Patents by Inventor Evan H. Cheolas

Evan H. Cheolas 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).

  • Pultrusion process
    Patent number: 7507361
    Abstract: Polyisocyanate-based reaction systems, a pultrusion process of those systems to produce reinforced matrix composites, and to composites produced thereby. The polyisocyanate-based systems are mixing activated reaction systems that include a polyol composition, an optional chain extender or crosslinker, and a polyisocyanate. The polyisocyanate-based systems exhibit improved processing characteristics in the manufacture of fiber reinforced thermoset composites via reactive pultrusion.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: March 24, 2009
    Assignee: Huntsman International LLC
    Inventors: Ravi R. Joshi, Evan H. Cheolas
  • 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
  • Pultrusion systems and process
    Patent number: 7056976
    Abstract: Polyisocyanate-based reaction systems, a pultrusion process of those systems to produce reinforced matrix composites, and to composites produced thereby. The polyisocyanate-based systems are mixing activated reaction systems that include a polyol composition, an optional chain extender or crosslinker, and a polyisocyanate. The polyisocyanate-based systems exhibit improved processing characteristics in the manufacture of fiber reinforced thermoset composites via reactive pultrusion.
    Type: Grant
    Filed: July 25, 2003
    Date of Patent: June 6, 2006
    Assignee: Huntsman International LLC
    Inventors: Ravi R. Joshi, Evan H. Cheolas
  • Polyisocyanurate compositions and composites
    Patent number: 6793855
    Abstract: The invention relates to 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: May 16, 2001
    Date of Patent: September 21, 2004
    Assignee: Huntsman International LLC
    Inventors: Evan H. Cheolas, Berend Eling, Ravi R Joshi
  • Pultrusion systems and process
    Publication number: 20040106726
    Abstract: Polyisocyanate-based reaction systems, a pultrusion process of those systems to produce reinforced matrix composites, and to composites produced thereby. The polyisocyanate-based systems are mixing activated reaction systems that include a polyol composition, an optional chain extender or crosslinker, and a polyisocyanate. The polyisocyanate-based systems exhibit improved processing characteristics in the manufacture of fiber reinforced thermoset composites via reactive pultrusion.
    Type: Application
    Filed: July 25, 2003
    Publication date: June 3, 2004
    Inventors: Ravi R. Joshi, Evan H. Cheolas
  • 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
  • Polyisocyanurate compositions and composites
    Publication number: 20020045690
    Abstract: The invention relates to 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: May 16, 2001
    Publication date: April 18, 2002
    Inventors: Evan H. Cheolas, Berend Eling, Ravi R. Joshi