Patents by Inventor Howard H. Leiner

Howard H. Leiner 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).

  • Erodible ship-bottom paints for control of marine fouling
    Patent number: 4687792
    Abstract: A novel polymeric binder for use in an antifouling paint includes an acrylic or methacrylic ester monomer having selected substituted aryl or arylalkyl substituent groups in the ester moiety so that the ester is hydrolyzable at a suitable rate in seawater, and a copolymerizable ethylenically unsaturated monomer unit.
    Type: Grant
    Filed: January 29, 1985
    Date of Patent: August 18, 1987
    Assignee: M&T Chemicals Inc.
    Inventors: David B. Russell, Melvin H. Gitlitz, Howard H. Leiner, Mo A. Khuddus, Abe Berger
  • Erodible ship-bottom paints for control of marine fouling
    Patent number: 4594365
    Abstract: A novel polymeric binder for use in an antifouling paint includes an acrylic or methacrylic ester monomer having selected substituent groups in the ester moiety so that the ester is hydrolyzable at a suitable rate in seawater, and a copolymerizable ethylenically unsaturated monomer unit.
    Type: Grant
    Filed: January 17, 1984
    Date of Patent: June 10, 1986
    Assignee: M&T Chemicals Inc.
    Inventors: David B. Russell, Melvin H. Gitlitz, Howard H. Leiner, Mo A. Khuddus, Abe Berger
  • Erodible ship-bottom paints for control of marine fouling
    Patent number: 4593055
    Abstract: A film-forming, water insoluble seawater erodible antifouling paint is described which is characterized by including a hydrolyzable organosilyl acrylate copolymer therein.
    Type: Grant
    Filed: August 7, 1985
    Date of Patent: June 3, 1986
    Assignee: M&T Chemicals Inc.
    Inventors: Melvin H. Gitlitz, Howard H. Leiner
  • Erodible terpolymer from tributyl tin acrylate or methacrylate and paints for fouling control
    Patent number: 4532269
    Abstract: A novel polymeric binder for an antifouling paint includes greater than 2.5 to less than 25 mole percent of a unit from a tributyltin acrylate or methacrylate monomer group, an acrylic or methacrylic ester monomer unit having selected substituent groups in the ester moiety so that the ester is hydrolyzable at a suitable rate in seawater, and a copolymerizable ethylenically unsaturated monomer unit.The presence of the hydrolyzable ester group in the polymer binder of the present invention enables the paint to erode at a desired rate in seawater even with the low tin content in the polymer, thereby providing a desired low level of tin in solution and exposing a fresh paint surface periodically.
    Type: Grant
    Filed: March 23, 1984
    Date of Patent: July 30, 1985
    Assignee: M&T Chemicals Inc.
    Inventors: Melvin H. Gitlitz, David B. Russell, Howard H. Leiner
  • Catalyst composition and curable polymer compositions containing same
    Patent number: 4395528
    Abstract: A portion of the tin compounds conventionally employed to cure polymer compositions containing hydroxyl and isocyanate groups can be replaced by salts or chelated coordination complexes of divalent copper, zinc, nickel, iron, cobalt or vanadium without any substantial decrease in cure rate or solvent resistance of the cured coating.
    Type: Grant
    Filed: March 2, 1981
    Date of Patent: July 26, 1983
    Assignee: M&T Chemicals Inc.
    Inventors: Howard H. Leiner, Emily C. Bossert
  • Aqueous heat curable particulate coating composition of elastomeric emulsion copolymer and thermosetting copolymer
    Patent number: 4174336
    Abstract: Protective and decorative coatings for metal are prepared using aqueous polymer compositions consisting essentially of a thermosetting vinyl or acrylic polymer which has been polymerized in the presence of a preformed, crosslinked, elastomeric copolymer. The rate at which the monomers of the thermosetting polymer are added to the reaction mixture is substantially equal to the rate of reaction of these monomers to form the thermosetting polymer. This is believed to result in the formation of minute emulsified particles containing a core of the elastomeric copolymer surrounded by a layer of the thermosetting polymer. The thermosetting polymer contains pendant hydroxyl groups and a latent, heat-activated crosslinking agent.
    Type: Grant
    Filed: June 15, 1978
    Date of Patent: November 13, 1979
    Assignee: M & T Chemicals Inc.
    Inventors: Howard H. Leiner, Lee E. Koepke, Dennis R. Gelarden, John L. Gardon