Patents by Inventor Wolf-Ruediger Mueller

Wolf-Ruediger Mueller 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).

  • Self-supporting and redetachable adhesive article
    Patent number: 6555217
    Abstract: A self-supporting and self-adhesive molded article is described having a glass transition temperature of less than 10° C. and containing a binder and an aliphatic or cyoaliphatic nonionic surfactant. The binder may contain at least one addition polymer or addition copolymer. The article is redetachable from the material surfaces to which it may be adhered. Thus, the article may be attached, detached and reattached to a wall or cabinet surface and may have paper or other light weight, decorative material attached, detached and reattached to it. The detachment and reattachment process maybe repeated numerous times, particularly with intervening cleaning of the surface of the self-supporting and self-adhesive molded article.
    Type: Grant
    Filed: January 22, 2001
    Date of Patent: April 29, 2003
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Wolf-Ruediger Mueller, Joerg Kuhn, Bernd W. Peters
  • Polyacrylamide with low molecular weight
    Patent number: 6180705
    Abstract: The invention concerns a polyacrylamide-containing composition which is characterized in that it has a molecular weight of between 2,000 and 8,000 g/mol, determined by means of gel permeation chromatography (GPC), and as a 15% aqueous solution still has a Brookfield viscosity of between 100 and 500 mPas at 25° C. The invention further concerns the use of this polyacrylamide-containing composition for the flat bonding of water absorbent and hard surfaces and for equipping plastic surfaces with non-slip protection.
    Type: Grant
    Filed: February 13, 1998
    Date of Patent: January 30, 2001
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Norbert Huebner, Wolf-Ruediger Mueller, Bernd Willi Peters, Ludwig Schieferstein
  • Bonding process
    Patent number: 6093270
    Abstract: The proposed process for bonding together two substrates with an anhydrous or low-water-content partially crystalline adhesive which is solid at room temperature is characterized in that the adhesive is first activated by internal and/or external friction. The substrates are then joined together with the adhesive between them. When allowed to stand, the structure attains its final strength after a period of between a few seconds to a few days. The friction destroys the crystalline structure and causes the adhesive to become gluey, and re-crystallization gives it its final strength and eliminates the gluey quality. The adhesive is based preferably on polyester or polyurethane and used preferably in the form of a gum stick without impermeable packaging. It is especially suitable for bonding paper, since it does not cause corrugation.
    Type: Grant
    Filed: November 24, 1997
    Date of Patent: July 25, 2000
    Assignee: Henkel Kommanditgesellscahft auf Aktien
    Inventors: Andreas Ferencz, Norbert Huebner, Herbert Fischer, Lothar Unger, Bernd Peters, Wolf-Ruediger Mueller, Horst Donothek, Joerg Kuhn