Patents Assigned to Howard I. Podell
  • Patent number: 4575476
    Abstract: A skin-contacting lubricating layer formed from a hydrogel polymer bonded to a rubber article (such as a surgeon's glove) is treated by means of surfactant material (such as a bactericidal cationic surfactant which preferably has a 6-18C alkyl or alkenyl group, such as an N-hexadecyl group) or a long chain fatty amine so as to substantially improve the lubricity of the layer with respect to damp skin.The hydrogel polymer is preferably a copolymer of 2-hydroxyethylmethacrylate (HEMA) with methacrylic acid (MAA) or with 2-ethylhexyl acrylate (EHA) or with both MAA and EHA. Such a hydrogel polymer has improved lubricity to dry skin and, if used for this purpose, need not be treated with a surfactant or fatty amine to improve the lubricity with respect to damp skin.
    Type: Grant
    Filed: November 28, 1983
    Date of Patent: March 11, 1986
    Assignee: Howard I. Podell
    Inventors: Howard I. Podell, Albert Goldstein, David C. Blackley, Michael H. James, David M. Bratby, Roger Duck
  • Patent number: 4548844
    Abstract: There is provided a flexible rubber or article having a coating of a hydrophilic hydrogel polymer. The coating is applied to at least one surface of the article prior to heat vulcanization of the article and prior to curing of the polymer to impart lubricant and moisture transmission properties after vulcanization and curing thereof. A solution of a trivalent cationic salt may be applied to the article prior to or simultaneously with the application of the polymer so as to provide for improved adhesion of the polymer to the article after curing. A powderless solution of an emulsion or a surfactant is applied to the article after curing to reduce the surface tack of both the surface of the article which has been coated by the polymer and the surface opposite such polymer-coated surface.
    Type: Grant
    Filed: February 11, 1985
    Date of Patent: October 22, 1985
    Assignee: Howard I. Podell
    Inventors: Howard I. Podell, Albert Goldstein