Patents Assigned to J.S. Staedtler GmbH & Co. KG
  • Publication number: 20110172332
    Abstract: The invention relates to a wood substitute material for wood-encased pencils, comprising the following ingredients: 15-3.0% by weight of at least one polymeric binder, 50-80% by weight of at least one organic filler, 0-20% by weight of at least one inorganic filler, 0.5-5% by weight of at least one adhesion promoter, 1-30% by weight of at least one wax, 0-10% by weight of at least one colour pigment, and 0-10% by weight of at least one additive, the at least one adhesion promoter forming a chemical bond between the at least one polymeric binder and the at least one organic filler, a ratio of the at least one adhesion promoter and the at least one wax in the range from 1:2 to 1:6 being formed, and the sum of organic and inorganic filler being not more than 80% by weight.
    Type: Application
    Filed: July 11, 2009
    Publication date: July 14, 2011
    Applicant: J.S. STAEDTLER GMBH & CO. KG
    Inventors: Nikolas Lins, Sylvia Diestel, Andreas Thies
  • Publication number: 20110129284
    Abstract: The invention relates to a writing, drawing, decorating or cosmetic pencil comprising a colour-delivering, polymer-bonded lead and a polymer-bonded wood substitute material, the wood substitute material at least partly covering or surrounding the lead along its length, there being disposed, between the lead and the wood substitute material, at least one adhesion promoter layer, the lead and the wood substitute material each comprising at least one polymer, the at least one polymer in the lead being incompatible with the at least one further polymer in the wood substitute material, and the at least one adhesion promoter layer coupling on the one hand to the at least one polymer in the lead and on the other hand to the at least one further polymer in the wood substitute material.
    Type: Application
    Filed: July 11, 2009
    Publication date: June 2, 2011
    Applicant: J.S. STAEDTLER GMBH & CO. KG
    Inventors: Andreas Thies, Nikolas Lins, Christine Delapierre-Kohl, Johannes Herbolsheimer, Martin Jakob, Harald Lang, Simone Arthen
  • Publication number: 20110118383
    Abstract: The invention relates to a polymer-bonded pencil lead for writing, drawing or painting devices, in particular for lead pencils or colored pencils, comprising a polymer binder, at least one wax and at least one filler, wherein the pencil lead further comprises 0.1 to 5 wt.-% palm oil.
    Type: Application
    Filed: July 11, 2009
    Publication date: May 19, 2011
    Applicant: J.S. STAEDTLER GMBH & CO. KG
    Inventor: Andreas Thies
  • Patent number: 7803220
    Abstract: An unburnt color lead for writing devices, drawing devices and painting devices, includes at least one coloring material, at least one binder, at least one organic lubricant which is solid at room temperature, and at least one filler material whose particles essentially have a disk-shaped configuration. The color lead contains 20 to 80 weight % of the at least one filler material, and the color lead contains at least 20 weight % hexagonal bornitride as a first filler material.
    Type: Grant
    Filed: February 14, 2007
    Date of Patent: September 28, 2010
    Assignee: J.S. Staedtler GmbH & Co. KG
    Inventor: Andreas Thies
  • Patent number: 7758682
    Abstract: A non-aqueous ink with an extended cap-off time for writing, drawing, painting or marking, or a writing or marking fluid respectively, having organic solvents, binding agents, drying retarders, colorants and if necessary further additives. The ink contains a fatty acid or a fatty acid blend as a drying retarder.
    Type: Grant
    Filed: May 10, 2006
    Date of Patent: July 20, 2010
    Assignee: J.S. Staedtler GmbH & Co. KG
    Inventor: Kirsten Bührke
  • Publication number: 20070289482
    Abstract: An unburnt color lead for writing devices, drawing devices and painting devices, includes at least one coloring material, at least one binder, at least one organic lubricant which is solid at room temperature, and at least one filler material whose particles essentially have a disk-shaped configuration. The color lead contains 20 to 80 weight % of the at least one filler material, and the color lead contains at least 20 weight % hexagonal bornitride as a first filler material.
    Type: Application
    Filed: February 14, 2007
    Publication date: December 20, 2007
    Applicant: J.S. Staedtler GmbH & Co. KG
    Inventor: Andreas Thies
  • Patent number: D551708
    Type: Grant
    Filed: September 2, 2005
    Date of Patent: September 25, 2007
    Assignee: J.S. Staedtler GmbH & Co. KG
    Inventor: Christian Leibeck
  • Patent number: D582979
    Type: Grant
    Filed: August 17, 2007
    Date of Patent: December 16, 2008
    Assignee: J.S. Staedtler GmbH & Co. KG
    Inventor: Christian Leibeck
  • Patent number: D605695
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: December 8, 2009
    Assignee: J.S. Staedtler GmbH & Co. KG
    Inventor: Christian Leibeck
  • Patent number: D607054
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: December 29, 2009
    Assignee: J.S. Staedtler GmbH & Co. KG
    Inventor: Christian Leibeck
  • Patent number: D620979
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: August 3, 2010
    Assignee: J.S. Staedtler GmbH & Co. KG
    Inventors: Reinhard Renner, Ulrich Schweig
  • Patent number: D623692
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: September 14, 2010
    Assignee: J.S. Staedtler GmbH & Co. KG
    Inventors: Reinhard Renner, Ulrich Schweig
  • Patent number: D626996
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: November 9, 2010
    Assignee: J.S. Staedtler GmbH & Co. KG
    Inventor: Christian Leibeck
  • Patent number: D637230
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: May 3, 2011
    Assignee: J.S. Staedtler GmbH & Co. KG
    Inventors: Reinhard Renner, Ulrich Schweig
  • Patent number: D640740
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: June 28, 2011
    Assignee: J.S. Staedtler GmbH & Co. KG
    Inventors: Reinhard Renner, Ulrich Schweig
  • Patent number: D640741
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: June 28, 2011
    Assignee: J.S. Staedtler GmbH & Co. KG
    Inventors: Reinhard Renner, Ulrich Schweig
  • Patent number: D641043
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: July 5, 2011
    Assignee: J.S. Staedtler GmbH & Co. KG
    Inventors: Reinhard Renner, Ulrich Schweig
  • Patent number: D645900
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: September 27, 2011
    Assignee: J.S. Staedtler GmbH & Co. KG
    Inventors: Reinhard Renner, Ulrich Schweig
  • Patent number: D646323
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: October 4, 2011
    Assignee: J.S. Staedtler GmbH & Co. KG
    Inventors: Reinhard Renner, Ulrich Schweig
  • Patent number: D647965
    Type: Grant
    Filed: July 16, 2009
    Date of Patent: November 1, 2011
    Assignee: J.S. Staedtler GmbH & Co. KG
    Inventor: Christian Leibeck