Patents by Inventor Wolfgang Klesse
Wolfgang Klesse 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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Publication number: 20210261707Abstract: A flow improver comprising a plurality of core-shell particles that can be formed by emulsion polymerization. The core of the core-shell particles can include a drag reducing polymer, while the shell of the particles can include repeat units of a hydrophobic compound and an amphiphilic compound. The flow improver can demonstrate increased pumping stability over conventionally prepared latex flow improvers.Type: ApplicationFiled: May 13, 2021Publication date: August 26, 2021Inventors: Wayne R. DREHER, JR., Kenneth W. SMITH, Stuart N. MILLIGAN, Timothy L. BURDEN, William F. HARRIS, Ray L. JOHNSTON, Wolfgang KLESSE, Gerold SCHMITT, John WEY
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Patent number: 11028210Abstract: A flow improver comprising a plurality of core-shell particles that can be formed by emulsion polymerization. The core of the core-shell particles can include a drag reducing polymer, while the shell of the particles can include repeat units of a hydrophobic compound and an amphiphilic compound. The flow improver can demonstrate increased pumping stability over conventionally prepared latex flow improvers.Type: GrantFiled: July 15, 2016Date of Patent: June 8, 2021Assignee: LIQUIDPOWER SPECIALTY PRODUCTS INC.Inventors: Wayne R. Dreher, Kenneth W. Smith, Stuart N. Milligan, Timothy L. Burden, William F. Harris, Ray L. Johnston, Wolfgang Klesse, Gerold Schmitt, John Wey
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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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Patent number: 9656941Abstract: The invention relates to a process for preparing methacrylic esters of hydroxyl-functional benzophenones and to their use. Methacrylated benzophenones (benzophenone (meth)acrylates) can be prepared in high purity by the process of the invention, in a simple way and in a high yield.Type: GrantFiled: September 29, 2014Date of Patent: May 23, 2017Assignee: Evonik Roehm GmbHInventors: Wolfgang Klesse, Joachim Knebel, Doris Saal
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Publication number: 20160326294Abstract: A flow improver comprising a plurality of core-shell particles that can be formed by emulsion polymerization. The core of the core-shell particles can include a drag reducing polymer, while the shell of the particles can include repeat units of a hydrophobic compound and an amphiphilic compound. The flow improver can demonstrate increased pumping stability over conventionally prepared latex flow improvers.Type: ApplicationFiled: July 15, 2016Publication date: November 10, 2016Inventors: Wayne R. Dreher, Kenneth W. Smith, Stuart N. Milligan, Timothy L. Burden, William F. Harris, Ray L. Johnston, Wolfgang Klesse, Gerold Schmitt, John Wey
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Publication number: 20160297738Abstract: The invention relates to a process for preparing methacrylic esters of hydroxyl-functional benzophenones and to their use. Methacrylated benzophenones (benzophenone (meth)acrylates) can be prepared in high purity by the process of the invention, in a simple way and in a high yield.Type: ApplicationFiled: September 29, 2014Publication date: October 13, 2016Applicant: EVONIK ROEHM GmbHInventors: Wolfgang KLESSE, Joachim KNEBEL, Doris SAAL
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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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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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Patent number: 8742163Abstract: The invention relates to a method for producing methacrylated benzophenones and to the uses thereof.Type: GrantFiled: November 19, 2009Date of Patent: June 3, 2014Assignee: EVONIK ROEHM GmbHInventors: Joachim Knebel, Wolfgang Klesse, Christine Maria Breiner, Gerold Schmitt
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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: 8669328Abstract: The invention describes a composition comprising, in the form of aqueous dispersion, A) for every 100 parts by weight of a, or of a plurality of, (meth)acrylate polymer(s); B) from 1-400 parts by weight of a, or of a plurality of, (meth)acrylate polymer(s), which contain(s) a compound of the formula (I) copolymerized, where the (meth)acrylate polymer(s) B) differ from the (meth)acrylate polymers specified in A), where these are obtainable by emulsion polymerization of a mixture comprising a) from 0.1 to 99.9 percent by weight of at least one compound of the formula (I), preferably of a benzophenone (meth)acrylate, in which the definitions of the moieties are those given in the description; and b) from 99.9 to 0.Type: GrantFiled: March 2, 2010Date of Patent: March 11, 2014Assignee: Evonik Roehm GmbHInventors: Christine Maria Breiner, Mario Gomez Andreu, Gerold Schmitt, Wolfgang Klesse
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Patent number: 8168736Abstract: The invention describes an emulsion polymer which can be obtained by polymerization of a mixture comprising a) from 5 to 99.9% by weight of one or more monomers having a solubility in water of <2% by weight at 20° C. and selected from the group consisting of monofunctional (meth)acrylate monomers, styrene and vinyl esters; b) from 0 to 70% by weight of one or more monomers which can be copolymerized with the monomers a); c) from 0 to 20% by weight of one or more doubly or multiply vinylically unsaturated compounds; d) from 0 to 20% by weight of one or more polar monomers having a solubility in water of >2% by weight at 20° C.; and e) 0.Type: GrantFiled: June 27, 2008Date of Patent: May 1, 2012Assignee: Evonik Röhm GmbHInventors: Gerold Schmitt, Wolfgang Klesse, Joachim Knebel
