Patents by Inventor S. Thomas Greer

S. Thomas Greer 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).

  • Patent number: 4944892
    Abstract: A non-film forming, aqueous composition is disclosed for cleaning and for killing and inhibiting the regrowth of fungi and algae on a solid surface. The composition comprises a water-insoluble compound selected from the group consisting of a fungicide, an algicide and a mixture thereof dispersed in the composition, a detergent, a thickener, an oxidizing agent and water. Also disclosed is the composition in a two package form in which the oxidizing agent and at least a portion of the water are in one package, and the fungicide, algicide or mixture thereof, the detergent, the thickener, and optionally a portion of the water are in another package.Also disclosed is a process for cleaning a solid surface with the aqueous composition.
    Type: Grant
    Filed: September 30, 1988
    Date of Patent: July 31, 1990
    Assignee: PPG Industries, Inc.
    Inventors: Amy Z. Leathers, S. Thomas Greer
  • Patent number: 4844952
    Abstract: A method of forming a multilayered finish on a substrate involves:I. applying a decorative finish to a substrate:II. applying a clear, aqueous based coating composition over the decorative finish of step I, said clear coating composition containing:(a) a waterborne polymer having calculated a glass transition temperature of at least about 40.degree. C. and having a one component working parameter of solubility, .delta. wp, in the range of about 9.0 to about 9.6 (cal./cm.sup.3).sup.1/2, with ##EQU1##whereinFi=the molar attraction constant of an individual functional group of the polymer expressed in cal..sup.1/2 cm.sup.3/2 /mole, andVi=the molar volume constant of an individual group of the polymer expressed in cubic cubic centimeters per mole; and(b) an amount of coalescing component sufficient to form a coalesced film, said clearcoating composition being essentially free of external crosslinking agents; andIII. allowing the coating composition to coalesce.
    Type: Grant
    Filed: December 30, 1987
    Date of Patent: July 4, 1989
    Assignee: PPG Industries, Inc.
    Inventors: Stephen M. Korenkiewicz, Kurt G. Olson, William G. Boberski, Suryya K. Das, S. Thomas Greer, Raymond E. Zaleski
  • Patent number: 4806263
    Abstract: A non-film forming, aqueous composition is disclosed for cleaning and for killing and inhibiting the regrowth of fungi and algae on a solid surface. The composition comprises a water-insoluble compound selected from the group consisting of a fungicide, an algicide and a mixture thereof dispersed in the composition, a detergent, a thickener, an oxidizing agent and water. Also disclosed is the composition in a two package form in which the oxidizing agent and at least a portion of the water are in one package, and the fungicide, algicide or mixture thereof, the detergent, the thickener, and optionally a portion of the water are in another package.Also disclosed is a process for cleaning a solid surface with the aqueous composition.
    Type: Grant
    Filed: May 7, 1987
    Date of Patent: February 21, 1989
    Assignee: PPG Industries, Inc.
    Inventors: Amy Z. Leathers, S. Thomas Greer
  • Patent number: 4466151
    Abstract: Coating compositions can be applied to substrates to produce a smooth finish by the use of a coating applicator having a mat of sized glass fibers and/or strands having fibers and/or strands projecting from the surface of the mat. The coating applicator has a core with two surfaces, a mat of sized glass fibers with projecting fibers and/or strands attached to one surface of the core. The glass fibers within the strands have a residue of a sizing composition having a carrier, a film forming polymer, and compatible coupling agent. The glass fibers within the strand may be selected from bulked, texturized, hollow, hollow with etching and solid continuous and staple glass fibers and mixtures thereof. The thickness of the mat on the core to comprise the applicator is in the range of about 0.125 to about 2 inches (3 to 50 mm.).
    Type: Grant
    Filed: June 30, 1982
    Date of Patent: August 21, 1984
    Assignee: PPG Industries, Inc.
    Inventors: Herbert W. Barch, Emil Martin, S. Thomas Greer
  • Patent number: 4434521
    Abstract: Coating compositions can be applied to substrates to produce a novelty finish by the use of a coating applicator having a mat of sized glass fibers and/or strands in contact with the coating. The novelty finish achieved with the glass fiber strand coating applicator has continuity of pattern, which is achieved in a fascile and efficient manner. The coating applicator has a core with an inner and outer surface and mat of sized glass fiber attached to the outer surface. The glass fibers have a residue of a sizing composition having a carrier, a film forming polymer, and compatible coupling agent. The one or more glass fibers may be selected from bulked, texturized, hollow, hollow with etching and solid continuous and staple glass fibers and mixtures thereof. The thickness of the mat on the core to comprise the applicator is in the range of about 0.125 to about 2 inches (3 to 50 mm.).
    Type: Grant
    Filed: June 30, 1982
    Date of Patent: March 6, 1984
    Assignee: PPG Industries, Inc.
    Inventors: Emil Martin, Herbert W. Barch, S. Thomas Greer
  • Patent number: 4228893
    Abstract: Disclosed is a method to inhibit the formation of a paint-product skin on the interior surface of the lid of a closed upright vessel housing a paint composition wherein a portion of said composition is volatile. The method comprises delivering said paint composition to an upright, open vessel closeable at its top with a lid; delivering a sufficient quantity of a barrier material to the open vessel to provide a covering layer of the barrier material for the top of the paint composition; and closing the open vessel at its top with a lid. The barrier material is characterized as (1) less dense than the paint composition; (2) containing a volatile portion whose volatility is at least substantially equivalent to the volatility of the volatile portion of the paint composition; and (3) sufficiently compatible with the paint composition to become a mixed non-detrimental component thereof upon adequate mixing therewith.
    Type: Grant
    Filed: April 2, 1979
    Date of Patent: October 21, 1980
    Assignee: PPG Industries, Inc.
    Inventors: Kenneth Franklin, William S. Rosenthal, S. Thomas Greer