Patents by Inventor Wilhelmina Westerhof

Wilhelmina Westerhof 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: 11060006
    Abstract: The present invention pertains to a method for manufacturing a laminated textile product comprising providing a first intermediate product comprising a primary backing having a front surface and a back surface, and yarns stitched into the primary backing, the yarns extending from the front surface of the backing material, feeding the intermediate product along a body having a heated surface, the back surface being pressed against the said heated surface, to at least partly melt the yarns present in the intermediate product to bond the yarns to the backing, wherein the part of the back surface that is pressed against the heated surface has a relative speed with respect to the heated surface, so as to provide a second intermediate product having a calendered back surface, providing a dimensionally stable carrier sheet or secondary backing, and connecting the second intermediate product to the carrier sheet by providing a hot melt adhesive between the calendered surface and the sheet, and pressing the sheet to t
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: July 13, 2021
    Assignee: DSM IP ASSETS B.V.
    Inventors: Michel Poul Tichelaar, Cornelis Eme Koning, Jan Henderikus Udding, Wilhelmina Westerhof, Chris Reutelingsperger, Adriaan Hofland
  • Publication number: 20190375968
    Abstract: The present invention pertains to a method for manufacturing a laminated textile product comprising providing a first intermediate product comprising a primary backing having a front surface and a back surface, and yarns stitched into the primary backing, the yarns extending from the front surface of the backing material, feeding the intermediate product along a body having a heated surface, the back surface being pressed against the said heated surface, to at least partly melt the yarns present in the intermediate product to bond the yarns to the backing, wherein the part of the back surface that is pressed against the heated surface has a relative speed with respect to the heated surface, so as to provide a second intermediate product having a calendered back surface, providing a dimensionally stable carrier sheet or secondary backing, and connecting the second intermediate product to the carrier sheet by providing a hot melt adhesive between the calendered surface and the sheet, and pressing the sheet to t
    Type: Application
    Filed: August 16, 2019
    Publication date: December 12, 2019
    Inventors: Michel Poul TICHELAAR, Cornelis Eme KONING, Jan Henderikus UDDING, Wilhelmina WESTERHOF, Chris REUTELINGSPERGER, Adriaan HOFLAND
  • Patent number: 10428250
    Abstract: The present invention pertains to a method for manufacturing a laminated textile product comprising providing a first intermediate product comprising a primary backing having a front surface and a back surface, and yarns stitched into the primary backing, the yarns extending from the front surface of the backing material, feeding the intermediate product along a body having a heated surface, the back surface being pressed against the said heated surface, to at least partly melt the yarns present in the intermediate product to bond the yarns to the backing, wherein the part of the back surface that is pressed against the heated surface has a relative speed with respect to the heated surface, so as to provide a second intermediate product having a calendered back surface, providing a dimensionally stable carrier sheet or secondary backing, and connecting the second intermediate product to the carrier sheet by providing a hot melt adhesive between the calendered surface and the sheet, and pressing the sheet to t
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: October 1, 2019
    Assignee: DSM IP ASSETS B.V
    Inventors: Michel Poul Tichelaar, Cornelis Eme Koning, Jan Henderikus Udding, Wilhelmina Westerhof, Chris Reutelingsperger, Adriaan Hofland
  • Publication number: 20170152417
    Abstract: The present invention pertains to a method for manufacturing a laminated textile product comprising providing a first intermediate product comprising a primary backing having a front surface and a back surface, and yarns stitched into the primary backing, the yarns extending from the front surface of the backing material, feeding the intermediate product along a body having a heated surface, the back surface being pressed against the said heated surface, to at least partly melt the yarns present in the intermediate product to bond the yarns to the backing, wherein the part of the back surface that is pressed against the heated surface has a relative speed with respect to the heated surface, so as to provide a second intermediate product having a calendered back surface, providing a dimensionally stable carrier sheet or secondary backing, and connecting the second intermediate product to the carrier sheet by providing a hot melt adhesive between the calendered surface and the sheet, and pressing the sheet to t
    Type: Application
    Filed: February 13, 2017
    Publication date: June 1, 2017