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Publication number: 20120016071Abstract: The present invention relates to a (meth)acrylate polymer for preparing a coating composition, where the (meth)acrylate polymer comprises 0.5% to 20% by weight of units derived from (meth)acrylic monomers which in the alkyl radical have at least one double bond and 8 to 40 carbon atoms, 0.1% to 60% by weight of units derived from hydroxyl-containing monomers which have up to 9 carbon atoms, 0.1% to 95% by weight of units derived from (meth)acrylates having 1 to 12 carbon atoms in the alkyl radical, and 0.1% to 60% by weight of units derived from styrene monomers, based in each case on the weight of the (meth)acrylate polymer, and the (meth)acrylate polymer has a weight-average molecular weight in the range from 2000 to 60 000 g/mol. The present invention further relates to a coating composition and to a method of producing a coating. The present invention describes, furthermore, a coated article comprising a coating obtainable by the method.Type: ApplicationFiled: March 3, 2010Publication date: January 19, 2012Applicant: Evonik Roehm GmbHInventors: Bardo Schmitt, Wolfgang Klesse, Martina Ebert, Thorben Schuetz, Mario Gomez Andreu
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Publication number: 20120010317Abstract: The invention relates to a (meth)acrylate polymer obtainable by polymerizing a mixture comprising a) 0.1% to 99.9% by weight of at least one (meth)acrylate of the general formula I in which the radicals R1-R6 and also m take on the definition indicated in the description; and b) 99.9% to 0.1% by weight of one or a plurality of ethylenically unsaturated monomers which are different from a) and which are copolymerizable with a), the components a) and b) together making up 100% by weight of the polymerizable constituents of the mixture, the MW of the polymer being situated in the range from greater than or equal to 1000 g/mol to less than or equal to 50 000 g/mol. The resulting polymers are preparable preferably by the route of suspension polymerization or bead polymerization and, preferably in solution in reactive diluent, serve as polymer-bonded photoinitiators or as an additive to UV-curable resins for a very wide variety of fields of application, particularly for printing inks.Type: ApplicationFiled: February 25, 2010Publication date: January 12, 2012Applicant: Evonik Roehm GmbHInventors: Gerold Schmitt, Reinhold Martin, Patrik Hartmann, Wolfgang Klesse, Joachim Knebel
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Publication number: 20110319514Abstract: The invention describes a composition comprising, in the form of aqueous dispersion, A) for every 100 parts by weight of a, or of a plurality of, (meth)acrylate polymer(s); B) from 1-400 parts by weight of a, or of a plurality of, (meth)acrylate polymer(s), which contain(s) a compound of the formula (I) copolymerized, where the (meth)acrylate polymer(s) B) differ from the (meth)acrylate polymers specified in A), where these are obtainable by emulsion polymerization of a mixture comprising a) from 0.1 to 99.9 percent by weight of at least one compound of the formula (I), preferably of a benzophenone (meth)acrylate, in which the definitions of the moieties are those given in the description; and b) from 99.9 to 0.Type: ApplicationFiled: March 2, 2010Publication date: December 29, 2011Applicant: EVONIK ROEHM GMBHInventors: Christine Maria Breiner, Mario Gomez Andreu, Gerold Schmitt, Wolfgang Klesse
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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: 8057698Abstract: The invention relates to mixtures of methacrylamide and aqueous N-methylolmethacrylamide solution.Type: GrantFiled: October 31, 2006Date of Patent: November 15, 2011Assignee: Evonik Röhm GmbHInventors: Wolfgang Klesse, Joachim Knebel
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Publication number: 20110196169Abstract: The invention relates to a method for producing methacrylated benzophenones and to the uses thereof.Type: ApplicationFiled: November 19, 2009Publication date: August 11, 2011Applicant: Evonik Roehm GmbHInventors: Joachim Knebel, Wolfgang Klesse, Christine Maria Breiner, Gerold Schmitt
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Publication number: 20110136975Abstract: The present invention relates to a monomer mixture comprising at least 30% by weight of one or more alkyl (meth)acrylates having 1 to 10 carbon atoms in the alkyl radical, whose alkyl radical contains no double bonds or heteroatoms, and 0.1% to 40% by weight of one or more (meth)acrylates having at least one aldehyde group in the alkyl radical. The present invention further relates to polymers obtainable from this monomer mixture and also to coating materials which comprise the stated polymers.Type: ApplicationFiled: August 31, 2009Publication date: June 9, 2011Applicant: EVONIK ROEHM GMBHInventors: Christine Maria Breiner, Gerold Schmitt, Wolfgang Klesse, Mario Gomez Andreu
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Publication number: 20100286331Abstract: Two-component or multicomponent system which cures by means of a redox initiator system and has a controllable pot life and comprises A) 0.8-69.94% by weight of an emulsion polymer which can be obtained by polymerization of a mixture; B) 30-99.14% by weight of one or more ethylenically unsaturated monomers; C) 0.05-10% by weight of peroxides; and if appropriate further constituents; characterized in that the component A) and the component C) are stored together and at least one constituent of the component B) is stored together from the components A) and C), with the separately stored constituent of the component B) being selected so that the ability of this constituent of the component B) to swell the polymer A) is sufficiently high for the polymer-fixed activator e) of the polymer A) to be able to react with the component C).Type: ApplicationFiled: June 27, 2008Publication date: November 11, 2010Applicant: Evonik Roehm GmbHInventors: Gerold Schmitt, Wolfgang Klesse, Joachim Knebel