Patents by Inventor Phillip T. Berkowitz

Phillip T. Berkowitz 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).

  • 1-hydroxy-6-substituted pyridine-2-ones and 1-hydroxy-6-substituted pyridine-2-thiones for biocidal use
    Patent number: 5675013
    Abstract: The present invention relates to novel 1-hydroxy-6-substituted pyridine-2-one and 1-hydroxy-6-substituted pyridine-2-thione compounds. Also disclosed is a process for producing the compound(s) and an antimicrobial composition comprising the compound(s) and at least one component selected from the group consisting of soaps, adhesives, coatings, elastomers, sealants, shampoos, skin care medicaments, cosmetics, paints and other polymer compositions.
    Type: Grant
    Filed: September 30, 1994
    Date of Patent: October 7, 1997
    Assignee: Olin Corporation
    Inventors: Rahim Hani, Phillip T. Berkowitz
  • 1-hydroxy-6-substituted-2-pyridones
    Patent number: 5424435
    Abstract: The present invention relates to novel 1-hydroxy-6-substituted-pyridone compounds. Also disclosed is a process for producing the compound(s) and an antimicrobial composition comprising the compound(s) and at least one component selected from the group consisting of soaps, adhesives, coatings, elastomers, sealants, shampoos, skin care medicaments, cosmetics, paints and other polymer compositions.
    Type: Grant
    Filed: October 18, 1993
    Date of Patent: June 13, 1995
    Assignee: Olin Corporation
    Inventors: Rahim Hani, Phillip T. Berkowitz
  • Process for making N-hydroxyl-2-thio-ouinazolin-4-ones
    Patent number: 5384405
    Abstract: The present invention relates to a composition comprising an antimicrobial effective amount of a biocide selected from the group consisting of aromatic 2-N-hydroxy-thiourea and N-hydroxy-quinazolinone, and derivatives and combinations thereof, and at least one component selected from the group consisting of soaps, shampoos, skin-care medicaments, cosmetics, plastics and paints. Also disclosed is a novel process for making the biocide.
    Type: Grant
    Filed: January 10, 1994
    Date of Patent: January 24, 1995
    Assignee: Olin Corporation
    Inventors: Rahim Hani, Phillip T. Berkowitz, John L. Peterson
  • Compositions comprising N-hydroxyquinazolinone and 2-N-hydroxythiourea benzoate compounds as biocides
    Patent number: 5298249
    Abstract: The present invention relates to a composition comprising an antimicrobial effective amount of a biocide selected from the group consisting of aromatic 2-N-hydroxy-thiourea and N-hydroxy-quinazolinone, and derivatives and combinations thereof, and at least one component selected from the group consisting of soaps, shampoos, skin-care medicaments, cosmetics, plastics and paints. Also disclosed is a novel process for making the biocide.
    Type: Grant
    Filed: October 4, 1991
    Date of Patent: March 29, 1994
    Assignee: Olin Corporation
    Inventors: Rahim Hani, Phillip T. Berkowitz, John L. Peterson
  • Stable, low viscosity polymer/polyisocyanate dispersion made using a macromolecular monomer and a functional monomer
    Patent number: 4792574
    Abstract: A stable, low viscosity polymer/polyisocyanate dispersion wherein the polymer is produced by polymerizing an ethylenically unsaturated macromolecular monomer, a functional monomer, and another ethylenically unsaturated monomer, together with a polyurethane foam, elastomer, adhesive, sealant, or coating produced therefrom and a method for fabricating the foam.
    Type: Grant
    Filed: January 25, 1988
    Date of Patent: December 20, 1988
    Assignee: Olin Corporation
    Inventor: Phillip T. Berkowitz
  • Stable, low viscosity polymer/polyisocyanate dispersion
    Patent number: 4695596
    Abstract: A stable, low viscosity polymer/polyisocyanate dispersion wherein the polymer is produced by polymerizing an ethylenically unsaturated macromolecular monomer with another ethylenically unsaturated monomer, together with a polyurethane foam, elastomer, adhesive, sealant, or coating produced therefrom and a method for fabricating the foam.
    Type: Grant
    Filed: August 28, 1986
    Date of Patent: September 22, 1987
    Assignee: Olin Corporation
    Inventor: Phillip T. Berkowitz
  • Process for trimerizing organic polyisocyanates
    Patent number: 4503226
    Abstract: A process for trimerizing organic polyisocyanates using a select catalyst comprising a quaternary ammonium carboxylic acid salt and a carboxylic acid halide or anhydride. The trimerization products are especially suitable for use in the preparation of polyurethane molding compositions.
    Type: Grant
    Filed: April 30, 1984
    Date of Patent: March 5, 1985
    Assignee: Olin Corporation
    Inventors: Kuo-Chang Tang, Phillip T. Berkowitz
  • Synthesis and polymerization of 3-azidooxetane
    Patent number: 4414384
    Abstract: 3-Azidooxetane, ##STR1## is prepared by reacting 3-oxetyl p-toluenesulfonate with an alkali metal azide in a polar solvent. In the presence of a Lewis acid catalyst, 3-azidooxetane polymerizes to form a poly(3-azidotrimethylene ether) of the formula ##STR2## which can be cured with diisocyanates to form energetic, rubbery polyurethanes.
    Type: Grant
    Filed: June 14, 1982
    Date of Patent: November 8, 1983
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Phillip T. Berkowitz, Kurt Baum, Vytautas Grakauskas
  • Synthesis of 3-hydroxyoxetane
    Patent number: 4395561
    Abstract: A process for preparing 3-hydroxyoxetane comprising the following steps in order(1) reacting a carboxylic acid of the formula CH.sub.3 (CH.sub.2).sub.
    Type: Grant
    Filed: May 14, 1982
    Date of Patent: July 26, 1983
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Kurt Baum, Vytautas Grakauskas, Phillip T. Berkowitz