Patents by Inventor Mario T. R. van Wandelen

Mario T. R. van Wandelen 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).

  • Fibre-reinforced polymer composites and processes for preparing the same
    Patent number: 7866139
    Abstract: The invention provides a fiber-reinforced polymer composite comprising fibers derived from mammalian hair and/or feathers, wherein the fibers have been prepared by means of a process comprising the steps of: (a) subjecting mammalian hair and/or feathers to an oxidation treatment in which the hair and/or feathers (is) are contacted with a solution, which comprises a bleaching agent; (b) separating the oxidized hair and/or feathers from the solution; and (c) drying the separated hair and/or feathers. The invention further provides processes to prepare said composite, a process to prepare said fibers, and shaped polymer products comprising said composite.
    Type: Grant
    Filed: June 9, 2005
    Date of Patent: January 11, 2011
    Assignee: Nederlandse Organisatie voor Toegepast-Natuurwetenschappelijk Onderzoek TNO
    Inventors: Jan J. de Vlieger, Theodoor M. Slaghek, Theodorus J. J. M. Kock, Eric G. M. Craenmehr, Willem C. Drost, Mario T. R. van Wandelen
  • Use of particulate material derived from mammalian hair in the preparation of paper or paperboard products
    Patent number: 7862684
    Abstract: The invention relates to the use of a particulate material derived from mammalian hair in the preparation of a paper or paperboard product, which particulate material has been prepared by means of a process, which comprises the following steps: (a) subjecting mammalian hair to an oxidation treatment in which the hair is contacted with a solution, which comprises a bleaching agent; (b) separating the oxidised hair from the solution; (c) drying the separated hair; and (d) subjecting the dried hair to a treatment in which the hair is formed into a particulate material having an average particle size in the range of from 0.5 to 4 mm. The invention further relates to a paper or paperboard product, or paper pulp comprising said particulate material.
    Type: Grant
    Filed: February 18, 2005
    Date of Patent: January 4, 2011
    Assignee: Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek TNO
    Inventors: Theodoor M. Slaghek, Mario T. R. van Wandelen, Willem C. Drost, Dario M. R. Lo Cascio, Remco W. G. van Willige, Willem Huijser
  • Mixing of a protein hydrolysate derived from keratin-containing material in the wet-end of a papermaking process
    Patent number: 7655113
    Abstract: A process for producing a protein hydrolysate derived from keratin containing material with an oxidative bleaching agent at an acidic pH and mixing the keratin hydrolysate as an additive to the wet-end of a papermaking process. The process achieves a paper with a lower porosity and greater breaking length.
    Type: Grant
    Filed: February 18, 2005
    Date of Patent: February 2, 2010
    Assignee: Nederlandse Organisatie Voor Toegepastnatuurwetenschappelijk Onderzoek Tno
    Inventors: Theodoor M. Slaghek, Mario T. R. van Wandelen, Willem C. Drost, Dario M. R. Lo Cascio, Remco W. G. van Willige