Patents by Inventor Gregory Wayne

Gregory Wayne 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).

  • Process for producing polyester articles having low acetaldehyde content
    Patent number: 5648032
    Abstract: Disclosed is a process for producing molded polyester articles having a low acetaldehyde content bya) reacting a glycol and a dicarboxylic acid in the melt phase to form a polyester having an I.V. of about 0.65-0.85,b) solidifying and pelletizing said polyester,c) remelting said polyester in an extruder, and,d) forming said polyester into shaped articles, wherein the polyester is devolatilized during or following said polymerization in the melt, while it is being remelted, after remelting, or any combination by passing a purge gas over said molten polyester.
    Type: Grant
    Filed: August 1, 1995
    Date of Patent: July 15, 1997
    Assignee: Eastman Chemical Company
    Inventors: Gregory Wayne Nelson, Vincent Alvin Nicely
  • 2-Alkyl-1-naphthol-4-sulfonic acids
    Patent number: 4120897
    Abstract: Compounds of the formula ##STR1## wherein R is alkyl of 11 to 14 carbon atoms, andX is --SO.sub.3 H, --NO.sub.2 or --SO.sub.2 ClAre useful intermediates in the preparation of naphthoquinone miticides.
    Type: Grant
    Filed: June 14, 1977
    Date of Patent: October 17, 1978
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Gregory Wayne Schwing
  • 2-Alkyl-1-naphthol-4-sulfonic acids
    Patent number: 4049705
    Abstract: Compounds of the formula ##STR1## wherein R is alkyl of 11 to 14 carbon atoms, and X is --SO.sub.3 H, --NO.sub.2 or --SO.sub.2 ClAre useful intermediates in the preparation of naphthoquinone miticides.
    Type: Grant
    Filed: April 1, 1976
    Date of Patent: September 20, 1977
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Gregory Wayne Schwing