Patents by Inventor James Lamont

James Lamont 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).

  • Process for the production of carboxylic amides using alkyltin catalysts
    Patent number: 4277410
    Abstract: An improved process is provided for the amidation of carboxylic acids. For the process a carboxylic acid is reacted with ammonia gas at an elevated temperature and at atmospheric pressure or above in the presence of an alkyltin catalyst, preferably an alkyltin compound containing both hydroxyl and halo groups. High conversions are achieved with the process and the resulting products have low nitrile contents.
    Type: Grant
    Filed: May 2, 1980
    Date of Patent: July 7, 1981
    Assignee: Emery Industries, Inc.
    Inventors: Thomas Z. Li, James Lamont
  • Copolyesters useful in blood separation assemblies
    Patent number: 4148764
    Abstract: Copolyesters are provided which are derived from mixed dibasic acids and a branched-chain diol. These copolyesters possess a unique balance of physical and chemical characteristics which permits their use in small amounts in blood separation tubes to provide an effective barrier between the light and heavy phases of the blood after centrifuging.
    Type: Grant
    Filed: January 5, 1978
    Date of Patent: April 10, 1979
    Assignee: Emery Industries, Inc.
    Inventors: James Lamont, Robert J. Braun
  • Mixed-terminated polyester plasticizers
    Patent number: 4122057
    Abstract: Polyester plasticizers having improved low temperature properties are obtained by terminating the polyester with mixed chain-terminating agents. Mixtures of monobasic acids and monofunctional alcohols are employed for this purpose. The polyesters of this invention find particular utility as plasticizers for PVC homopolymers and copolymers.
    Type: Grant
    Filed: April 5, 1976
    Date of Patent: October 24, 1978
    Assignee: Emery Industries, Inc.
    Inventors: James Lamont, Robert D. Aylesworth, Bruce J. Beimesch
  • Copolyesters useful in blood separation assemblies
    Patent number: 4101422
    Abstract: Copolyesters are provided which are derived from mixed dibasic acids and a branched-chain diol. These copolyesters possess a unique balance of physical and chemical characteristics which permits their use in small amounts in blood separation tubes to provide an effective barrier between the light and heavy phases of the blood after centrifuging.
    Type: Grant
    Filed: May 11, 1977
    Date of Patent: July 18, 1978
    Assignee: Emery Industries, Inc.
    Inventors: James Lamont, Robert J. Braun