Patents by Inventor James G. Villanueva

James G. Villanueva 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).

  • Polyamide having improved gas barrier properties from adipic acid, isophthalic acid and m-xylylene diamine
    Patent number: 5175238
    Abstract: A polyamide composition comprising the following recurring units: ##STR1## in proportions such that the mole ratio of the dicarboxylic acid moieties in the A, B and C units is about 49.5-0.5/0-20/0.5-49.5 and wherein R is a divalent radical comprising ##STR2## in a mole ratio of about 0.5-50/49.5-0 and preferably having a glass transition temperature of 90.degree. C. or greater and an oxygen transmission rate of about 2.0 cc-mil/100 in.sup.2 -day-atm or less.
    Type: Grant
    Filed: August 30, 1990
    Date of Patent: December 29, 1992
    Assignee: Amoco Corporation
    Inventors: John D. Matlack, James G. Villanueva, Bruce A. Newman, Lawrence D. Lillwitz, Melvin L. Luetkens, Jr., Gregory E. Schmidt
  • Molded bottles and method of producing same
    Patent number: 5028462
    Abstract: Plastic bottles and a process for producing same in which at least one layer comprises a polyamide composition comprising isophthalic acid, terephthalic acid, adipic acid, metaxylylenediamine and hexamethylenediamine moieties in a molar ratio of about 49.5-0.5/0-20/0.5-49.5/0.5-50/49.5-0.
    Type: Grant
    Filed: July 21, 1989
    Date of Patent: July 2, 1991
    Assignee: Amoco Corporation
    Inventors: John D. Matlack, James G. Villanueva, Bruce A. Newman, Lawrence D. Lillwitz, Melvin L. Luetkens, Jr.
  • Apparatus for coating containers
    Patent number: 4632053
    Abstract: A method for treating plastic containers with a resin to improve barrier properties thereof including conditioning with an ionizing gas, dipping container in latex of barrier resin and drying container including removing drop from bottom thereof. Apparatus for carrying out the process is shown.
    Type: Grant
    Filed: July 12, 1985
    Date of Patent: December 30, 1986
    Assignee: Amoco Corporation
    Inventors: James G. Villanueva, John D. Matlack, Shelton E. Lewis, John F. E. Pocock, Charles A. Cole
  • Method for coating containers
    Patent number: 4534995
    Abstract: A method for treating plastic containers with a resin to improve barrier properties thereof including conditioning with an ionizing gas, dipping container in latex of barrier resin and drying container including removing drop from bottom thereof. Apparatus for carrying out the process is shown.
    Type: Grant
    Filed: April 5, 1984
    Date of Patent: August 13, 1985
    Assignee: Standard Oil Company (Indiana)
    Inventors: John F. E. Pocock, Charles A. Cole, James G. Villanueva, John D. Matlack, Shelton E. Lewis