Patents by Inventor Waldemar Eichler

Waldemar Eichler 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).

  • LASER-MARKABLE SEALING COMPOUNDS WITH OXYGEN ABSORBERS
    Publication number: 20250333630
    Abstract: Receptacle closure made of metal, with a sealing insert that is arranged in the receptacle closure in such a way that it comes into contact with the mouth of the receptacle when the receptacle closure is positioned on the receptacle, wherein the sealing insert contains or is made from a sealing compound that includes at least 10% by weight, preferably at least 40% by weight LDPE relative to the total weight of the sealing compound, in particular with butene, hexene or octene as comonomer besides contents of LLDPE and/or OBC and a content of more than 2% by weight of at least one oxygen-absorbing compound, preferably sodium sulfite.
    Type: Application
    Filed: April 6, 2023
    Publication date: October 30, 2025
    Inventors: Simon Heyder, Waldemar Eichler, Katharina Bahrs
  • PVC-free seals for twist crowns
    Patent number: 10450449
    Abstract: The invention relates to a polymer compound for a PVC-free sealing insert for twist crowns, wherein the Shore A hardness of the polymer compound is between 50 and 90 and in the compressive deformation test analogous to ASTM D395-97 Method B at 70 DEG. C. the polymer compound exhibits a compression set of 30-90%.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: October 22, 2019
    Assignee: Actega DS GmbH
    Inventors: Dany Mängel, Waldemar Eichler
  • Sealing compounds with barrier properties
    Patent number: 9708478
    Abstract: The invention relates to a polymer compound for a PVC-free sealing system for container closures, which is equipped with at least one oxygen-consuming compound, in which the Shore D hardness of the polymer compound is at least 20 and the polymer compound has a melt flow index (190° C., 5 kg) of at least 5.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: July 18, 2017
    Assignee: ACTEGA DS GMBH
    Inventors: Waldemar Eichler, Rüdiger Wittenberg
  • SEALING COMPOUNDS WITH BARRIER PROPERTIES
    Publication number: 20160152808
    Abstract: The invention relates to a polymer compound for a PVC-free sealing system for container closures, which is equipped with at least one oxygen-consuming compound, in which the Shore D hardness of the polymer compound is at least 20 and the polymer compound has a melt flow index (190° C., 5 kg) of at least 5.
    Type: Application
    Filed: January 8, 2016
    Publication date: June 2, 2016
    Inventors: Waldemar EICHLER, Rüdiger WITTENBERG
  • PVC-Free Seals for Twist Crowns
    Publication number: 20130026127
    Abstract: The invention relates to a polymer compound for a PVC-free sealing insert for twist crowns, wherein the Shore A hardness of the polymer compound is between 50 and 90 and in the compressive deformation test analogous to ASTM D395-97 Method B at 70 DEG C the polymer compound exhibits a compression set of 30-90%.
    Type: Application
    Filed: November 20, 2009
    Publication date: January 31, 2013
    Applicant: Actega DS GmbH
    Inventors: Dany Mängel, Waldemar Eichler