Patents by Inventor Dietrich Wienke

Dietrich Wienke 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: 9757927
    Abstract: The invention relates to a flexible sheet comprising (i) a woven fabric comprising yarns containing polyethylene fibers; and (ii) a plastomer layer adhered to at least one surface of said woven fabric wherein said plastomer is a semi-crystalline copolymer of ethylene or propylene and one or more C2 to C12 ?-olefin co-monomers and wherein said plastomer having a density as measured according to ISO1183 of between 870 and 930 kg/m3, wherein the flexible sheet has a shrinkage of at most 1.9%.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: September 12, 2017
    Assignee: DSM IP ASSETS B.V.
    Inventors: Dietrich Wienke, Roelof Marissen, Martinus Johannes Nicolaas Jacobs, Wilheimus Gerardus Marie Bruls, Francois Antoine Marie Op Den Buijsch, Leonardus Jacobus Johannus Welzen
  • Patent number: 9522518
    Abstract: The invention relates to a method for the manufacturing of a low shrinkage flexible sheet, said sheet comprising a fabric containing polyolefin fibers, said method comprising the steps of: a) depositing a molten plastomer layer on at least one surface of the woven fabric to form a sheet having a thickness approximately equal with the sum of the thicknesses of said molten plastomer layer and of said fabric; and b) impregnating said fabric with at least part of the molten plastomer layer by drawing the sheet into a gap between two calendaring rollers at a temperature of between the melting temperature of the plastomer and the melting temperature as determined by DSC of the polyolefin fibers, said gap having a width smaller than the thickness of the sheet; wherein the width of the gap is chosen to apply an impregnation pressure on the sheet of at least 20 bars.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: December 20, 2016
    Assignee: DSM IP ASSETS B.V.
    Inventors: Dietrich Wienke, Roelof Marissen, Martinus Johannes Nicolaas Jacobs, Leonardus Jacobus Johannes Wilhelmus Welzen
  • Publication number: 20160281820
    Abstract: The present invention relates to a chain comprising a plurality of chain links comprising a polymeric fiber and wherein said chain comprises at least one spacer having a thickness ? at the contact location through which loads are directly transmitted between said chain links and a ratio ?/?=f, with ? being the thickness of any of the chain links at the contact location through which loads are directly transmitted between said chain links and f being in a range between 0.10 and 2.50. The invention further relates to the use said chain for storing, securing, lashing and tying down for handling and transporting cargo, in lifting and hoisting, logging, hauling and rigging, propulsion and driving, mooring, cargo-hold of an aircraft or naval ship.
    Type: Application
    Filed: December 9, 2014
    Publication date: September 29, 2016
    Inventors: Dietrich WIENKE, Rigobert BOSMAN, Roelof MARISSEN, Jozef Siegfried Johannes HOMMINGA
  • Patent number: 9404558
    Abstract: The invention relates to a heavy-duty chain containing chain-links comprising synthetic polymeric yarns, wherein when said chain is kept at least taut onto an essentially planar surface, each chain-link has an orthographic projection onto said planar surface, said projection having a foot print area (A), wherein the foot print areas denoted as A1 and A2 of every two adjacent links are in a relation 80% A2?A1?100% A2 with A1 being the smallest of said two areas and wherein the projection is done in such a way that the ratio of the foot print areas A2 to A1 is maximized.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: August 2, 2016
    Assignee: DSM IP ASSETS B.V.
    Inventors: Dietrich Wienke, Roelof Marissen
  • Publication number: 20150247554
    Abstract: The invention relates to a heavy-duty chain containing chain-links comprising synthetic polymeric yarns, wherein when said chain is kept at least taut onto an essentially planar surface, each chain-link has an orthographic projection onto said planar surface, said projection having a foot print area (A), wherein the foot print areas denoted as A1 and A2 of every two adjacent links are in a relation 80% A2?A1?100% A2 with A1 being the smallest of said two areas and wherein the projection is done in such a way that the ratio of the foot print areas A2 to A1 is maximized.
    Type: Application
    Filed: November 18, 2013
    Publication date: September 3, 2015
    Applicant: DSM IP ASSETS B.V.
