Patents by Inventor Dirk Caspari

Dirk Caspari 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).

  • Acrylate copolymers and pressure-sensitive adhesives obtainable therefrom for bonding low-energy surfaces
    Patent number: 7056413
    Abstract: An acrylate copolymer for use in pressure-sensitive adhesives, particularly suitable for the bonding of low-energy surfaces, is composed of the following monomer components: A) 60 to 95% by weight of one or more monomers selected from alkyl acrylates and alkyl methacrylates, the alkyl containing 1 to 10 carbon atoms; B) 5 to 15% by weight of one or more monomers selected from esters of (meth)acrylic acid with a polyethylene glycol derivative having from 2 to 4 ethylene glycol units, the (meth)acrylic esters being free from hydroxyl groups; and C) 1 to 35% by weight of a mixture of at least two vinyl compounds selected from vinyl compounds which contain one or more of the following functional groups: free carbonyl groups, free carboxyl groups, groups having one or more active hydrogen atoms.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: June 6, 2006
    Assignee: Lohmann GmbH & Co. KG
    Inventors: Dirk Caspari, Frank Kura, Mario Schutte, Kurt Seeger
  • Acrylate copolymers and pressure-sensitive adhesives obtainable therefrom for bonding low-energy surfaces
    Publication number: 20030235686
    Abstract: The invention relates to an acrylate copolymer for use in pressure-sensitive adhesives, particularly suitable for the bonding of low-energy surfaces, composed of the following monomer components A, B and C:
    Type: Application
    Filed: April 25, 2003
    Publication date: December 25, 2003
    Applicant: LOHMANN GMBH & CO. KG
    Inventors: Dirk Caspari, Frank Kura, Mario Schutte, Kurt Seeger