Patents by Inventor Paul De Kok

Paul De Kok 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: 11332638
    Abstract: Aqueous coating compositions include dispersed polyurethane-vinyl polymer hybrid particles obtained by free-radical polymerization of at least one vinyl monomer in the presence of a polyurethane. The polyurethane and the vinyl polymer in the hybrid particles are present in a weight ratio of polyurethane to vinyl polymer ranging from 1:1 to 20:1, and the polyurethane is the reaction product of at least the following components: (a) from 5 to 40 wt. % of at least one organic difunctional isocyanate, (b) from 0.5 to 4 wt. % of an isocyanate-reactive compound containing ionic or potentially ionic water-dispersing groups having a molecular weight of from 100 to 500 g/mol, (c) from 40 to 80 wt. % of at least one diol having a molecular weight from 500 to 5000, (d) from 0 to 10 wt. % of at least one active-hydrogen chain extending compound with a functionality of at least 2 other than water, (e) from 0 to 10 wt. % of at least one diol having a molecular weight below 500 g/mol.
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: May 17, 2022
    Assignee: COVESTRO (NETHERLANDS) B.V.
    Inventors: Roel Johannes Marinus Swaans, Ronald Tennebroek, Gerardus Cornelis Overbeek, Paul de Kok
  • Publication number: 20210087427
    Abstract: Aqueous coating compositions include dispersed polyurethane-vinyl polymer hybrid particles obtained by free-radical polymerization of at least one vinyl monomer in the presence of a polyurethane. The polyurethane and the vinyl polymer in the hybrid particles are present in a weight ratio of polyurethane to vinyl polymer ranging from 1:1 to 20:1, and the polyurethane is the reaction product of at least the following components: (a) from 5 to 40 wt. % of at least one organic difunctional isocyanate, (b) from 0.5 to 4 wt. % of an isocyanate-reactive compound containing ionic or potentially ionic water-dispersing groups having a molecular weight of from 100 to 500 g/mol, (c) from 40 to 80 wt. % of at least one diol having a molecular weight from 500 to 5000, (d) from 0 to 10 wt. % of at least one active-hydrogen chain extending compound with a functionality of at least 2 other than water, (e) from 0 to 10 wt. % of at least one diol having a molecular weight below 500 g/mol.
    Type: Application
    Filed: December 1, 2020
    Publication date: March 25, 2021
    Inventors: Roel Johannes Marinus SWAANS, Ronald TENNEBROEK, Gerardus Cornelis OVERBEEK, Paul de KOK
  • Patent number: 10883015
    Abstract: Aqueous coating compositions include dispersed polyurethane-vinyl polymer hybrid particles obtained by free-radical polymerization of at least one vinyl monomer in the presence of a polyurethane. The polyurethane and the vinyl polymer in the hybrid particles are present in a weight ratio of polyurethane to vinyl polymer ranging from 1:1 to 20:1, and the polyurethane is the reaction product of at least the following components: (a) from 5 to 40 wt. % of at least one organic difunctional isocyanate, (b) from 0.5 to 4 wt. % of an isocyanate-reactive compound containing ionic or potentially ionic water-dispersing groups having a molecular weight of from 100 to 500 g/mol, (c) from 40 to 80 wt. % of at least one diol having a molecular weight from 500 to 5000, (d) from 0 to 10 wt. % of at least one active-hydrogen chain extending compound with a functionality of at least 2 other than water, (e) from 0 to 10 wt. % of at least one diol having a molecular weight below 500 g/mol.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: January 5, 2021
    Assignee: DSM IP ASSETS B.V.
