Patents by Inventor Delphine Nwoko

Delphine Nwoko 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).

  • Colored peroxide and polyester formulations
    Publication number: 20060287420
    Abstract: Disclosed herein is a composition comprising: A) at least one component selected from the group consisting of: 1) unsaturated polyester resins; and 2) organic peroxide initiators; and B) and at least one dye that is compatible with any organic peroxide present and is selected from the group consisting of anthraquinone derivatives, pyrazalone derivatives, and mixtures thereof.
    Type: Application
    Filed: August 24, 2006
    Publication date: December 21, 2006
    Inventors: Delphine Nwoko, Peter Frenkel
  • Colored peroxide and polyester formulations
    Publication number: 20040092630
    Abstract: Disclosed herein is a composition comprising:
    Type: Application
    Filed: September 22, 2003
    Publication date: May 13, 2004
    Inventors: Delphine Nwoko, Peter Frenkel
  • Colored peroxide and polyester formulations
    Publication number: 20030027903
    Abstract: Disclosed herein is a composition comprising:
    Type: Application
    Filed: April 26, 2001
    Publication date: February 6, 2003
    Inventors: Delphine Nwoko, Peter Frenkel
  • Peroxyketals derived from cyclic beta-keto esters
    Patent number: 6362361
    Abstract: This invention relates to peroxyketals derived from cyclic &bgr;-keto esters and use of the same in the curing of resins, such as unsaturated polyester resins. The new peroxyketals were synthesized via an acid catalyzed reaction of cyclic &bgr;-keto esters with aliphatic hydroperoxides.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: March 26, 2002
    Assignee: Crompton Corporation
    Inventors: Delphine Nwoko, Michael Wells, Lawrence Bock
  • Heteropolyacids as catalysts for a synthesis of ketone peroxides
    Patent number: 6054625
    Abstract: The process of preparing geminal dihydroperoxy alkyl peroxides and 1,1-dihydroperoxydialkyl peroxides, which comprises reacting an aqueous composition comprising a ketone with hydrogen peroxide in the presence of a heteropolyacid.
    Type: Grant
    Filed: May 27, 1999
    Date of Patent: April 25, 2000
    Assignee: Witco Corporation
    Inventors: Peter Frenkel, Delphine Nwoko, Ted M. Pettijohn