Patents by Inventor Jürgen Lippemeier

Jürgen Lippemeier 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).

  • Process for the preparation of low-viscosity, water-emulsifiable allophanates with radiation-curable groups
    Patent number: 9057003
    Abstract: The present invention relates to a process for the preparation of low-viscosity polyisocyanate reaction products which contain allophanate groups, can be readily emulsified in water and contain activated groups which react, by polymerization, with ethylenically unsaturated compounds under the action of actinic radiation. The present invention furthermore relates to the products which can be prepared by the process according to the invention and their use.
    Type: Grant
    Filed: October 15, 2012
    Date of Patent: June 16, 2015
    Assignee: ALLNEX IP S.a.r.L.
    Inventors: Stefan Sommer, Michael Ludewig, Wolfgang Fischer, Jan Weikard, Jürgen Lippemeier
  • Aqueous coating systems based on physically drying urethane acrylates
    Patent number: 9034985
    Abstract: The invention relates to radiation curable coating systems on the basis of aqueous polyurethane dispersions, to a method for the production thereof, to the use of the coating systems as paints and/or adhesives, and to objects and substrates provided with said paints and/or adhesives.
    Type: Grant
    Filed: January 30, 2010
    Date of Patent: May 19, 2015
    Assignee: Bayer MaterialScience AG
    Inventors: Stefan Sommer, Harald Blum, Jürgen Lippemeier, Miguel Fernandez
  • Tin-free aqueous polyurethane dispersions
    Patent number: 8865832
    Abstract: The present invention relates to radiation-curable coating compositions based on tin-free aqueous polyurethane dispersions based on polyurethane acrylates (i), characterized in that the polyurethane acrylate (i) comprises as builder components A) one or more compounds with at least one group which is reactive towards isocyanate and at least one unsaturated group which can undergo free radical polymerization, B) one or more compounds which differ from A) and have at least one group which is reactive towards isocyanate, C) one or more compounds with at least one group which is reactive towards isocyanate and additionally at least one group having a hydrophilizing action, D) one or more organic polyisocyanates, which are reacted in the presence of F) bismuth(III) salt(s) and G) an acid having a pKa of <2.5, and a process for the preparation thereof, the use of the coating compositions as lacquers and/or adhesives, and objects and substrates provided with these lacquers and/or adhesives.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: October 21, 2014
    Assignee: Bayer MaterialScience AG
    Inventors: Stefan Sommer, Erhard Luehmann, Thorsten Rische, Jürgen Lippemeier
  • NOVEL 2C PUR SYSTEMS
    Publication number: 20120259062
    Abstract: The present invention relates to alkali metal salts of phosphomolybdic acid, especially sodium phosphomolybdate, for the accelerated curing of polyisocyanates with polyols, and to polyurethane Systems in which they are present.
    Type: Application
    Filed: September 30, 2010
    Publication date: October 11, 2012
    Applicant: Bayer MaterialScience AG
    Inventors: Thomas Münzmay, Alice Münzmay, Sebastian Dörr, Marc Claudius Schrinner, Martin Melchiors, Jürgen Lippemeier
  • AQUEOUS COATING SYSTEMS BASED ON PHYSICALLY DRYING URETHANE ACRYLATES
    Publication number: 20120041145
    Abstract: The invention relates to radiation curable coating systems on the basis of aqueous polyurethane dispersions, to a method for the production thereof, to the use of the coating systems as paints and/or adhesives, and to objects and substrates provided with said paints and/or adhesives.
    Type: Application
    Filed: January 30, 2010
    Publication date: February 16, 2012
    Applicant: Bayer MaterialScience AG
    Inventors: Stefan Sommer, Harald Blum, Jürgen Lippemeier, Miguel Fernandez
  • TIN-FREE AQUEOUS POLYURETHANE DISPERSIONS
    Publication number: 20120041131
    Abstract: The present invention relates to radiation-curable coating compositions based on tin-free aqueous polyurethane dispersions based on polyurethane acrylates (i), characterized in that the polyurethane acrylate (i) comprises as builder components A) one or more compounds with at least one group which is reactive towards isocyanate and at least one unsaturated group which can undergo free radical polymerization, B) one or more compounds which differ from A) and have at least one group which is reactive towards isocyanate, C) one or more compounds with at least one group which is reactive towards isocyanate and additionally at least one group having a hydrophilizing action, D) one or more organic polyisocyanates, which are reacted in the presence of F) bismuth(III) salt(s) and G) an acid having a pKa of <2.5, and a process for the preparation thereof, the use of the coating compositions as lacquers and/or adhesives, and objects and substrates provided with these lacquers and/or adhesives.
    Type: Application
    Filed: October 29, 2010
    Publication date: February 16, 2012
    Applicant: Bayer MaterialScience AG
    Inventors: Stefan Sommer, Erhard Luehmann, Thorsten Rische, Jürgen Lippemeier
  • Aqueous Coating Systems Based On Physically Drying Urethane Acrylates
    Publication number: 20100210757
    Abstract: The invention relates to radiation-curable coating systems based on aqueous polyurethane dispersions, to a process for their production, to the use of the coating systems as lacquers and/or adhesives, and also to articles and substrates provided with these lacquers and/or adhesive.
    Type: Application
    Filed: February 12, 2010
    Publication date: August 19, 2010
    Applicant: Bayer MaterialScience AG
    Inventors: Stefan Sommer, Harald Blum, Jürgen Lippemeier