Patents by Inventor Andreas H. Rothacker

Andreas H. Rothacker 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).

  • Polyisocyanurate compositions and composites
    Patent number: 7202302
    Abstract: Polyisocyanurate systems, pultrusion of those systems to produce reinforced polyisocyanurate matrix composites, and to composites produced thereby. The polyisocyanurate systems include a polyol component, an optional chain extender, and an isocyanate. The polyisocyanurate systems have extended initiation times of about 5 minutes to about 30 minutes at room temperature, and can be snap cured.
    Type: Grant
    Filed: November 17, 2003
    Date of Patent: April 10, 2007
    Assignee: Huntsman International LLC
    Inventors: Evan H. Cheolas, Berend Eling, Ravi R. Joshi, Alan McClelland, Ajay Padsalgikar, Andreas H. Rothacker
  • Polyisocyanurate compositions and composites
    Publication number: 20040094859
    Abstract: Polyisocyanurate systems, pultrusion of those systems to produce reinforced polyisocyanurate matrix composites, and to composites produced thereby. The polyisocyanurate systems include a polyol component, an optional chain extender, and an isocyanate. The polyisocyanurate systems have extended initiation times of about 5 minutes to about 30 minutes at room temperature, and can be snap cured.
    Type: Application
    Filed: November 17, 2003
    Publication date: May 20, 2004
    Inventors: Evan H. Cheolas, Berend Eling, Ravi R. Joshi, Alan McClelland, Ajay Padsalgikar, Andreas H. Rothacker
  • Compatabilization of internal mold release agents
    Publication number: 20010005736
    Abstract: The disclosed invention relates to isocyanate reactive systems which have an internal mold release agents having improved stability. The isocyanate reactive system includes (1) at least one compound containing a plurality of isocyanate-reactive groups and (2) an internal mold release system comprising (a) a carboxylic acid and (b) a compound selected from the group consisting of a fatty polyester, a fatty acid ester and a fatty amide, and a surfactant selected rom the group consisting of ethoxylated alcohols, propoxylated alcohols or blends thereof.
    Type: Application
    Filed: January 22, 2001
    Publication date: June 28, 2001
    Inventor: Andreas H. Rothacker
  • Rigid polyurethane foams containing lithium salts for energy absorbing applications
    Patent number: 5453455
    Abstract: The present invention relates to using lithium salts of an organic material having 2 to 30 carbon atoms and at least one carboxylic acid in a rigid polyurethane formulation to produce foams having energy absorbing properties.
    Type: Grant
    Filed: May 3, 1993
    Date of Patent: September 26, 1995
    Assignee: BASF Corporation
    Inventors: David C. Krueger, Donald L. Christman, Andreas H. Rothacker, Thomas B. Lee
  • Rigid polyurethane foams containing lithium salts for energy absorbing applications
    Patent number: 5258416
    Abstract: The present invention relates to using lithium salts of an organic material having 2 to 30 carbon atoms and at least one carboxylic acid in a rigid polyurethane formulation to produce foams having energy absorbing properties.
    Type: Grant
    Filed: January 25, 1993
    Date of Patent: November 2, 1993
    Assignee: BASF Corporation
    Inventors: David C. Krueger, Donald L. Christman, Andreas H. Rothacker, Thomas B. Lee
  • Rigid polyurethane foams containing lithium salts for energy absorbing applications
    Patent number: 5248703
    Abstract: The present invention relates to using lithium salts of an organic material having 2 to 30 carbon atoms and at least one carboxylic acid in a rigid polyurethane formulation to produce foams having energy absorbing properties.
    Type: Grant
    Filed: March 13, 1992
    Date of Patent: September 28, 1993
    Assignee: BASF Corporation
    Inventors: David C. Krueger, Donald L. Christman, Andreas H. Rothacker, Thomas B. Lee