    Inventors: Michel Poul TICHELAAR, Cornelis Eme KONING, Jan Henderikus UDDING, Wilhelmina WESTERHOF, Chris REUTELINGSPERGER
  • Publication number: 20160108578
    Abstract: The present invention pertains to a method for manufacturing a laminated textile product comprising providing a first intermediate product comprising a primary backing having a front surface and a back surface, and yarns stitched into the primary backing, the yarns extending from the front surface of the backing material, feeding the intermediate product along a body having a heated surface, the back surface being pressed against the said heated surface, to at least partly melt the yarns present in the intermediate product to bond the yarns to the backing, wherein the part of the back surface that is pressed against the heated surface has a relative speed with respect to the heated surface, so as to provide a second intermediate product having a calendered back surface, providing a dimensionally stable carrier sheet or secondary backing, and connecting the second intermediate product to the carrier sheet by providing a hot melt adhesive between the calendered surface and the sheet, and pressing the sheet to t
    Type: Application
    Filed: June 10, 2014
    Publication date: April 21, 2016
    Inventors: Michel Poul TICHELAAR, Cornelis Eme KONING, Jan Henderikus UDDING, Wilhelmina WESTERHOF, Chris REUTELINGSPERGER
  • Publication number: 20160108573
    Abstract: The present invention discloses a method for manufacturing an optionally laminated textile product, the method comprising the steps of: a) providing a first sheet with yarns fastened thereto where the first sheet has a first surface and a second surface and the yarns extend from the first surface of the first sheet, b) heating the second surface of the first sheet thereby at least partly melting the yarns fastened to the first sheet to bond the yarns to the first sheet; c) exposing the second surface of the first sheet to pressure; d) optionally imparting a mechanical force on the molten fraction of the yarns in a direction parallel to the surface of the first sheet; e) applying hot melt adhesive to the second surface of the first sheet; and f)optionally applying a dimensionally stable second sheet to the second surface of the first sheet; with the proviso that where the optional step (f) is absent then step (d) is not optional.
    Type: Application
    Filed: June 10, 2014
    Publication date: April 21, 2016
    Inventors: Michel Poul TICHELAAR, Cornelis Eme KONING, Jan Henderikus UDDING, Wilhelmina WESTERHOF, Chris REUTELINGSPERGER
  • Patent number: 5739215
    Abstract: The invention relates to the use of a hydroxyl functional polyester having a glass transition temperature of at least 40.degree. C., a hydroxylnumber between 5 and 150 mg KOH/gram resin, a molecular weight (Mn) between 800 and 10.000 and a molecular weight (Mw) between 8000 and 100.000 in the preparation of coatings for the interior of can ends. The polyester has to be crosslinked with for example an amino resin or an epoxy resins.
    Type: Grant
    Filed: August 26, 1996
    Date of Patent: April 14, 1998
    Assignee: DSM N.V.
    Inventors: Wilhelmina Westerhof, Dirk J. Kolk, Wilhelmus J. P. S. M. van Riggelen
  • Patent number: 5376460
    Abstract: The invention relates to polyesters for use in outdoor-durable coating systems such as, for instance, coil coating systems. The polyester according to the invention is based on at least 50 moles % 1,4-cyclohexanedicarboxylic acid and a hexahydrophathalic acid (anhydride) as acid components. Up to a maximum of 50 moles % the polyester may be based also on acid components such as, for instance, isophthalic acid, terephthalic acid, adipic acid, sebacic acid, decanedicarboxylic acid and/or dimerized fatty acids or acid anhydrides such as, for instance, phthalic anhydride and succinic anhydride.
    Type: Grant
    Filed: March 23, 1994
    Date of Patent: December 27, 1994
    Assignee: DSM N.V.
    Inventors: Gerard Hardeman, Wilhelmina Westerhof, Johannes W. Besamusca
  • Patent number: 5368945
    Abstract: The invention relates to a coating composition based on a polyester resin, an amino resin and an epoxy resin.The polyester resin is a carboxyl-functional polyester with a molecular weight of between 12000 and 25000.
    Type: Grant
    Filed: January 12, 1993
    Date of Patent: November 29, 1994
    Assignee: Stamicarbon B.V.
    Inventors: Gerard Hardeman, Wilhelmina Westerhof, Anthonie J. Plak, Anneke Beens-Onstenk
  • Patent number: 4343932
    Abstract: The invention provides unsaturated polyester compositions which can be cured to form flexible objects, which compositions comprise terminal 1,2-alkene dicarboxylic acid in an amount of 1-25, preferably 3-15 mol-percent, calculated on the total amount of dicarboxylic acid, and 1-8, preferably 2.5-6 mol-percent of the dicarboxylic acids in the chain of the polyester consists of trans-1,2-alkene dicarboxylic acid.
    Type: Grant
    Filed: December 10, 1980
    Date of Patent: August 10, 1982
    Assignee: Internationale Octrooi Maatschappij "Octropa" BV
    Inventors: Jacob J. Prooi, Waltherus J. Sep, Wilhelmina Westerhof