    Inventors: Dietrich Wienke, Roelof Marissen
  • Publication number: 20150147509
    Abstract: The invention relates to an endless shaped article comprising at least one strip of material forming a plurality of convolutions of the strip of material, the strip having a longitudinal axis, wherein each convolution of said strip comprises a twist along the longitudinal axis of said strip, wherein said twist is an odd multiple of 180 degrees. The invention also relates to a method to manufacture said article, and its use as sling, loop, belt or chain link.
    Type: Application
    Filed: June 11, 2013
    Publication date: May 28, 2015
    Inventors: Rigobert Bosman, Dietrich Wienke, Johanna Gertruda Kersjes, Jozef Siegfried Johannes Homminga, Roelof Marissen, Christiaan Henri Peter Dirks
  • Publication number: 20150033936
    Abstract: Composite panel comprising at least one layer containing at least one tape comprising a thermoplastic polymer selected from the group consisting of polyolefins, polyesters, polyvinyl alcohols, polyacrylonitriles, polyamides or polyketone, wherein the tape has a tensile strength of at least 1.2 GPa and an areal density of between 5 and 150 g/m2, and an adhesive in contact with said layer, whereby the amount of the adhesive in contact with one side of the at least one layer is between 0.2 and 15 g/m2, wherein the adhesive is a plastomer wherein said plastomer is a random copolymer of ethylene or propylene and one or more C2 to C12 a-ol-efin co-monomers and wherein said plastomer has a density as measured according to 1801183 of between 860 and 930 kg/m3. In a preferred embodiment the tape comprises an ultra high molecular weight polyethylene. The composite panel is used in a ballistic resistant article.
    Type: Application
    Filed: March 7, 2013
    Publication date: February 5, 2015
    Inventors: David Michael Cummins, Dietrich Wienke, Roelof Marissen, Koen Van Putten, Joke Hendrix
  • Patent number: 8870504
    Abstract: A net is provided having a plurality of net members, the net members being arranged in a lattice structure and having a thickness (D1). The net is further provided with attachment devices having a thickness (D2) which are connected to the net members, the thickness (D2) of the attachment devices being larger that the thickness of the net members (D1) at least at the places of connection through which loads are transmitted between the net members and the attachment devices. The ratio between the thickness of the net members and the thickness of the attachment devices (D1/D2) is at least 1.15. The net is useful as a barrier net to secure an off-limits area and as a cargo net to restrain cargo movement on a platform of a pallet.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: October 28, 2014
    Assignee: DSM IP Assets B.V.
    Inventors: Dietrich Wienke, Roelof Marissen
  • Publication number: 20140186118
    Abstract: The invention relates to a barrier system comprising a barrier wall for stopping a flow of a substance to one side of said wall, wherein said barrier wall comprises a fabric impervious to the flow of said substance and containing high strength polyolefin fibers.
    Type: Application
    Filed: April 10, 2012
    Publication date: July 3, 2014
    Applicant: DSM IP ASSETS B.V.
    Inventors: Roelof Marissen, Dietrich Wienke
  • Publication number: 20140062829
    Abstract: The invention relates to an inflatable radome containing a flexible radome wall, said radome wall comprising high strength polymeric fibers and further containing a plastomer wherein said plastomer is a semi-crystalline copolymer of ethylene or propylene and one or more C2 to C12 a-olefin co-monomers and wherein said plastomer having a density as measured according to IS01183 of between 860 and 930 kg/m3.
    Type: Application
    Filed: March 19, 2012
    Publication date: March 6, 2014
    Applicant: DSM IP ASSETS B.V.
    Inventors: Dietrich Wienke, Eelco Van Oosterbosch
  • Publication number: 20120282406
    Abstract: The invention relates to a method for the manufacturing of a low shrinkage flexible sheet, said sheet comprising a fabric containing polyolefin fibers, said method comprising the steps of: a) depositing a molten plastomer layer on at least one surface of the woven fabric to form a sheet having a thickness approximately equal with the sum of the thicknesses of said molten plastomer layer and of said fabric; and b) impregnating said fabric with at least part of the molten plastomer layer by drawing the sheet into a gap between two calendaring rollers at a temperature of between the melting temperature of the plastomer and the melting temperature as determined by DSC of the polyolefin fibers, said gap having a width smaller than the thickness of the sheet; wherein the width of the gap is chosen to apply an impregnation pressure on the sheet of at least 20 bars.
