgang Klesse, Martina Ebert, Dirk Broell, Guido Protzmann, Joachim Knebel, Thomas Kehr, Hans-Gerhard Stadler, Gerhard Koelbl, Benedikt Laux
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Patent number: 8575388Abstract: The present invention relates to a method for producing methacrylic acid by reacting methacrylamide with water, wherein said reaction is performed continuously in a tube reactor and a pressure differential exists in the flow direction of the reaction mixture inside said tube reactor. Furthermore, the present invention discloses a facility for carrying out the method according to the invention.Type: GrantFiled: January 13, 2009Date of Patent: November 5, 2013Assignee: Evonik Roehm GmbHInventors: Udo Gropp, Stefanie Sohnemann, Guido Protzmann, Thomas Mertz
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Publication number: 20130172598Abstract: The present invention relates to a process for preparing ethylene glycol dimethacrylate, which comprises transesterification of ethylene glycol with an ester of methacrylic acid in the presence of catalysts, wherein a combination comprising lithium amide (LiNH2) and lithium chloride (LiCl) is used as catalyst. The process of the invention makes it possible to prepare ethylene glycol dimethacrylate particularly inexpensively and in a very high purity.Type: ApplicationFiled: May 8, 2008Publication date: July 4, 2013Applicant: Evonik Roehm GmbHInventors: Joachim Knebel, Thorben Schuetz, Guido Protzmann, Harald Trauthwein, Guenther Lauster, Thomas Kehr, Gerhard Koelbl, Guenter Westhaeuser
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Patent number: 8389762Abstract: The present invention relates to a process for purifying methacrylic acid, wherein the reaction mixture obtained by a reaction of methacrylamide with water is cooled by mixing with an aqueous medium and then passed into a phase separator. The present invention further describes a system for performing the process according to the invention.Type: GrantFiled: January 13, 2009Date of Patent: March 5, 2013Assignee: Evonik Röhm GmbHInventors: Udo Gropp, Stefanie Sohnemann, Guido Protzmann, Thomas Mertz
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Patent number: 8129563Abstract: The present invention relates to a process for preparing allyl methacrylate, comprising the reaction of allyl alcohol with an ester of methacrylic acid, wherein the reaction is catalyzed by zirconium acetylacetonate. The process according to the invention enables particularly favorable preparation of allyl methacrylate with a very high purity.Type: GrantFiled: May 8, 2008Date of Patent: March 6, 2012Assignee: Evonik Roehm GmbHInventors: Bardo Schmitt, Guido Protzmann, Thorben Schuetz, Harald Trauthwein, Reinhold Martin, Joachim Knebel, Ingo Sander, Klaus Gottmann, Thomas Kehr, Dieter Bathen, Christian Maul
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Publication number: 20120004460Abstract: The present invention relates to a method for producing methacrylic acid by reacting methacrylamide with water, wherein said reaction is performed continuously in a tube reactor and a pressure differential exists in the flow direction of the reaction mixture inside said tube reactor. Furthermore, the present invention discloses a facility for carrying out the method according to the invention.Type: ApplicationFiled: January 13, 2009Publication date: January 5, 2012Applicant: Evonik Roehm GmbHInventors: Udo Gropp, Stefanie Sohnemann, Guido Protzmann, Thomas Mertz
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Publication number: 20110313195Abstract: The invention relates to a process for continuously preparing N-alkyl(meth)acrylamides by reacting alkyl (meth)acrylates with high-boiling amines. A catalyst activation and specific workup technique achieve product qualities which have not been achieved to date. In addition, very high space-time yields and overall yields can be achieved.Type: ApplicationFiled: March 3, 2010Publication date: December 22, 2011Inventors: Bardo Schmitt, Wolfgang Klesse, Martina Ebert, Dirk Broell, Guido Protzmann, Joachim Knebel, Thomas Kehr, Hans-Gerhard Stadler, Gerhard Koelbl, Benedikt Laux
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Patent number: 8049030Abstract: The present invention relates to a process for preparing (meth)acrylates, which comprises the transesterification of an alcohol with a low-boiling ester of (meth)acrylic acid in the presence of catalysts, with the alcohol liberated from the low-boiling ester of (meth)acrylic acid being separated off by distillation, characterized in that the molar ratio of low-boiling ester of (meth)acrylic acid to starting alcohol present in the reaction mixture is increased during the reaction by addition of low-boiling ester of (meth)acrylic acid. The process of the invention makes a particularly inexpensive preparation of (meth)acrylates having a very high purity possible.Type: GrantFiled: May 8, 2008Date of Patent: November 1, 2011Assignee: Evonik Röhm GmbHInventors: Guido Protzmann, Harald Trauthwein, Joachim Knebel, Thorben Schuetz, Gerhard Koelbl, Thomas Kehr, Guenther Lauster
