Patents by Inventor Duncan A. MacKillop

Duncan A. MacKillop 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).

  • Elastomeric film products with improved chemical resistance
    Patent number: 5284157
    Abstract: A latex film product such as a prophylactic condom, a surgical glove, a medical examination glove, and the like, having improved chemical resistance, such product comprising a shaped film consisting essentially of a cured mixture of (a) a copolymer of acrylonitrile and butadiene or isoprene, and (b) a high styrene content styrene-butadiene copolymer.
    Type: Grant
    Filed: July 26, 1991
    Date of Patent: February 8, 1994
    Assignee: Ortho Pharmaceutical Corporation
    Inventors: Robert G. Miller, Oskar Tankovitz, Duncan A. Mackillop
  • Natural rubber latex film products with improved tear resistance
    Patent number: 5039750
    Abstract: Natural rubber latex compounds are modified by the addition of a high styrene content styrene-butadiene copolymer. The films prepared from these modified NR latex compositions exhibit improved tear strength and a good balance of other properties.
    Type: Grant
    Filed: July 25, 1990
    Date of Patent: August 13, 1991
    Assignee: Ortho Pharmaceutical Ltd.
    Inventors: Robert G. Miller, Duncan A. MacKillop, Oskar T. Tankovitz
  • Natural rubber latex film products with improved tear resistance
    Patent number: 4963623
    Abstract: Natural rubber latex compounds are modified by the addition of a high styrene content styrene-butadiene copolymer. The films prepared from these modified NR latex compositions exhibit improved tear strength and a good balance of other properties.
    Type: Grant
    Filed: January 11, 1989
    Date of Patent: October 16, 1990
    Assignee: Ortho Pharmaceutical (Canada) Ltd.
    Inventors: Robert G. Miller, Duncan A. MacKillop, Oskar T. Tankovitz