Patents Assigned to 3M Deutschland GmbH
  • Patent number: 8722760
    Abstract: The present invention provides self-adhesive compositions that include a plurality of acidic compounds. The self-adhesive compositions are useful for applications including, for example, restoring dental structures and adhering orthodontic appliances to teeth.
    Type: Grant
    Filed: August 9, 2005
    Date of Patent: May 13, 2014
    Assignees: 3M Innovative Properties Company, 3M Deutschland GmbH
    Inventors: Thomas Luchterhandt, Reinhold Hecht, Markus Watermann, Steven M. Aasen
  • Patent number: 8424718
    Abstract: The present invention relates to a method of mixing and dispensing viscous materials, comprising the steps of: inserting a cartridge containing one or more viscous materials in a chamber; activating a first motor (1) to move a plunger from a first position to a second position within the cartridge and activating a second motor (2) to move the plunger from the second position further within the cartridge to dispense the material.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: April 23, 2013
    Assignee: 3M Deutschland GmbH
    Inventors: Ingo W. Wagner, Manfred Harre, Hansjoerg Spitschan
  • Patent number: 8415266
    Abstract: The invention relates to catalyst components, containing: (A) at least one Brönsted acid, (B) water, (C) at least one antacid-acting compound from the group consisting of the oxides, hydroxides, carbonates and/or carboxylates of the elements aluminum, chromium, copper, germanium, manganese, lead, antimony, tin, tellurium, titanium and/or zinc, (D) optionally at least one inert diluent, (E) optionally at least one modifier, the mixture of one part by weight of the catalyst component with three parts by weight bisaziridino polyether with an average imino equivalent mass of 3100, preparable from a polyetherdiol which comprises ethylene oxide and tetrahydrofuran units in the molar ratio 1:3.5 solidifying within 0.5 to 20 minutes to a solid elastomer material which has a shore A hardness of at least 20 according to DIN 53505 after 24 hours' storage time at room temperature.
    Type: Grant
    Filed: April 12, 2001
    Date of Patent: April 9, 2013
    Assignee: 3M Deutschland GmbH
    Inventors: Gunther Eckhardt, Erich Wanek, Bernd Kuppermann
  • Patent number: 8322909
    Abstract: The present invention provides a mixer for producing a paste by mixing components, comprising a housing having a longitudinal axis, a rear end, and a front end provided with a discharge opening; and a mixing chamber formed in said housing and having an entry side facing said rear end of said housing. The initial content of the mixing chamber is diverted from the discharge opening, and the subsequent content of the mixing chamber is extrudable from the discharge opening.
    Type: Grant
    Filed: September 21, 2005
    Date of Patent: December 4, 2012
    Assignee: 3M Deutschland GmbH
    Inventors: Jens Gramann, Ingo W. Wagner, Kai R. Huble
  • Patent number: 8292619
    Abstract: The present invention is directed to a unit dose delivery system for flowable substances. The delivery system or applicator of the present invention allows storage, mixing and well controlled dispensing of multi-material component substances.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: October 23, 2012
    Assignee: 3M Deutschland GmbH
    Inventors: Marc Peuker, Arno Hohmann, Helmut Pauser
  • Patent number: 8246951
    Abstract: The invention relates to a composition comprising at least one collagenolytic active enzyme with enzymatic activity at acidic pH for drilless enzymatic caries removal. Furthermore, the present invention relates to a process of producing this collagenolytic active enzyme comprising composition and to processes of removing caries. The invention also relates to the use of collagenolytic active enzyme comprising compositions for producing a treatment agent for dental applications.
    Type: Grant
    Filed: June 3, 2008
    Date of Patent: August 21, 2012
    Assignee: 3M Deutschland GmbH
    Inventors: Oliver Kappler, Ingo R. Haeberlein