    Type: Application
    Filed: October 12, 2010
    Publication date: November 8, 2012
    Inventors: Dietrich Wienke, Roelof Marissen, Martinus Johannes Nicolaas Jacobs, Leonardus Jacobus Jahannes Wilhelmus Welzen
  • Publication number: 20120264343
    Abstract: The invention relates to a flexible sheet comprising (i) a woven fabric comprising yarns containing polyethylene fibers; and (ii) a plastomer layer adhered to at least one surface of said woven fabric wherein said plastomer is a semi-crystalline copolymer of ethylene or propylene and one or more C2 to C12 ?-olefin co-monomers and wherein said plastomer having a density as measured according to ISO1183 of between 870 and 930 kg/m3, wherein the flexible sheet has a shrinkage of at most 1.9%.
    Type: Application
    Filed: October 12, 2010
    Publication date: October 18, 2012
    Inventors: Dietrich Wienke, Roelof Marissen, Martinus Johannes Nicolaas Jacobs, Wilheimus Gerardus Marie Bruls, Francois Antoine Marie Op Den Buijsch, Leonardus Jacobus Johannus Welzen
  • Publication number: 20120164902
    Abstract: The invention relates to a compressed sheet comprising at least one woven or non-woven fabric, said fabric comprising polymeric fibers, characterized in that the sheet has a bending modulus of at least 15 GPa when measured according to ASTM D790-07 in at least two directions and wherein one of said directions is the orientation direction of a first majority of the fibers contained by said fabric. The invention also relates to a method of manufacturing such compressed sheets and to articles comprising thereof.
    Type: Application
    Filed: April 22, 2010
    Publication date: June 28, 2012
    Inventors: Dietrich Wienke, Martinus Johannes Nicolaas Jacobs, Roelof Marissen, Johannes Gabriƫl Drieman, van Eelco Oosterbosch
  • Publication number: 20110176883
    Abstract: The invention relates to a net comprising a plurality of net members (100), said members being arranged in a lattice structure and having a thickness (D1), wherein the net further comprises attachment means connected to said members, wherein the thickness (D2) of the attachment means is larger that the thickness of the members (D1) at least at the place of places of connection through which loads are transmitted between said members and said means and wherein the ratio between the thickness of the members and the thickness of the attachment means (D1/D2) is at least 1.15. The invention further relates to the use of the net as a barrier net to secure an off-limits area and as a cargo net to secure restrain movement of a cargo on a platform of a pellet.
    Type: Application
    Filed: June 23, 2009
    Publication date: July 21, 2011
    Inventors: Dietrich Wienke, Roelof Marissen
  • Publication number: 20110011051
    Abstract: The present invention relates to a chain comprising a plurality of first links (100) interconnected with a plurality of adjacent links, the first links comprising polymeric multifilament yarns (110) and having a thickness (Formula (I)), at least at the portion where they interconnect with the adjacent links wherein said adjacent links have a thickness (Formula (II)) at least at the portion where they interconnect with the first links and wherein the ratio (Formula (II)/Formula (I)) is at least 1.2. The invention further relates to the use of the chain for storing, securing, and handling cargo, e.g. in lifting, hauling and rigging.
    Type: Application
    Filed: March 13, 2009
    Publication date: January 20, 2011
    Inventors: Dietrich Wienke, Roelof R. Marissen, Martinus Johannes Nicolaas M.J.N Jacobs, Christiaan Henri Peter Dirks
  • Publication number: 20100159168
    Abstract: Laminate containing a first layer and a second layer attached to the first layer, said second layer comprising high tenacity yarns, characterized in that the first layer is made out of a material selected out of the group consisting of a metal, a plywood, a solid thermoplastic or thermosetting polymer, and a composite material containing carbon fibers and/or glass fibers, and the high tenacity yarns have a tenacity of at least 0.5 GPa and are positioned in a grid structure. The laminate is damage resistance and is suitably used for the manufacture of air freight containers.
    Type: Application
    Filed: April 12, 2007
    Publication date: June 24, 2010
    Inventors: Dietrich Wienke, Roelof R. Marissen