Patents by Inventor Ackah Toffey

Ackah Toffey 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).

  • Compositions comprising solvated aromatic amines and methods for the preparation thereof
    Patent number: 8748540
    Abstract: The present invention provides a composition comprising a solvated aromatic amine and a liquid carrier, wherein said solvated aromatic amine is the reaction product of an aromatic amine and at least one of any anhydride, an isocyanate or an acid in the liquid carrier. The present invention also provides a method of preparing a composition comprising a solvated aromatic amine and a liquid carrier, said method comprising the steps of providing a reaction mixture comprising: a) an aromatic amine; b) at least one of an anhydride, an isocyanate or an acid; and c) a liquid carrier; and heating the reaction mixture at an elevated temperature to provide the solvated aromatic amine in the liquid carriers. The present invention further provides the use of the compositions for the preparation of the curable compounds and for gasoline resistant coatings.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: June 10, 2014
    Assignee: Crosslink Technology, Inc
    Inventors: John Ulcar, Ackah Toffey
  • Compositions Comprising Solvated Aromatic Amines and Methods for the Preparation Thereof
    Publication number: 20120040094
    Abstract: The present invention provides a composition comprising a solvated aromatic amine and a liquid carrier, wherein said solvated aromatic amine is the reaction product of an aromatic amine and at least one of any anhydride, an isocyanate or an acid in the liquid carrier. The present invention also provides a method of preparing a composition comprising a solvated aromatic amine and a liquid carrier, said method comprising the steps of providing a reaction mixture comprising: a) an aromatic amine; b) at least one of an anhydride, an isocyanate or an acid; and c) a liquid carrier; and heating the reaction mixture at an elevated temperature to provide the solvated aromatic amine in the liquid carriers. The present invention further provides the use of the compositions for the preparation of the curable compounds and for gasoline resistant coatings.
    Type: Application
    Filed: April 16, 2010
    Publication date: February 16, 2012
    Applicant: CROSSLINK TECHNOLOGY, INC.
    Inventors: John Ulcar, Ackah Toffey
  • Chitin-based coatings
    Patent number: 5900479
    Abstract: A chitosan starting material is combined with a dilute organic acid to produce a chitosonium ion complex. The chitosonium ion complex is then cast, sprayed, extruded, or otherwise processed to produce filaments, coatings, fibers, or the like. Heat is then used to convert the chitosonium ion complex into a N-(C.sub.1-30)acyl glucose amine polymer.
    Type: Grant
    Filed: May 5, 1995
    Date of Patent: May 4, 1999
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: Wolfgang G. Glasser, Gamini Samaranayake, Ackah Toffey