Patents by Inventor John W. Gilmer

John W. Gilmer 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).

  • Polymer-clay nanocomposite comprising an amorphous oligomer
    Publication number: 20020119266
    Abstract: This invention is directed to a polymer-clay nanocomposite, products produced from the nanocomposite, and a process for preparing a polymer-clay nanocomposite. The polymer-clay nanocomposite comprises (a) a matrix polymer, (b) an amorphous oligomer, and (c) a layered clay material.
    Type: Application
    Filed: December 1, 2000
    Publication date: August 29, 2002
    Inventors: Shriram Bagrodia, Linda G. Bernard, Gary W. Connell, John W. Gilmer, Tie Lan, James C. Matayabas, Jeffrey T. Owens, Vasiliki Psihogios, Emerson E. Sharpe, Sam R. Turner
  • Rapidly crystallizing polyester molding compositions
    Patent number: 5414036
    Abstract: Molding compositions of thermoplastic polyesters and polymeric nucleating additives having pendant ionizable alkali metal phenolate groups. A process for increasing the crystallization rate and crystallization temperature of thermoplastic polyesters by incorporating into the polyesters the polymeric nucleating additives of the present invention.
    Type: Grant
    Filed: April 12, 1993
    Date of Patent: May 9, 1995
    Assignee: Enichem S.p.A.
    Inventor: John W. Gilmer
  • Fast-crystallizing polyester compositions
    Patent number: 5296521
    Abstract: The present invention relates to fast-crystallizing polyester compositions comprising: (a) a thermoplastic polyester resin; (b) a nucleating agent of the formula: ##STR1## wherein: R is an alkali or alkaline-earth metal; m is 1, 2 or 3; n takes an average value within the range of 1 to 5; said nucleating agent being optionally admixed with the compound of formula (I) wherein R is a hydrogen atom, linear alkyl radial or branched alkyl radical each having from 1 to 6 carbon atoms; with the proviso that at least 50% mole of said nucleating agent is in the salt form. This nucleating additive raises the crystallization temperature upon cooling (T.sub.cc) of the polyester so that crystallization occurs rapidly during molding.
    Type: Grant
    Filed: June 3, 1993
    Date of Patent: March 22, 1994
    Assignees: Istituto Guido Donegani S.P.A., Enichem Synthesis S.P.A.
    Inventors: John W. Gilmer, Gianluigi Landoni