    Inventors: Roel Johannes Marinus Swaans, Ronald Tennebroek, Gerardus Cornelis Overbeek, Paul de Kok
  • Publication number: 20190367772
    Abstract: The present invention relates to an aqueous coating composition comprising dispersed polymer particles, wherein (i) the dispersed polymer particles are polyurethane-vinyl polymer hybrid particles obtained by free-radical polymerization of at least one vinyl monomer in the presence of a polyurethane, (ii) the polyurethane and the vinyl polymer in the hybrid particles are present in a weight ratio of polyurethane to vinyl polymer ranging from 1:1 to 20:1, (iii) the polyurethane is the reaction product of at least the following components: (a) from 5 to 40 wt. % of at least one organic difunctional isocyanate, (b) from 0.5 to 4 wt. % of an isocyanate-reactive compound containing ionic or potentially ionic water-dispersing groups having a molecular weight of from 100 to 500 g/mol, (c) from 40 to 80 wt. % of at least one diol having a molecular weight from 500 to 5000, (d) from 0 to 10 wt.
    Type: Application
    Filed: August 15, 2019
    Publication date: December 5, 2019
    Inventors: Roel Johannes Marinus SWAANS, Ronald TENNEBROEK, Gerardus Cornelis OVERBEEK, Paul de KOK
  • Patent number: 10428237
    Abstract: The present invention relates to an aqueous coating composition comprising dispersed polymer particles, wherein (i) the dispersed polymer particles are polyurethane-vinyl polymer hybrid particles obtained by free-radical polymerization of at least one vinyl monomer in the presence of a polyurethane, (ii) the polyurethane and the vinyl polymer in the hybrid particles are present in a weight ratio of polyurethane to vinyl polymer ranging from 1:1 to 20:1, (iii) the polyurethane is the reaction product of at least the following components: (a) from 5 to 40 wt. % of at least one organic difunctional isocyanate, (b) from 0.5 to 4 wt. % of an isocyanate-reactive compound containing ionic or potentially ionic water-dispersing groups having a molecular weight of from 100 to 500 g/mol, (c) from 40 to 80 wt. % of at least one diol having a molecular weight from 500 to 5000, (d) from 0 to 10 wt.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: October 1, 2019
    Assignee: DSM IP ASSETS B.V.
    Inventors: Roel Johannes Marinus Swaans, Ronald Tennebroek, Gerardus Cornelis Overbeek, Paul De Kok
  • Publication number: 20170362461
    Abstract: The present invention relates to an aqueous coating composition comprising dispersed polymer particles, wherein (i) the dispersed polymer particles are polyurethane-vinyl polymer hybrid particles obtained by free-radical polymerization of at least one vinyl monomer in the presence of a polyurethane, (ii) the polyurethane and the vinyl polymer in the hybrid particles are present in a weight ratio of polyurethane to vinyl polymer ranging from 1:1 to 20:1, (iii) the polyurethane is the reaction product of at least the following components: (a) from 5 to 40 wt. % of at least one organic difunctional isocyanate, (b) from 0.5 to 4 wt. % of an isocyanate-reactive compound containing ionic or potentially ionic water-dispersing groups having a molecular weight of from 100 to 500 g/mol, (c) from 40 to 80 wt. % of at least one diol having a molecular weight from 500 to 5000, (d) from 0 to 10 wt.
    Type: Application
    Filed: December 22, 2015
    Publication date: December 21, 2017
    Inventors: Roel Johannes Marinus SWAANS, Ronald TENNEBROEK, Gerardus Cornelis OVERBEEK, Paul DE KOK
  • Patent number: 9631116
    Abstract: A radiation curable aqueous coating composition having a 85° gloss of ?60 upon drying comprising (A) 10 to 99 wt % of a polyurethane, (B) 1 to 90 wt % of a radiation curable component; (C) 0.1 to 10 wt % of an associative thickener; wherein at least 80 wt % of (A)+(B)+(C) has a particle size greater than 500 nm and wherein the C?C bond concentration of the composition is 0.2 to 5.0 mmol per g of (A)+(B)+(C).
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: April 25, 2017
    Assignee: DSM IP ASSETS B.V.
