Patents by Inventor Ronald Lee Amey

Ronald Lee Amey 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).

  • Publication number: 20040122258
    Abstract: Powder comprising particles of a curing agent selected from the group consisting of azelaic acid, sebacic acid, undecanedioic acid, dodecanedioic acid, brassylic acid and the anhydrides of said acids.
    Type: Application
    Filed: September 10, 2003
    Publication date: June 24, 2004
    Inventors: Ronald Lee Amey, George Alan Schurr
  • Patent number: 6677484
    Abstract: Powder comprising substantially spherical particles of at least one compound selected from the group consisting of azelaic acid, sebacic acid, undecanedioic acid, dodecanedioic acid, brassylic acid, and the anhydrides of said acids, said at least one compound being distributed substantially uniformly throughout the entirety of each of said particles, said particles having a particle size distribution as follows: d90 - d10 d50 < 1.90 wherein: d50 is a particle diameter at which 50% of the particles have diameters which are greater or smaller than the d50 value; d90 is a particle diameter at which 90% of the particles have diameters which are smaller than the d90 value; d10 is the particle diameter at which 10% of the particles have diameters which are smaller than the d10 value; and d50 is 8 to 30 micrometers.
    Type: Grant
    Filed: July 31, 2000
    Date of Patent: January 13, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Ronald Lee Amey, George Alan Schurr
  • Patent number: 6245946
    Abstract: Catalytic process for converting cyclododecane-1,2-dione to cyclododecanone.
    Type: Grant
    Filed: August 8, 2000
    Date of Patent: June 12, 2001
    Assignee: E.I. du Pont de Nemours and Company
    Inventor: Ronald Lee Amey
  • Patent number: 6057420
    Abstract: A process for lowering the amount of epichlorohydrin and related hydrolysis compounds contained in paper strength enhancing resins by treating an aqueous solution of the resin with an adsorbent.
    Type: Grant
    Filed: January 19, 1994
    Date of Patent: May 2, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Ronald Lee Amey
  • Patent number: 6056855
    Abstract: A process for lowering the amount of epichlorohydrin and related hydrolysis compounds contained in paper strength enhancing resins by treating an aqueous solution of the resin with an adsorbent.
    Type: Grant
    Filed: April 14, 1992
    Date of Patent: May 2, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Ronald Lee Amey
  • Patent number: 5800923
    Abstract: An acid composition comprises a polyvalent carboxylic acid solid particle coated with a polymer. The acid composition may function as a cross-linking agent in a powder coating, which also includes a resin. The resin and the polymer of the acid composition may be the same, or they may be different. The mean particle size of the coated acid solid particles is in the range of 0.5 to 50 micrometers. When used in a powder coating, such coated solid particles reduce or eliminate sublimation of the acid cross-linking agent from the powder coating during the curing step. In addition, these coated solid particles increase the storage shelf-life of the powder coating in which they are used. Such coated particles also improve the flow characteristics of the powder coating during curing thereof and the gloss and surface quality of the final cured coating.
    Type: Grant
    Filed: August 21, 1996
    Date of Patent: September 1, 1998
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Ronald Lee Amey, George Alan Schurr
  • Patent number: 5708176
    Abstract: The present invention is a process for the manufacture of 3,5-lutidine and 3-picoline from 2-methyl-1,5-pentanediamine by vapor phase reaction with hydrogen at about 400.degree.-500.degree. C. over an oxide catalyst.
    Type: Grant
    Filed: October 3, 1996
    Date of Patent: January 13, 1998
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Ronald Lee Amey