Patents by Inventor Corinna Krüger

Corinna Krüger 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).

  • Patent number: 11753577
    Abstract: This invention relates to a method for inhibiting the agglomeration of gas hydrates, comprising the injection of an anti-agglomerant comprising a N,N-dialkyl-ammoniumalkyl fatty acid amide represented by the formula (I) wherein R1 is an alkyl or alkenyl group having from 7 to 21 carbon atoms, R2 and R3 are each independently an alkyl group containing 1 to 10 carbon atoms, or together form an optionally substituted ring having 5 to 10 ring atoms, wherein the ring may carry up to 3 substituents, R4 is hydrogen or an alkyl group having 1 to 6 carbon atoms, R5 is hydrogen or an optionally substituted hydrocarbyl group having 1 to 22 carbon atoms and A is an alkylene group having two or three carbon atoms, into a fluid comprising gas, water and oil under conditions prone to the formation of gas hydrates, wherein the N,N-dialkyl-ammoniumalkyl fatty acid amide represented by formula (I) is produced by the aminolysis of an ester of a fatty acid and a C1- to C4-alcohol with an N,N-dialkylamino alkyl amine and s
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: September 12, 2023
    Assignee: Clariant International Ltd.
    Inventors: Scot Bodnar, Dan Smith, Felix Hoevelmann, Corinna Krüger, Matthias Krull, Jonathan James Wylde, Lisa Greaney Tejada
  • Patent number: 11753576
    Abstract: This invention relates to a method for inhibiting the agglomeration of gas hydrates, comprising the injection of an anti-agglomerant comprising a N,N-dialkyl-ammoniumalkyl fatty acid amide represented by the formula (I) wherein R1 is an alkyl or alkenyl group having from 7 to 21 carbon atoms, R2 and R3 are each independently an alkyl group containing 1 to 10 carbon atoms, or together form an optionally substituted ring having 5 to 10 ring atoms, wherein the ring may carry up to 3 substituents, R4 is hydrogen or an alkyl group having 1 to 6 carbon atoms, R5 is hydrogen or an optionally substituted hydrocarbyl group having 1 to 17 carbon atoms and A is an alkylene group having two or three carbon atoms, into a fluid comprising gas, water and oil under conditions prone to the formation of gas hydrates, wherein the N,N-dialkyl-ammoniumalkyl fatty acid amide represented by the formula (I) is produced by the condensation reaction of a fatty acid with an N,N-dialkylamino alkyl amine and subsequent neutralization
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: September 12, 2023
    Assignee: Clariant International Ltd.
    Inventors: Scot Bodnar, Dan Smith, Felix Hoevelmann, Corinna Krüger, Matthias Krull, Jonathan James Wylde, Lisa Greaney Tejada
  • Publication number: 20200377783
    Abstract: This invention relates to a method for inhibiting the agglomeration of gas hydrates, comprising the injection of an anti-agglomerant comprising a N,N-dialkyl-ammoniumalkyl fatty acid amide represented by the formula (I) wherein R1 is an alkyl or alkenyl group having from 7 to 21 carbon atoms, R2 and R3 are each independently an alkyl group containing 1 to 10 carbon atoms, or together form an optionally substituted ring having 5 to 10 ring atoms, wherein the ring may carry up to 3 substituents, R4 is hydrogen or an alkyl group having 1 to 6 carbon atoms, R5 is hydrogen or an optionally substituted hydrocarbyl group having 1 to 17 carbon atoms and A is an alkylene group having two or three carbon atoms, into a fluid comprising gas, water and oil under conditions prone to the formation of gas hydrates, wherein the N,N-dialkyl-ammoniumalkyl fatty acid amide represented by the formula (I) is produced by the condensation reaction of a fatty acid with an N,N-dialkylamino alkyl amine and subsequent neutralization
    Type: Application
    Filed: May 28, 2019
    Publication date: December 3, 2020
    Applicant: Clariant International, Ltd.
    Inventors: Scot BODNAR, Dan Smith, Felix Hoevelmann, Corinna Krüger, Matthias Krull, Jonathan James Wylde, Lisa Greaney Tejada
  • Publication number: 20200377784
    Abstract: This invention relates to a method for inhibiting the agglomeration of gas hydrates, comprising the injection of an anti-agglomerant comprising a N,N-dialkyl-ammoniumalkyl fatty acid amide represented by the formula (I) wherein R1 is an alkyl or alkenyl group having from 7 to 21 carbon atoms, R2 and R3 are each independently an alkyl group containing 1 to 10 carbon atoms, or together form an optionally substituted ring having 5 to 10 ring atoms, wherein the ring may carry up to 3 substituents, R4 is hydrogen or an alkyl group having 1 to 6 carbon atoms, R5 is hydrogen or an optionally substituted hydrocarbyl group having 1 to 22 carbon atoms and A is an alkylene group having two or three carbon atoms, into a fluid comprising gas, water and oil under conditions prone to the formation of gas hydrates, wherein the N,N-dialkyl-ammoniumalkyl fatty acid amide represented by formula (I) is produced by the aminolysis of an ester of a fatty acid and a C1- to C4-alcohol with an N,N-dialkylamino alkyl amine and subs
    Type: Application
    Filed: May 28, 2019
    Publication date: December 3, 2020
    Applicant: Clariant International, Ltd.
    Inventors: Scot BODNAR, Dan Smith, Felix Hoevelmann, Corinna Krüger, Matthias Krull, Jonathan James Wylde, Lisa Greaney Tejada
  • Publication number: 20180291254
    Abstract: The present invention contains methods, of making a cashew nutshell liquid alkoxylate sulfate surfactant by alkoxylation of a natural alkylphenol using propylene oxide (PO) and/or ethylene oxide (EO) followed by a sulfation reaction. The cashew nutshell liquid alkoxylate sulfate surfactant of the present invention is made by a facile and cost effective method. The natural hydrophobe surfactant of the present invention find uses in EOR applications where it is used for solubilization and mobilization of oil optionally containing asphaltene, wax, naphtenate, and for environmental cleanup. Further, the unsulfated version of the natural hydrophobe cardanol alkoxylate surfactant of the present invention can be used as ultra-high molecular weight non-ionic surfactant. Another advantage is that the composition is a renewable based surfactant that is non-toxic and biodegradable.
    Type: Application
    Filed: October 7, 2016
    Publication date: October 11, 2018
    Applicant: Clariant International Ltd.
    Inventors: Dirk LEINWEBER, Anton KAISER, Jonathan WYLDE, Corinna KRUEGER, Hadi SHAMSI JAZEYI
  • Publication number: 20180282480
    Abstract: The present invention contains methods, of making a cashew nutshell liquid alkoxylate carboxylate surfactant by alkoxylation of a natural alkylphenol using propylene oxide (PO) and/or ethylene oxide (EO) followed by a carboxymethylation reaction. The cashew nutshell liquid alkoxylate sulfate surfactant of the present invention is made by a facile and cost effective method. The natural hydrophobe surfactant of the present invention find uses in EOR applications where it is used for solubilization and mobilization of oil optionally containing asphaltene, wax, naphthenate, and for environmental cleanup. Another advantage is that the composition is a renewable based surfactant that is non-toxic and biodegradable.
    Type: Application
    Filed: October 7, 2016
    Publication date: October 4, 2018
    Applicant: Clariant International Ltd.
    Inventors: Dirk LEINWEBER, Anton KAISER, Jonathan WYLDE, Corinna KRUEGER, Hadi SHAMSI JAZEYI