Patents by Inventor William D. Ray

William D. Ray 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).

  • High density polyethylene article with oxygen barrier properties
    Patent number: 5153039
    Abstract: An article of manufacture which includes a barrier layer formed of a high density polyethylene composition comprising:from about 50 to about 95 weight percent of high density polyethylene;from about 5 to 40 weight percent of polyisobutylene rubber; andfrom about 1 to about 30 weight percent of a filler selected from the group consisting of mica, talc and mixtures thereof,the barrier layer having excellent oxygen permeation resistance.The article of manufacture may be a mono- or multi-ply layer, such as a blow-molded bottle.
    Type: Grant
    Filed: December 9, 1991
    Date of Patent: October 6, 1992
    Assignee: Paxon Polymer Company, L.P.
    Inventors: Jay P. Porter, William D. Ray
  • High density polyethylene compositions
    Patent number: 5049441
    Abstract: A high density polyethylene composition comprising:from about 50 to about 95 weight percent of high density polyethylene;from about 5 to 40 weight percent of polyisobutylene rubber; andfrom about 1 to about 30 weight percent of a filler selected from the group consisting of mica, talc and mixtures thereof.Films made from the compositions have improved tear-resistance and puncture-resistance.
    Type: Grant
    Filed: January 19, 1990
    Date of Patent: September 17, 1991
    Assignee: Paxon Polymer Company, LP
    Inventors: Edwin A. Jenkins, Jay P. Porter, William D. Ray
  • High density polyethylene compositions containing polyisobutylene rubber and filler
    Patent number: 4911985
    Abstract: A high density polyethylene composition comprising:from about 50 to about 95 weight percent of high density polyethylene;from about 5 to 40 weight percent of polyisobutylene rubber; andfrom about 1 to about 30 weight percent of a filler selected from the group consisting of mica, talc and mixtures thereof.Films made from the compositions have improved tear-resistance and puncture-resistance.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: March 27, 1990
    Assignee: Allied-Signal Inc.
    Inventors: Edwin A. Jenkins, Jay P. Porter, William D. Ray