Patents by Inventor Alistair J. Ross

Alistair J. Ross 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).

  • Blocked isocyanate crosslinkers based on pentaerythritol for use in thermosetting coatings
    Patent number: 5554692
    Abstract: The present invention concerns blocked isocyanate crosslinkers based on pentaerythritol for use in thermosetting coatings. More particularly, the invention pertains to thermosetting protective coatings containing a coreactive binder polymer comprising a hydroxyl functional matrix polymer adapted to coreact with a blocked isocyanate comprising pentaerythritol reacted with excess equivalents of isocyanate where excess isocyanate groups are blocked with a blocking agent. Pentaerythritol comprises between about 20% and 100% by weight of the polyol reactants reacted with excess isocyanate groups while the blocked crosslinker comprises between about 10% and 50% by weight of the thermosetting binder components. The preferred thermosetting coating is powder coating.
    Type: Grant
    Filed: January 6, 1994
    Date of Patent: September 10, 1996
    Assignee: Ferro Corporation
    Inventor: Alistair J. Ross
  • Thermosetting polyester coating
    Patent number: 4968775
    Abstract: An improved thermosetting coil coating composition contains a binder of a thermosetting polyester polymer particularly resistant to crystallization and adapted to be crosslinked with an aminoplast resin. The polyester comprises the condensation copolymer of 2-methyl-1,3-propane diol, neopentyl glycol, isophthalic acid, and terephthalic acid.
    Type: Grant
    Filed: April 12, 1990
    Date of Patent: November 6, 1990
    Assignee: The Glidden Company
    Inventors: Perry A. Toman, Alistair J. Ross