Patents by Inventor Sarah WERNER

Sarah WERNER 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).

  • Catalytic Process For Synthesizing N,N-Dimethyl Glucamine From N Methyl Glucamine
    Publication number: 20210114968
    Abstract: The invention relates to a process for synthesizing an aqueous N,N-dimethyl glucamine solution, characterized in that a formaldehyde solution is metered into an N-methyl glucamine solution in the presence of a metal catalyst at hydrogen pressure.
    Type: Application
    Filed: February 28, 2018
    Publication date: April 22, 2021
    Applicant: Clariant International Ltd.
    Inventors: Ertan AKGÜN, Martin LINK, Sarah WERNER, Klaus RAAB, Peter KLUG, Karl SCHEITZENEDER, Stefan KREUZPOINTNER
  • Catalytic process for preparing N,N-dimethylglucamine from N methylglucamine
    Patent number: 10766853
    Abstract: The invention relates to a method for preparing aqueous solutions of N,N-dimethylglucamine, characterized by first preparing an adduct of N-methylglucamine and formaldehyde in water at temperatures of between 15° C. and 40° C., and subsequently reacting said adduct to N,N-dimethylglucamine in the presence of a metal catalyst under hydrogen pressure at 20-68° C., followed by secondary hydrogenation at 70-120 bar and 70-110° C. once hydrogen absorption at 20-68° C. is completed.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: September 8, 2020
    Assignee: CLARIANT INTERNATIONAL LTD
    Inventors: Ertan Akgün, Martin Link, Sarah Werner, Klaus Raab, Peter Klug, Karl Scheitzeneder, Stefan Kreuzpointner
  • Catalytic Process For Preparing N,N-Dimethylglucamine From N Methylglucamine
    Publication number: 20200017435
    Abstract: The invention relates to a method for preparing aqueous solutions of N,N-dimethylglucamine, characterized by first preparing an adduct of N-methylglucamine and formaldehyde in water at temperatures of between 15° C. and 40° C., and subsequently reacting said adduct to N,N-dimethylglucamine in the presence of a metal catalyst under hydrogen pressure at 20-68° C., followed by secondary hydrogenation at 70-120 bar and 70-110° C. once hydrogen absorption at 20-68° C. is completed.
    Type: Application
    Filed: February 28, 2018
    Publication date: January 16, 2020
    Applicant: Clariant International Ltd.
    Inventors: Ertan AKGÜN, Martin LINK, Sarah WERNER, Klaus RAAB, Peter KLUG, Karl SCHEITZENEDER, Stefan KREUZPOINTNER
  • Continuous process for producing a surfactant in a tube reactor
    Patent number: 10112889
    Abstract: The invention relates to a continuous method for producing a tenside, containing a compound of the formula (1), wherein R2 is a fatty acid alkyl residue and R1 is a linear or branched C1 to C12 hydrocarbon residue, and x is in the range from 1 to 15 by conversion of fatty acid alkyl esters or fatty acid triglycerides having an N-n-alkylized polyhydroxy compound in the presence of an alkali catalyst or a catalyst selected from hydroxides or alcoholates of the 2nd and 4th secondary group of the periodic system at a temperature in the range from 40 to 300° C.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: October 30, 2018
    Assignee: CLARIANT INTERNATIONAL LTD.
    Inventors: Jörg Appel, Dennis Heitmann, Sarah Werner
  • Continuous Process For Producing A Surfactant In A Tube Reactor
    Publication number: 20170305838
    Abstract: The invention relates to a continuous method for producing a tenside, containing a compound of the formula (1), wherein R2 is a fatty acid alkyl residue and R1 is a linear or branched C1 to C12 hydrocarbon residue, and x is in the range from 1 to 15 by conversion of fatty acid alkyl esters or fatty acid triglycerides having an N-n-alkylized polyhydroxy compound in the presence of an alkali catalyst or a catalyst selected from hydroxides or alcoholates of the 2nd and 4th secondary group of the periodic system at a temperature in the range from 40 to 300° C.
    Type: Application
    Filed: November 9, 2015
    Publication date: October 26, 2017
    Applicant: Clariant International Ltd.
    Inventors: Jörg APPEL, Dennis HEITMANN, Sarah WERNER