    Inventors: Ilse Van Casteren, Roland Tennebroek, Mario Cornelis Schoondermark, Paul De Kok
  • Publication number: 20150079406
    Abstract: There is described a process for preparing a Schiff base crosslinkable aqueous dispersion of a polyurethane A (PUD) the process comprising (a) reacting components (1) to (4) as present to form an acidic isocyanate terminated prepolymer that comprises anionic or potentially anionic functional groups thereon; where: (1) component one comprises 10 to 80% by weight of at least one polyisocyanate optionally containing at least one anionic or potentially anionic dispersing group; (2) optional component two comprises up to 15% by weight of at least one isocyanate-reactive polyol containing at least one anionic or potentially anionic dispersing group; (3) component three comprises 15 to 85% by weight of at least one isocyanate reactive polyol other than component two if present, and having a weight average molecular weight greater than or equal to 500 Daltons optionally containing at least one anionic or potentially anionic dispersing group; and (4) optional component four comprises up to 20% by weight of at least on
    Type: Application
    Filed: April 10, 2013
    Publication date: March 19, 2015
    Inventors: Ronald Tennebroek, Roel Johannes Marinus Swaans, Paul De Kok
  • Publication number: 20140114010
    Abstract: A radiation curable aqueous coating composition having a 85° gloss of ?60 upon drying comprising (A) 10 to 99 wt % of a polyurethane, (B) 1 to 90 wt % of a radiation curable component; (C) 0.1 to 10 wt % of an associative thickener; wherein at least 80 wt % of (A)+(B)+(C) has a particle size greater than 500 nm and wherein the C?C bond concentration of the composition is 0.2 to 5.0 mmol per g of (A)+(B)+(C).
    Type: Application
    Filed: December 23, 2013
    Publication date: April 24, 2014
    Applicant: DSM IP ASSETS B.V.
    Inventors: Ilse VAN CASTEREN, Roland TENNEBROEK, Mario Cornelis SCHOONDERMARK, Paul DE KOK
  • Publication number: 20130184396
    Abstract: A radiation curable aqueous coating composition having a 85° gloss of ?60 upon drying comprising (A) 10 to 99 wt % of a polyurethane, (B) 1 to 90 wt % of a radiation curable component; (C) 0.1 to 10 wt % of an associative thickener; wherein at least 80 wt % of (A)+(B)+(C) has a particle size greater than 500 nm and wherein the C?C bond concentration of the composition is 0.2 to 5.0 mmol per g of (A)+(B)+(C).
    Type: Application
    Filed: March 7, 2013
    Publication date: July 18, 2013
    Applicant: DSM IP ASSETS B.V.
    Inventors: Ilse VAN CASTEREN, Roland TENNEBROEK, Mario Cornelis SCHOONDERMARK, Paul DE KOK
  • Publication number: 20120270990
    Abstract: A radiation curable aqueous coating composition having a 85° gloss of ?60 upon drying comprising (A) 10 to 99 wt % of a polyurethane, (B) 1 to 90 wt % of a radiation curable component; (C) 0.1 to 10 wt % of an associative thickener; wherein at least 80 wt % of (A)+(B)+(C) has a particle size greater than 500 nm and wherein the C?C bond concentration of the composition is 0.2 to 5.0 mmol per g of (A)+(B)+(C).
    Type: Application
    Filed: July 3, 2012
    Publication date: October 25, 2012
    Applicant: DSM IP Assets B.V.
    Inventors: Ilse VAN CASTEREN, Roland Tennebroek, Mario Cornelis Schoondermark, Paul De Kok
  • Publication number: 20100144915
    Abstract: A radiation curable aqueous coating composition having a 85° gloss of ?60 upon drying comprising (A) 10 to 99 wt % of a polyurethane, (B) 1 to 90 wt % of a radiation curable component; (C) 0.1 to 10 wt % of an associative thickener; wherein at least 80 wt % of (A)+(B)+(C) has a particle size greater than 500 nm and wherein the C?C bond concentration of the composition is 0.2 to 5.0 mmol per g of (A)+(B)+(C).
    Type: Application
    Filed: February 19, 2008
    Publication date: June 10, 2010
    Inventors: Ilse Van Casteren, Roland Tennebroek, Mario Cornelis Schoondermark, Paul De Kok