Patents by Inventor James J. Keegan

James J. Keegan 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).

  • Patent number: 5011868
    Abstract: A denture adhesive base composition comprises a substantially anhydrous mixture of a cationic acrylamide polymer, sodium carboxymethylcellulose and ethylene oxide polymer. A denture adhesive composition including this base composition is provided. A method for formulating the novel denture adhesive base compositions and denture adhesive compositions of the invention is also disclosed.
    Type: Grant
    Filed: December 1, 1989
    Date of Patent: April 30, 1991
    Assignee: Warner-Lambert Company
    Inventor: James J. Keegan
  • Patent number: 5001170
    Abstract: A denture adhesive base composition comprises a substantially anhydrous mixture of methyl vinyl ethermaleic acid copolymer, polyvinyl pyrrolidone and ethylene oxide polymer. A denture adhesive composition including this base composition is also provided, the denture adhesive composition optionally including hydroxypropylcellulose. A method for formulating the novel denture adhesive base compositions and denture adhesive compositions of the invention is also disclosed.
    Type: Grant
    Filed: December 1, 1989
    Date of Patent: March 19, 1991
    Assignee: Warner-Lambert Company
    Inventor: James J. Keegan
  • Patent number: 4495314
    Abstract: A vehicle useful in a denture adhesive composition, and the denture adhesive composition containing such vehicle is disclosed. The vehicle comprises a gel consisting essentially of a mineral oil, a polyethylene wax and sorbitan monostearate in an amount of from about 0.25% to about 2.25% by weight of the gel. Preferably, the sorbitan monostearate is present in an amount of from about 0.5% to about 2.0% by weight. The gel may optionally contain up to about 10% by weight of polyisobutylene. The addition of sorbitan monostearate within the above amounts appears to lower the viscosity of the gels, and provides notable improvements in extrudability when the vehicle is employed in denture adhesive compositions.
    Type: Grant
    Filed: November 23, 1981
    Date of Patent: January 22, 1985
    Assignee: Warner-Lambert Company
    Inventor: James J. Keegan
  • Patent number: 4001151
    Abstract: Water-wettable anhydrous products, such as the powders and creams used in cosmetic and drug products, are admixed with 20% to 60% by weight, based on the weight of the total formulation, of a powdered polyethylene or powdered polypropylene polymer, to improve wettability characteristics. Denture adhesive powders prepared from an anionic/cationic adhesive combination, together with the powdered polyethylene or polypropylene polymer display particularly improved properties. The polyethylene or polypropylene polymer may also be admixed with other anhydrous products including dentifrices, vaginal powder sprays, and the like. Low molecular weight polyethylene powder, with an average molecular weight of from 1,000 to 3,500, is suitable for use in products of the invention. For the polypropylene, a molecular weight of from 120,000 to 350,000 is specified. The powdered polymers have a particle size of less than 422 microns.
    Type: Grant
    Filed: December 9, 1974
    Date of Patent: January 4, 1977
    Assignee: Warner-Lambert Company
    Inventors: James J. Keegan, Girish Patel, Howard Rubin
  • Patent number: 3936402
    Abstract: Water-wettable anhydrous products, such as the powders and creams used in cosmetic and drug products, are admixed with 20 to 60% by weight, based on the weight of the total formulation, of a powdered polyethylene or powdered polypropylene polymer, to improve wettability characteristics. Denture adhesive powders prepared from an anionic/cationic adhesive combination, together with the powdered polyethylene or polypropylene polymer display particularly improved properties. The polyethylene or polypropylene polymer may also be admixed with other anhydrous products including dentifrices, vaginal powder sprays, and the like. Low molecular weight polyethylene powder, with an average molecular weight of from 1,000 to 3,500, is suitable for use in products of the invention. For the polypropylene, a molecular weight of from 120,000 to 350,000 is specified. The powdered polymers have a particle size of less than 422 microns.
    Type: Grant
    Filed: December 9, 1974
    Date of Patent: February 3, 1976
    Assignee: Warner-Lambert Company
    Inventors: James J. Keegan, Girish Patel, Howard Rubin