Patents by Inventor Leonard Josef Arnold L.J.A. Nielaba

Leonard Josef Arnold L.J.A. Nielaba 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).

  • Material sheet and process for its preparation
    Patent number: 9541351
    Abstract: The invention relates to a material sheet comprising at least one monolayer, wherein at least one monolayer comprises a plurality of drawn unidirectional polymer fibers having a strength of greater than 1.2 GPa, characterized in that the at least one monolayer has a thickness of less than 100 ?m and the material sheet comprises a bonding agent of less than 13 wt % relative to the total weight of the material sheet.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: January 10, 2017
    Assignee: DSM IP ASSETS B.V.
    Inventors: Roelof R. Marissen, Reinard Jozef Maria R. J. M. Steeman, Leonard Josef Arnold L. J. A. Nielaba
  • Process for removing residual spin solvent from a gel spun filament, the filament, multi-filament yarn and products comprising the filament
    Patent number: 9260801
    Abstract: Process for removing residual spin solvent from a gel spun, UHMwPE filament having an effective diameter of above 16 ?m, comprising the steps of: removing residual spin solvent from the filament to a level of below 100 ppm at elevated temperature, while keeping the filament taut. The invention also relates to gel spun UHMwPE filament having an effective diameter of above 16 ?m and a residual spin solvent residue of less than 100 ppm. Preferably the filament has a creep rate, measured at 50° C., under a load, so that the initial stress is 600 MPa, of less than 510?6 sec?1.
    Type: Grant
    Filed: March 21, 2008
    Date of Patent: February 16, 2016
    Assignee: DSM IP ASSETS B.V.
    Inventors: Roelof R. Marissen, Claudia Maria C. M. Vaz, Carina Sacha C. S. Snijder, Joseph Arnold Paul Maria J A P M Simmelink, Leonard Josef Arnold L. J. A. Nielaba
  • MATERIAL SHEET AND PROCESS FOR ITS PREPARATION
    Publication number: 20100260968
    Abstract: The invention relates to a material sheet comprising at least one monolayer, wherein at least one monolayer comprises a plurality of drawn unidirectional polymer fibers having a strength of greater than 1.2 GPa, characterised in that the at least one monolayer has a thickness of less than 100 ?m and the material sheet comprises a bonding agent of less than 13 wt % relative to the total weight of the material sheet.
    Type: Application
    Filed: October 29, 2008
    Publication date: October 14, 2010
    Inventors: Roelof R. Marissen, Reinard Jozef Maria R.J.M. Steeman, Leonard Josef Arnold L.J.A. Nielaba
  • PROCESS FOR REMOVING RESIDUAL SPIN SOLVENT FROM A GEL SPUN FILAMENT, THE FILAMENT, MULTI-FILAMENT YARN AND PRODUCTS COMPRISING THE FILAMENT
    Publication number: 20100086781
    Abstract: Process for removing residual spin solvent from a gel spun, UHMwPE filament having an effective diameter of above 16 ?m, comprising the steps of: removing residual spin solvent from the filament to a level of below 100 ppm at elevated temperature, while keeping the filament taut. The invention also relates to gel spun UHMwPE filament having an effective diameter of above 16 ?m and a residual spin solvent residue of less than 100 ppm. Preferably the filament has a creep rate, measured at 50° C., under a load, so that the initial stress is 600 MPa, of less than 510?6 sec?1.
    Type: Application
    Filed: March 21, 2008
    Publication date: April 8, 2010
    Inventors: Roelof R. Marissen, Claudia Maria C.M. Vaz, Carina Sacha C.S. Snijder, Joseph Arnold Paul Maria Japm Simmelink, Leonard Josef Arnold L.J.A. Nielaba