Patents by Inventor Knut Hoffmann

Knut Hoffmann 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).

  • Cyanoacrylate compositions
    Patent number: 12065554
    Abstract: Cyanoacrylate-containing compositions that include, in addition to the cyanoacrylate component, an anhydride and a toughening agent comprising a co-polymer of polyvinyl chloride and polyvinyl acetate are provided.
    Type: Grant
    Filed: February 4, 2021
    Date of Patent: August 20, 2024
    Assignee: Henkel AG & Co. KGaA
    Inventors: Emer Ward, Raymond Tully, Barry Burns, Ralf Gossen, Knut Hoffmann, Juergen Lotz
  • Method for compounding and applying adhesives
    Patent number: 10981125
    Abstract: The invention relates to continuous methods for compounding and applying adhesives, characterized in that (i) a base component of the adhesive is mixed continuously with at least one aggregate so as to produce a compounded adhesive; and (ii) the adhesive compounded in this manner is applied to a substrate. The invention also relates to such methods where a device as described here is used to carry out the method.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: April 20, 2021
    Assignees: Henkel AG & Co. KGaA, Homag Holzbearbeitungssysteme GmbH
    Inventors: Knut Hoffmann, Juergen Lotz, Johannes Schmid
  • Device for preparing and applying adhesive
    Patent number: 10471459
    Abstract: The invention relates to a device for preparing and applying adhesive, comprising a feed unit, a preparing unit, and an application unit, wherein the feed unit is used to feed a basic component of the adhesive and/or of at least one additive, wherein the preparing unit effects continuous mixing of the basic component of the adhesive with the one or more fed additives to form the prepared adhesive and continuous conveying of the prepared adhesive, wherein the adhesive prepared in such a way is conveyed from the preparing unit into the application unit and can be applied to a workpiece by the application unit.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: November 12, 2019
    Assignees: HOMAG GMBH, HENKEL AG & CO. KGAA
    Inventors: Johannes Schmid, Knut Hoffmann, Jürgen Lotz
  • Method for Compounding and Applying Adhesives
    Publication number: 20180280898
    Abstract: The invention relates to continuous methods for compounding and applying adhesives, characterized in that (i) a base component of the adhesive is mixed continuously with at least one aggregate so as to produce a compounded adhesive; and (ii) the adhesive compounded in this manner is applied to a substrate. The invention also relates to such methods where a device as described here is used to carry out the method.
    Type: Application
    Filed: June 7, 2018
    Publication date: October 4, 2018
    Inventors: Knut Hoffmann, Juergen Lotz, Johannes Schmid
  • DEVICE FOR PREPARING AND APPLYING ADHESIVE
    Publication number: 20170120288
    Abstract: The invention relates to a device for preparing and applying adhesive, comprising a feed unit, a preparing unit, and an application unit, wherein the feed unit is used to feed a basic component of the adhesive and/or of at least one additive, wherein the preparing unit effects continuous mixing of the basic component of the adhesive with the one or more fed additives to form the prepared adhesive and continuous conveying of the prepared adhesive, wherein the adhesive prepared in such a way is conveyed from the preparing unit into the application unit and can be applied to a workpiece by the application unit.
    Type: Application
    Filed: May 7, 2015
    Publication date: May 4, 2017
    Applicants: HOMAG GMBH, HENKEL AG & CO. KGAA
    Inventors: Johannes SCHMID, Knut HOFFMANN, Jürgen LOTZ
  • Adhesives made from polymer systems
    Patent number: 9290680
    Abstract: The present invention relates to an adhesive, comprising at least one polymer system obtained by a process for reducing the melt viscosity of at least one polymer blend starting material, wherein the process comprises the step of treating at least one polymer blend with at least one radical donor under shear stress at a temperature above the softening point of said polymer blend.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: March 22, 2016
    Assignees: HENKEL AG & CO. KGAA, HENKEL IP & HOLDING GMBH
    Inventors: Dirk Kasper, Thomas Mueller, Gunter Hoffmann, Knut Hoffmann, Andy Swain, Claudia Yaacoub, Maria Cristina Barbosa DeJesus
  • ADHESIVES MADE FROM POLYMER SYSTEMS
    Publication number: 20140371379
    Abstract: The present invention relates to an adhesive, comprising at least one polymer system obtained by a process for reducing the melt viscosity of at least one polymer blend starting material, wherein the process comprises the step of treating at least one polymer blend with at least one radical donor under shear stress at a temperature above the softening point of said polymer blend.
    Type: Application
    Filed: September 2, 2014
    Publication date: December 18, 2014
    Inventors: Dirk Kasper, Thomas Mueller, Gunter Hoffmann, Knut Hoffmann, Andy Swain, Claudia Yaacoub, Maria Cristina Barbosa DeJesus
  • Adhesives made from polymer systems
    Patent number: 8853329
    Abstract: The present invention relates to an adhesive, comprising at least one polymer system obtained by a process for reducing the melt viscosity of at least one polymer blend starting material, wherein the process comprises the step of treating at least one polymer blend with at least one radical donor under shear stress at a temperature above the softening point of said polymer blend.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: October 7, 2014
    Assignees: Henkel AG & Co. KGAA, Henkel US IP LLC
    Inventors: Dirk Kasper, Thomas Möller, Gunter Hoffmann, Knut Hoffmann, Andy Swain, Claudia Yaacoub, Maria Cristina Barbosa Dejesus
  • Process for manufacturing an adhesive by means of extrusion
    Patent number: 8669322
    Abstract: The present invention relates to a process for manufacturing an adhesive by extrusion, wherein the adhesive comprises at least one degraded polypropylene(co)polymer and at least one additional additive.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: March 11, 2014
    Assignee: Henkel AG & Co. KGAA
    Inventors: Dirk Kasper, Knut Hoffmann, Petra Padurschel, Thomas Moeller, Gunter Hoffmann, Juergen Lotz, Jordi Romaguera Matas
  • Adhesives Made From Polymer Systems
    Publication number: 20120016086
    Abstract: The present invention relates to an adhesive, comprising at least one polymer system obtained by a process for reducing the melt viscosity of at least one polymer blend starting material, wherein the process comprises the step of treating at least one polymer blend with at least one radical donor under shear stress at a temperature above the softening point of said polymer blend.
    Type: Application
    Filed: September 26, 2011
    Publication date: January 19, 2012
    Inventors: Dirk Kasper, Thomas Möller, Gunter Hoffmann, Knut Hoffmann, Andy Swain, Claudia Yaacoub, Maria Cristina Barbosa Dejesus