Patents by Inventor Karin Van der Helm-Rademaker

Karin Van der Helm-Rademaker 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: 10005875
    Abstract: The present invention provides a co-polymer polyol which has an ABA block structure wherein each A block comprises a plurality of hydroxy-carboxylic acid residues and the B block comprises at least one dimer fatty residue selected from a dimer fatty diacid residue, a dimer fatty diol residue and a dimer fatty diamine residue, wherein the co-polymer polyol comprises at least two hydroxyl end groups. The invention also provides a method of making the co-polymer polyol and a polyurethane comprising the co-polymer polyol.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: June 26, 2018
    Assignee: CRODA INTERNATIONAL PLC
    Inventors: Angela Leonarda Maria Smits, Remco Benjamin Van Triet, Karin Van Der Helm-Rademaker, Wilhelmus Adrianus Jacobus Honcoop
  • Patent number: 9815939
    Abstract: The present invention relates to a polyurethane which is the reaction product of a polyisocyanate and polyester, wherein said polyester is formed from a dimer fatty acid, a C2 to C4 diol, and a C8 to C16 dicarboxylic acid or C6 to C12 lactide. The inventions also relates to a polyester for use in forming the polyurethane of the first aspect, said polyester formed from a dimer fatty acid, a C2 to C4 diol, and a C8 to C16 dicarboxylic acid or C6 to C12 lactide.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: November 14, 2017
    Assignee: CRODA INTERNATIONAL PLC
    Inventors: Angela Leonarda Maria Smits, Karin Van Der Helm-Rademaker
  • Publication number: 20160229946
    Abstract: The present invention provides a co-polymer polyol which has an ABA block structure wherein each A block comprises a plurality of hydroxy-carboxylic acid residues and the B block comprises at least one dimer fatty residue selected from a dimer fatty diacid residue, a dimer fatty diol residue and a dimer fatty diamine residue, wherein the co-polymer polyol comprises at least two hydroxyl end groups. The invention also provides a method of making the co-polymer polyol and a polyurethane comprising the co-polymer polyol.
    Type: Application
    Filed: September 10, 2014
    Publication date: August 11, 2016
    Applicant: CRODA INTERNATIONAL PLC
    Inventors: ANGELA LEONARDA MARIA SMITS, REMCO BENJAMIN VAN TRIET, KARIN VAN DER HELM-RADEMAKER, WILHELMUS ADRIANUS JACOBUS HONCOOP
  • Publication number: 20150210807
    Abstract: The present invention relates to a polyurethane which is the reaction product of a polyisocyanate and polyester, wherein said polyester is formed from a dimer fatty acid, a C2 to C4 diol, and a C8 to C16 dicarboxylic acid or C6 to C12 lactide. The inventions also relates to a polyester for use in forming the polyurethane of the first aspect, said polyester formed from a dimer fatty acid, a C2 to C4 diol, and a C8 to C16 dicarboxylic acid or C6 to C12 lactide.
    Type: Application
    Filed: August 15, 2013
    Publication date: July 30, 2015
    Applicant: CRODA INTERNATIONAL PLC
    Inventors: Angela Leonarda Maria Smits, Karin Van Der Helm-Rademaker
  • Patent number: 5246621
    Abstract: Novel bleach and oxidation catalysts, a method of bleaching substrates using these catalysts and bleaching (detergent) compositions containing the catalysts are reported.The catalysts are manganese complexes of formula:[L.sub.n Mn.sub.m X.sub.p ].sup.z Y.sub.qwherein Mn is manganese or iron or mixtures thereof, which can be in the II, III, IV or V oxidation state or mixtures thereof; n and m are independent integers from 1-4; X represents a co-ordination or bridging species; p is an integer from 0-12; Y is a counter-ion, the type of which is dependent upon the charge z of the complex which can be positive, zero or negative; q=z/[charge Y]; and L is a ligand being a macrocylic organic molecule.
    Type: Grant
    Filed: May 21, 1991
    Date of Patent: September 21, 1993
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Thomas L. F. Favre, Ronald Hage, Karin Van der Helm-Rademaker, Jean H. Koek, Rudolf J. Martens, Ton Swarthoff, Marten R. P. van Vliet
  • Patent number: 5244594
    Abstract: Novel bleach and oxidation catalysts, a method of bleaching substrates using these catalysts and bleaching (detergent) compositions containing the catalysts are reported.The catalysts are a manganese-based co-ordination complex of the general formula:[L.sub.n Mn.sub.m X.sub.p ].sup.z Y.sub.qwherein Mn is manganese in the IV-oxidation state; n and m are independent integers from 2-8; X represents a co-ordination or bridging species; p is an integer from 0-32; Y is a counter-ion, the type of which is dependent on the charge z of the complex which can be positive, zero or negative; q=z/[charge Y]; and L is a ligand which is an organic molecule containing a number of hetero-atoms selected from N, P, O, and S, which co-ordinates via all or some of its hetero-atoms and/or carbon atoms to the Mn.sup.(IV) -center(s), which latter are anti-ferromagnetically coupled.
    Type: Grant
    Filed: May 21, 1991
    Date of Patent: September 14, 1993
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Thomas L. F. Favre, Ronald Hage, Karin Van der Helm-Rademaker, Jean H. Koek, Rudolf J. Martens, Ton Swarthoff, Marten R. P. van Vliet