Patents by Inventor Jochen Kirchhoff

Jochen Kirchhoff 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).

  • Publication number: 20080251758
    Abstract: The invention relates to triazine compounds comprising both amino- and carboxyl-containing substituents and also to a process for preparing them.
    Type: Application
    Filed: October 13, 2006
    Publication date: October 16, 2008
    Applicant: Evonik Degussa Gmbh
    Inventors: Jochen Kirchhoff, Peter Werle, Guenter Kreilkamp, Edeltraud Kruppa
  • Patent number: 6887939
    Abstract: The present invention relates to a stabilizing agent for polymers or copolymers which is a copolymer of ethylene or propylene (A) and a vinyl compound (B) having the formula: wherein X is O, NH or NR5; R1, R2 and R3 are each independently H, C1-C8 alkyl, C1-C8 substituted aryl; R4 is H, C1-C8 alkyl, C6-C12 cycloalkyl, C1-C10 acyl, C1-C10 acyloxy or C1-C8 alkyl ether; R5 is C1-C8 alkyl and wherein the copolymer has at least 1 mol % (B) and has an MFR2 of 1-1000 g/10 min.
    Type: Grant
    Filed: January 3, 2003
    Date of Patent: May 3, 2005
    Assignees: Degussa AG, Borealis A/S
    Inventors: Udo Jegelka, Jochen Kirchhoff, Thomas Hjertberg, Bill Gustafsson, Johan Linner, Annika Smedberg
  • Patent number: 6852893
    Abstract: The invention relates to a method for oxidizing substrates such as hydrocarbons, waxes or soot. The method involves the use of a compound of formula (I) in which: R1 and R2 represent H, an aliphatic or aromatic alkoxy radical, carboxyl radical, alkoxycarbonyl radical or hydrocarbon radical, each having 1 to 20 hydrocarbon atoms, SO3H, NH2, OH, F, Cl, Br, I and/or NO2, whereby R1 and R2 designate identical or different radicals or R1 and R2 can be linked to one another via a covalent bonding; Q1 and Q2 represent C, CH, N, CR5, each being the same or different; X and Z represent C, S, CH2, each being the same or different; Y represents O and OH; k=0, 1, 2; l=0, 1, 2; m=1 to 3, and; R5 represents one of the meanings of R1. Said compound is used as a catalyst in the presence of a radical initiator, whereby the molar ratio of the catalyst to the hydrocarbon is less than 10 mol %. Peroxy compounds or azo compounds can be used as the radical initiator. Preferred substrates are aliphatic or aromatic hydrocarbons.
    Type: Grant
    Filed: March 22, 2001
    Date of Patent: February 8, 2005
    Assignee: Creavis Gesellschaft fuer Technologie and Innovation mbH
    Inventors: Adolf Kühnle, Mark Duda, Carsten Jost, Guido Fries, Jochen Kirchhoff, Thomas Schiffer, Roger Arthur Sheldon, Sasidharan Manickam, Isabella W. C. E. Arends
  • Patent number: 6825385
    Abstract: Orthocarbonates are prepared by a process, comprising: reacting trichloroacetonitrile with an alkali metal salt or alkaline earth metal salt of an alcohol of the formula: R—OH  (II) wherein R is an unsubstituted or substituted, saturated aliphatic or cycloaliphatic hydrocarbon radical in which the carbon atom of group R, linked to the oxygen atom of the alcohol, has at least one hydrogen atom, reacting the product obtained in water with an oxidant, extracting the organic-aqueous phase of the material obtained after oxidation, and distilling the extracted material obtained and obtaining orthocarbonate product of the formula: C(OR)4  (I) wherein each R group is as defined above.
    Type: Grant
    Filed: November 6, 2001
    Date of Patent: November 30, 2004
    Assignee: Degussa AG
    Inventors: Guido Fries, Jochen Kirchhoff
  • Publication number: 20030176733
    Abstract: The invention relates to a method for oxidizing substrates such as hydrocarbons, waxes or soot. The method involves the use of a compound of formula (I) in which: R1 and R2 represent H, an aliphatic or aromatic alkoxy radical, carboxyl radical, alkoxycarbonyl radical or hydrocarbon radical, each having 1 to 20 hydrocarbon atoms, SO3H, NH2, OH, F, Cl, Br, I and/or NO2, whereby R1 and R2 designate identical or different radicals or R1 and R2 can be linked to one another via a covalent bonding; Q1 and Q2 represent C, CH, N, CR5, each being the same or different; X and Z represent C, S, CH2, each being the same or different; Y represents O and OH; k=0, 1, 2; l=0, 1, 2; m=1 to 3, and; R5 represents one of the meanings of R1. Said compound is used as a catalyst in the presence of a radical initiator, whereby the molar ratio of the catalyst to the hydrocarbon is less than 10 mol %. Peroxy compounds or azo compounds can be used as the radical initiator.
    Type: Application
    Filed: January 15, 2003
    Publication date: September 18, 2003
    Inventors: Adolf Knhle, Mark Duda, Carsten Jost, Guido Fries, Jochen Kirchhoff, Thomas Schiffer
  • Publication number: 20030125428
    Abstract: The present invention relates to a stabilizing agent for polymers or copolymers which is a copolymer of ethylene or propylene (A) and a vinyl compound (B) having the formula: 1
    Type: Application
    Filed: January 3, 2003
    Publication date: July 3, 2003
    Applicant: DEGUSSA AG
    Inventors: Udo Jegelka, Jochen Kirchhoff, Thomas Hjertberg, Bill Gustafsson, Johan Linner, Annika Smedberg
  • Publication number: 20020061984
    Abstract: Orthocarbonates are prepared by a process, comprising:
    Type: Application
    Filed: November 6, 2001
    Publication date: May 23, 2002
    Applicant: DEGUSSA AG
    Inventors: Guido Fries, Jochen Kirchhoff