Patents by Inventor Mark A. Harley

Mark A. Harley 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).

  • Process for treating cellulosic materials with stable aqueous dispersions containing silanes
    Patent number: 5413867
    Abstract: A stable aqueous dispersion having a particle size in the range of about 10 to 200 nanometers containing specific silanes carrying at least one hydrophobic moiety and at least one water-solubilizing moiety is used in a process for treating a cellulosic substrate resulting in a treated product. The aqueous dispersions used in treating the cellulosic substrate are stable for at least 20 days without externally added surfactant.
    Type: Grant
    Filed: May 31, 1994
    Date of Patent: May 9, 1995
    Assignee: PPG Industries, Inc.
    Inventors: Wen-Hsuan Chang, John F. Grunewalder, Mark A. Harley, Edward E. McEntire
  • Silanes carrying water-solubilizing and hydrophobic moieties
    Patent number: 5354881
    Abstract: New organic silanes are claimed carrying at least one water-solubilizing moiety and at least one hydrophobic group suitable for preparing stable solutions or dispersions containing in excess of about five weight percent of such silanes.
    Type: Grant
    Filed: October 15, 1991
    Date of Patent: October 11, 1994
    Assignee: PPG Industries, Inc.
    Inventors: Wen-Hsuan Chang, John F. Grunewalder, Mark A. Harley, Edward E. McEntire
  • Stable aqueous dispersions containing siloxanes for treating cellulosic material
    Patent number: 5354832
    Abstract: A stable aqueous dispersion having a particle size in the range of about 10 to about 200 nanometers containing specific silanes carrying at least one hydrophobic moiety and at least one water-solubilizing moiety is claimed along with the process for treating a cellulosic substrate and the treated cellulosic product resulting therefrom. The aqueous dispersions are stable for at least 20 days without externally added surfactant.
    Type: Grant
    Filed: April 16, 1993
    Date of Patent: October 11, 1994
    Assignee: PPG Industries, Inc.
    Inventors: Wen-Hsuan Chang, John F. Grunewalder, Mark A. Harley, Edward E. McEntire
  • Fluoropolymer blend for coextrusion onto thermoplastic substrates
    Patent number: 5322899
    Abstract: Adhesion of fluoropolymer capstock layer to thermoplastic substrates such as polyvinyl chloride is achieved without the need for an intermediate adhesive layer while maintaining adequate impact resistance and processing properties by blending with the fluoropolymer a selected combination of acrylic polymers. The fluoropolymer-acrylic polymer blend includes a first acrylic polymer having a major methyl methacrylate monomeric component and a second acrylic polymer having a major ethyl methacrylate component.
    Type: Grant
    Filed: July 21, 1992
    Date of Patent: June 21, 1994
    Assignee: PPG Industries, Inc.
    Inventors: John F. Grunewalder, Mark A. Harley
  • Transparent coating system for providing long term exterior durability to wood
    Patent number: 4913972
    Abstract: Disclosed is a method for providing a wood substrate with durability against weathering comprising at least two steps (A) and (B). Step (A) consists of appying to the wood substrate a transparent treatment comprising an organosilicon-containing compound having at least one hydrolyzable silyl group in a carrier for said compound. Step (B) consists of thereafter coating the wood substrate with a transparent, film-forming, coating composition. The coating composition is characterized in that a transparent free film from the coating composition retains an elongation of at least 20 percent after at least 1,000 hours exposure in a Xenon Weatherometer.
    Type: Grant
    Filed: February 23, 1989
    Date of Patent: April 3, 1990
    Assignee: PPG Industries, Inc.
    Inventors: John F. Grunewalder, Mark A. Harley, Alan J. Kaylo, Paul J. Prucnal