Patents by Inventor Dessy Liminto

Dessy Liminto 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).

  • Metathesis of olefins using ruthenium based catalytic complexes
    Patent number: 9816051
    Abstract: A self-metathesis process for the production of unsaturated dicarboxylic fatty diacids and/or unsaturated dicarboxylic fatty diesters, wherein unsaturated carboxylic fatty acids and/or esters of unsaturated carboxylic fatty acids are reacted in the presence of at least one defined ruthenium based catalyst compound. A catalyst enhancer compound selected from a sacrificial catalyst or a non-catalyst enhancer may also be used. The process exhibits improved reaction times and/or the catalyst can be used at very low concentrations.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: November 14, 2017
    Assignee: Croda International PLC
    Inventors: Bastiaan Wels, Hans Ridderikhoff, Tanja Van Bergen-Brenkman, Dessy Liminto
  • Metathesis process
    Patent number: 9604903
    Abstract: A process of metathesizing a feedstock in the presence of a metathesis catalyst and at least one catalyst enhancer. The catalyst enhancer can be selected from a sacrificial catalyst or a non-catalyst enhancer. The process exhibits improved reaction times and/or the metathesis catalyst can be used at very low concentrations.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: March 28, 2017
    Assignee: CRODA INTERNATIONAL PLC
    Inventors: Bastiaan Wels, Hans Ridderikhoff, Tanja Van Bergen-Brenkman, Dessy Liminto
  • METATHESIS PROCESS
    Publication number: 20150045568
    Abstract: A process of metathesising a feedstock in the presence of a metathesis catalyst and at least one catalyst enhancer. The catalyst enhancer can be selected from a sacrificial catalyst or a non-catalyst enhancer. The process exhibits improved reaction times and/or the metathesis catalyst can be used at very low concentrations.
    Type: Application
    Filed: March 18, 2013
    Publication date: February 12, 2015
    Applicant: CRODA INTERNATIONAL PLC
    Inventors: Bastiaan Wels, Hans Ridderikhoff, Tanja Van Bergen-Brenkman, Dessy Liminto
  • METATHESIS OF OLEFINS USING RUTHENIUM BASED CATALYTIC COMPLEXES
    Publication number: 20150018574
    Abstract: A self-metathesis process for the production of unsaturated dicarboxylic fatty diacids and/or unsaturated dicarboxylic fatty diesters, wherein unsaturated carboxylic fatty acids and/or esters of unsaturated carboxylic fatty acids are reacted in the presence of at least one defined ruthenium based catalyst compound. A catalyst enhancer compound selected from a sacrificial catalyst or a non-catalyst enhancer may also be used. The process exhibits improved reaction times and/or the catalyst can be used at very low concentrations.
    Type: Application
    Filed: March 18, 2013
    Publication date: January 15, 2015
    Applicant: CRODA INTERNATIONAL PLC
    Inventors: Bastiaan Wels, Hans Ridderikhoff, Tanja Van Bergen-Brenkman, Dessy Liminto