Patents by Inventor Lawrence S. Frankel

Lawrence S. Frankel 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).

  • Method for decreasing drying time
    Patent number: 5418013
    Abstract: A method for decreasing the drying time of a wet coating by admixing said wet coating and at least one transient colorant in an amount effective to decrease the drying time, applying the admixture to a substrate, and drying the coating, is provided. The transient colorant may be, for example, a pH-sensitive colorant or a photobleaching colorant.
    Type: Grant
    Filed: June 21, 1993
    Date of Patent: May 23, 1995
    Assignee: Rohm and Haas Company
    Inventors: George F. Detrick, Lawrence S. Frankel, Ernest R. Gommel, William A. Kirn
  • Modified latex polymer composition
    Patent number: 5252657
    Abstract: This invention relates to modified aqueous dispersions of water-insoluble latex polymer prepared by swelling an initial water-insoluble latex polymer, prepared by emulsion polymerization, with additional ethylenically unsaturated monomer, including at least one monomer with two or more sites of ethylenic unsaturation, and subsequently polymerizing the additional monomer within the swollen latex particles.
    Type: Grant
    Filed: February 2, 1993
    Date of Patent: October 12, 1993
    Assignee: Rohm and Haas Company
    Inventors: Lawrence S. Frankel, Gerald L. Jones, Donald A. Winey
  • Modified latex polymer compositions
    Patent number: 5227433
    Abstract: This invention relates to modified aqueous dispersions of water-insoluble latex polymer prepared by swelling an initial water-insoluble latex polymer, prepared by emulsion polymerization, with additional ethylenically unsaturated monomer, including at least one monomer with two or more sites of ethylenic unsaturation, and subsequently polymerizing the additional monomer within the swollen latex particles.
    Type: Grant
    Filed: February 24, 1992
    Date of Patent: July 13, 1993
    Assignee: Rohm and Haas Company
    Inventors: Lawrence S. Frankel, Gerald L. Jones, Donald A. Winey
  • Modified latex polymer compositions
    Patent number: 5093405
    Abstract: This invention relates to modified aqueous dispersions of water-insoluble latex polymer prepared by swelling an initial water-insoluble latex polymer, prepared by emulsion polymerization, with additional ethylenically unsaturated monomer, including at least one monomer with two or more sites of ethylenic unsaturation, and subsequently polymerizing the additional monomer within the swollen latex particles.
    Type: Grant
    Filed: January 9, 1989
    Date of Patent: March 3, 1992
    Assignee: Rohm and Haas Company
    Inventors: Lawrence S. Frankel, Gerald L. Jones, Donald A. Winey
  • Modified latex polymer composition
    Patent number: 4814373
    Abstract: This invention relates to modified aqueous dispersions of water-insoluble latex polymer prepared by swelling an initial water-insoluble latex polymer, prepared by emulsion polymerization, with additional ethylenically unsaturated monomer, including at least one monomer with two or more sites of ethylenic unsaturation, and subsequently polymerizing the additional monomer within the swollen latex particles.
    Type: Grant
    Filed: September 3, 1987
    Date of Patent: March 21, 1989
    Assignee: Rohm and Haas Company
    Inventors: Lawrence S. Frankel, Gerald L. Jones, Donald A. Winey
  • Uses of chelated metal catalysts for acid/epoxy polymer systems
    Patent number: 4237242
    Abstract: This application discloses a composition and a method for catalyzing and crosslinking of a polyepoxy compound and an acrylic resin containing carboxylic acid groups, the catalyst being in the form of a metal chelate, particularly of manganese, zinc or chromium. The compositions, when substantially freed of volatile solvent and adjusted to a viscosity resembling that of gunnable caulking compositions, are particularly well adapted as a replacement for the metallic body solder used in automobile manufacture to fill out imperfections, welded joints and the like, when applied thereto and cured.
    Type: Grant
    Filed: July 26, 1978
    Date of Patent: December 2, 1980
    Assignee: Rohm and Haas Company
    Inventor: Lawrence S. Frankel
  • Use of chelated metal catalysts for acid/epoxy polymer systems
    Patent number: 4131715
    Abstract: This application discloses a composition and a method for catalyzing and crosslinking of a polyepoxy compound and an acrylic resin containing carboxylic acid groups, the catalyst being in the form of a metal chelate, particularly of manganese, zinc or chromium. The compositions, when substantially freed of volatile solvent and adjusted to a viscosity resembling that of gunnable caulking compositions, are particularly well adapted as a replacement for the metallic body solder used in automobile manufacture to fill out imperfections, welded joints and the like, when applied thereto and cured.
    Type: Grant
    Filed: January 20, 1976
    Date of Patent: December 26, 1978
    Assignee: Rohm and Haas Company
    Inventor: Lawrence S. Frankel