Patents by Inventor Ukiwo Obasi Onuoha

Ukiwo Obasi Onuoha 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).

  • Fire-retardant polyurethane systems
    Patent number: 6790906
    Abstract: A storage-stable moisture-curing one-component fire-retardant polyurethane system, useful as adhesive, sealant or coating material, comprising at least one hydrated mineral having a water-content of less than 0.1% and being treated with a moisture-reactive compound, and at least one binder on isocyanate basis. Such PU-systems preferably further comprise at least one phosphorus-containing compound, most preferably a phosphorus-containing plasticizer, which is preferably halogen-free. The binder on isocyanate basis has preferably an isocyanate content in the range of from 0.01 to 10% by weight referred to the total weight of the system.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: September 14, 2004
    Assignee: Sika Schweiz AG
    Inventors: Jöel Chaignon, Francois Adeleu, Jean-Marc Leleu, Peter Merz, Ukiwo Obasi Onuoha
  • Fire-retardant polyurethane systems
    Publication number: 20030220407
    Abstract: A storage-stable moisture-curing one-component fire-retardant polyurethane system, useful as adhesive, sealant or coating material, comprising at least one hydrated mineral having a water-content of less than 0.1% and being treated with a moisture-reactive compound, and at least one binder on isocyanate basis. Such PU-systems preferably further comprise at least one phosphorus-containing compound, most preferably a phosphorus-containing plasticizer, which is preferably halogen-free. The binder on isocyanate basis has preferably an isocyanate content in the range of from 0.01 to 10% by weight referred to the total weight of the system.
    Type: Application
    Filed: December 20, 2002
    Publication date: November 27, 2003
    Inventors: Joel Chaignon, Francois Adeleu, Jean-Marc Leleu, Peter Merz, Ukiwo Obasi Onuoha