Patents by Inventor Siegfried Lambert

Siegfried Lambert 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: 6093754
    Abstract: The invention relates to a process for the preparation of articles with a three-dimensional surface structure, in which a substrate is printed, at least one of the printing inks employed for the printing being varnish-repellent, and the printed substrate is then varnished. In accordance with the invention, the printed substrate is varnished with a radiation-curable varnish which contains no amino resin and comprisesA) from 18 to 99.9% by weight of an epoxy acrylate, a polyether acrylate or a polyester acrylate,B) from 0.1 to 5.0% by weight of a Bronsted acid or an acid anhydride,C) from 0 [sic] to 12% by weight of a photoinitiator,D) from 0 to 40% by weight of water or at least one organic solvent,E) from 0 [sic] to 10% by weight of a polyol which may be ethoxylated and/or propoxylated and has from 2 to 50 carbon atoms in the molecule, andF) from 0 [sic] to 30% by weight of other auxiliaries and additives,and the varnish coat applied is cured with high-energy radiation.
    Type: Grant
    Filed: July 10, 1998
    Date of Patent: July 25, 2000
    Assignee: BASF Coatings AG
    Inventors: Siegfried Lambert, Karlheinz Dickerhof, Wolfgang Kranig
  • Patent number: 5830573
    Abstract: The invention relates to a process for the preparation of articles with a three-dimensional surface structure, in which a substrate is printed, at least one of the printing inks employed for the printing being varnish-repellent, and the printed substrate is then varnished. In accordance with the invention, the printed substrate is varnished with a radiation-curable varnish which contains no amino resin and comprisesA) from 18 to 99.9% by weight of an epoxy acrylate, a polyether acrylate or a polyester acrylate,B) from 0.1 to 5.0% by weight of a Bronsted acid or an acid anhydride,C) from 0 ?sic! to 12% by weight of a photoinitiator,D) from 0 to 40% by weight of water or at least one organic solvent,E) from 0 ?sic! to 10% by weight of a polyol which may be ethoxylated and/or propoxylated and has from 2 to 50 carbon atoms in the molecule, andF) from 0 ?sic! to 30% by weight of other auxiliaries and additives,and the varnish coat applied is cured with high-energy radiation.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: November 3, 1998
    Assignee: BASF Lacke+Farben AG
    Inventors: Siegfried Lambert, Karlheinz Dickerhof, Wolfgang Kranig