Patents by Inventor Wilhelm Lindemann

Wilhelm Lindemann 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).

  • Rigid foam envelopment of the connections of pipes
    Patent number: 9476539
    Abstract: The invention relates to the envelopment of a connection of at least two pipes or parts thereof by an open-celled rigid foam, the production of such an envelope and also the use of open-celled rigid foam for protecting connections of two pipes.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: October 25, 2016
    Assignee: BASF SE
    Inventors: Christof Grieser-Schmitz, Peter Huntemann, Annika Halwe-Bommelmann, Wilhelm Lindemann
  • Insulated pipes
    Patent number: 8231952
    Abstract: A process for the batchwise production of insulated pipes, comprising the steps: 1) provision of medium pipe and casing, the medium pipe being arranged inside the casing, 2) production of a polyisocyanurate foam by reacting an isocyanate component (a) with a polyol mixture (b) between medium pipe and casing, wherein the polyol mixture (b) comprises no polyester alcohols and has a viscosity of less than 1300 mPa·s, measured according to DIN 53019 at 20° C.
    Type: Grant
    Filed: April 2, 2007
    Date of Patent: July 31, 2012
    Assignee: BASF Aktiengesellschaft
    Inventors: Christof Grieser-Schmitz, Wilhelm Lindemann
  • RIGID FOAM ENVELOPMENT OF THE CONNECTIONS OF PIPES
    Publication number: 20110175346
    Abstract: The invention relates to the envelopment of a connection of at least two pipes or parts thereof by an open-celled rigid foam, the production of such an envelope and also the use of open-celled rigid foam for protecting connections of two pipes.
    Type: Application
    Filed: January 14, 2011
    Publication date: July 21, 2011
    Applicant: BASF SE
    Inventors: Christof GRIESER-SCHMITZ, Peter Huntemann, Annika Halwe-Bommelmann, Wilhelm Lindemann
  • INSULATED PIPES
    Publication number: 20100098891
    Abstract: A process for the batchwise production of insulated pipes, comprising the steps: 1) provision of medium pipe and casing, the medium pipe being arranged inside the casing, 2) production of a polyisocyanurate foam by reacting an isocyanate component (a) with a polyol mixture (b) between medium pipe and casing, wherein the polyol mixture (b) comprises no polyester alcohols and has a viscosity of less than 1300 mPa·s, measured according to DIN 53019 at 20° C.
    Type: Application
    Filed: April 2, 2007
    Publication date: April 22, 2010
    Applicant: BASF SE
    Inventors: Christof Grieser-Schmitz, Wilhelm Lindemann