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Patent number: 8039664Abstract: The present invention relates to a process for preparing butanediol dimethacrylates, which comprises the transesterification of butanediol with an ester of methacrylic acid in the presence of catalysts, wherein a combination comprising at least one lithium compound and at least one calcium compound is used as catalyst, at least one of the compounds of lithium and/or of calcium is an oxide, a hydroxide, an alkoxide having from 1 to 4 carbon atoms or a carboxylate having from 1 to 4 carbon atoms and at least part of the reaction is carried out in the presence of an effective amount of water. The process of the invention makes a particularly inexpensive preparation of butanediol dimethacrylates having a very high purity possible.Type: GrantFiled: May 8, 2008Date of Patent: October 18, 2011Assignee: Evonik Roehm GmbHInventors: Joachim Knebel, Thorben Schuetz, Harald Trauthwein, Thomas Kehr, Guenther Lauster, Guido Protzmann, Gerhard Koelbl, Guenter Westhaeuser
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Publication number: 20100331572Abstract: The present invention relates to a method for producing methacrylic acid by reacting methacrylamide with water, wherein said reaction is performed continuously in a tube reactor and a pressure differential exists in the flow direction of the reaction mixture inside said tube reactor. Furthermore, the present invention discloses a facility for carrying out the method according to the invention.Type: ApplicationFiled: January 3, 2009Publication date: December 30, 2010Applicant: Evonik Roehm GmbHInventors: Udo Gropp, Stefanie Sohnemann, Guido Protzmann, Thomas Mertz
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Publication number: 20100314239Abstract: The present invention relates to a process for purifying methacrylic acid, wherein the reaction mixture obtained by a reaction of methacrylamide with water is cooled by mixing with an aqueous medium and then passed into a phase separator. The present invention further describes a system for performing the process according to the invention.Type: ApplicationFiled: January 13, 2009Publication date: December 16, 2010Applicant: EVONIK ROEHM GMBHInventors: Udo Gropp, Stefanie Sohnemann, Guido Protzmann, Thomas Mertz
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Publication number: 20100280205Abstract: Process for preparing (meth)acrylates of the formula (I) CH2?C(R1)—CO—O—R2 ??(I) in which R1 is hydrogen or methyl and R2 is a saturated or unsaturated, linear or branched, aliphatic or cyclic alkyl radical having 6 to 22 carbon atoms, or a (C6-C14)-aryl-(C1-C8)-alkyl radical; by reacting a (meth)acrylate of the formula II CH2?C(R1)—CO—OR3 ??(II) with an alcohol of the formula (III) HO—R2 ??(III) in the presence of an amount of a suitable catalyst which catalyses the reaction and of an amount of a phenolic polymerization inhibitor or a combination of two or more phenolic polymerization inhibitors which is sufficient to inhibit undesired polymerization; the reaction being undertaken with input or introduction into the reaction mixture resulting from the reaction of an amount of oxygen or of an oxygenous gas mixture sufficient to inhibit undesired polymerization, and the process is characterized in that the specific total oxygen input is less than or equal to 1.Type: ApplicationFiled: September 29, 2008Publication date: November 4, 2010Applicant: Evonik Roehm GmbHInventors: Joachim Knebel, Ralf Merbach, Guido Protzmann, Klaus Gottmann, John Hirsh, Gerold Schmitt, Dieter Tessmer, Wilhelm Karnbrock, Wolfgang Klesse, Volker Kerscher
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Publication number: 20100204509Abstract: The present invention relates to a process for preparing (meth)acrylates, which comprises the transesterification of an alcohol with a low-boiling ester of (meth)acrylic acid in the presence of catalysts, with the alcohol liberated from the low-boiling ester of (meth)acrylic acid being separated off by distillation, characterized in that the molar ratio of low-boiling ester of (meth)acrylic acid to starting alcohol present in the reaction mixture is increased during the reaction by addition of low-boiling ester of (meth)acrylic acid. The process of the invention makes a particularly inexpensive preparation of (meth)acrylates having a very high purity possible.Type: ApplicationFiled: May 8, 2008Publication date: August 12, 2010Applicant: EVONIK ROEHM GMBHInventors: Guido Protzmann, Harald Trauthwein, Joachim Knebel, Thorben Schuetz, Gerhard Koelbl, Thomas Kehr, Guenther Lauster