Patents by Inventor Samuel Porter, Jr.

Samuel Porter, Jr. 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: 4988766
    Abstract: Hydroxyl-containing polymers prepared by reaction of a polymerizable alpha, beta-ethylenically unsaturated carboxylic acid and an epoxy compound containing greater than 5 carbon atoms are disclosed. The polymer is prepared by free radical organic solution polymerization techniques. Synthesis of the polymers by this technique assures multiple hydroxyl functionality in all polymer chains thereby providing good cure response. The polymers are useful as binders in high solids coating compositions. When used with appropriate curing agents, the resultant coatings have good hardness, high gloss and distinctness of image, have good solvent and humidity resistance and are very resistant to acid etching.
    Type: Grant
    Filed: September 20, 1988
    Date of Patent: January 29, 1991
    Assignee: PPG Industries, Inc.
    Inventors: Suryya K. Das, Samuel Porter, Jr., Wayne H. Tyger
  • Patent number: 4917955
    Abstract: There is disclosed herein a composite coating comprising a colored base coat over which is applied a clear top coat, the improvement comprising the base coat which comprises a liquid crosslinkable composition comprising a polyepoxide and a polyacid curing agent; said composition is characterized in that it is substantially free of a cure catalyst, and the top coat comprises a cure catalyst system in an amount sufficient to cure both the base coat and the top coat.
    Type: Grant
    Filed: July 13, 1987
    Date of Patent: April 17, 1990
    Assignee: PPG Industries, Inc.
    Inventors: Samuel Porter, Jr., Dennis A. Simpson, William P. Blackburn, Mark E. Endlish
  • Patent number: 4859743
    Abstract: A high solids coating composition having a total solids content of at least 40 percent contains as a film former a urethane vehicle having a hydroxyl value of at least about 50 and a number average molecular weight of no more than 4,000 which is prepared from reactants containing a hydroxyl functional polyether or polyester or mixtures thereof of a molecular weight less than 1,000 and average functionality not exceeding 3 and at least 10 weight percent based on the total weight of hydroxyl functional polyether or polyester or mixtures thereof and polyisocyanate of a polyisocyanate having isocyanate groups separated by one or more hydrophobic moieties, each moiety containing at least 12 consecutive carbon atoms in a continuous chain; and an aminoplast crosslinking agent.
    Type: Grant
    Filed: June 22, 1988
    Date of Patent: August 22, 1989
    Assignee: PPG Industries, Inc.
    Inventors: Ronald R. Ambrose, James B. O'Dwyer, Byron K. Johnston, David P. Zielinski, Samuel Porter, Jr., Wayne H. Tyger
  • Patent number: 4849283
    Abstract: A color plus clear composite coating and process are disclosed. A pigmented or colored base coat is first applied to a substrate followed by the application of a transparent top coat to the base coat. The base coat composition is a liquid crosslinkable composition comprising a polyepoxide and a polyacid curing agent which comprises a half ester formed from reacting an acid anhydride with a polyol. The top coat composition is a powder coating. The resultant composite coating exhibits improved distinctness of image, making the composite coating particularly useful as an automotive top coat.
    Type: Grant
    Filed: July 16, 1987
    Date of Patent: July 18, 1989
    Assignee: PPG Industries, Inc.
    Inventors: Samuel Porter, Jr., Dennis A. Simpson, William P. Blackburn
  • Patent number: 4818796
    Abstract: Hydroxyl-containing polymers prepared by reaction of a polymerizable alpha, beta-ethylenically unsaturated carboxylic acid and an epoxy compound containing greater than 5 carbon atoms are disclosed. The polymer is prepared by free radical organic solution polymerization techniques. Synthesis of the polymers by this technique assures multiple hydroxyl functionality in all polymer chains thereby providing good cure response. The polymers are useful as binders in high solids coating compositions. When used with appropriate curing agents, the resultant coatings have good hardness, high gloss and distinctness of image, have good solvent and humidity resistance and are very resistant to acid etching.Preferred reactants are:(a) an alpha, beta ethylenically unsaturated carboxylic acid and(b) a glycidyl ester of the formula ##STR1## where R=a tertiary aliphatic hydrocarbon group of 4 to 26 carbon atoms.
    Type: Grant
    Filed: May 13, 1987
    Date of Patent: April 4, 1989
    Assignee: PPG Industries, Inc.
    Inventors: Suryya K. Das, Samuel Porter, Jr., Wayne H. Tyger
  • Patent number: 4808656
    Abstract: A curable high solids coating composition containing a reactive acrylic polymer formed from polymerizing an alpha, beta-ethylenically unsaturated monomer containing a functional group such as a hydroxyl group and other non-functional alpha, beta-ethylenically unsaturated monomers is disclosed. The polymer is prepared by organic solution polymerization techniques in an organic solvent and in the presence of t-amylperoxy compound and a 2,4-diaryl-1-alkene. The coating compositions are particularly useful as coatings for automobiles where they can be deposited as non-yellowing clear coats.
    Type: Grant
    Filed: May 4, 1987
    Date of Patent: February 28, 1989
    Assignee: PPG Industries, Inc.
    Inventors: Charles M. Kania, Samuel Porter, Jr.
  • Patent number: 4755582
    Abstract: Disclosed herein are high solids thermosetting coating compositions comprising hydroxy-functional polyepoxides and anhydrides as effective curing agents thereof. Films of these coating compositions are of remarkable appearance and are attended by remarkably low volatile organic content (VOC).
    Type: Grant
    Filed: August 21, 1986
    Date of Patent: July 5, 1988
    Assignee: PPG Industries, Inc.
    Inventors: William P. Blackburn, Ronald R. Ambrose, Samuel Porter, Jr., Mary J. Burkholder
  • Patent number: 4755581
    Abstract: Disclosed herein are high solids thermosetting coating compositions comprising polyepoxides and anhydrides as effective curing agents therefor. Films from these coating compositions are of remarkable appearance and are attended by remarkably low volatile organic content (VOC).
    Type: Grant
    Filed: August 21, 1986
    Date of Patent: July 5, 1988
    Assignee: PPG Industries, Inc.
    Inventors: William P. Blackburn, Ronald R. Ambrose, Samuel Porter, Jr., Mary Jo Burkholder
  • Patent number: 4749743
    Abstract: Disclosed herein is a low molecular weight epoxy-functional polyurethane and high solids thermosetting coating compositions prepared therewith.
    Type: Grant
    Filed: October 6, 1986
    Date of Patent: June 7, 1988
    Assignee: PPG Industries, Inc.
    Inventors: Ronald R. Ambrose, Samuel Porter, Jr.
  • Patent number: 4737403
    Abstract: A method of coating a fiber-reinforced plastic substrate is disclosed. The method comprises the application of a primer coat directly to the fiber-reinforced plastic substrate. The primer is an organic resinous composition comprising a polyepoxide and a polyacid curing agent. A topcoat is then applied to the primer coat. The composite coating using the polyepoxide-polyacid primer provides for coated fiber-reinforced plastic substrates with excellent appearance as well as good chip resistance and adhesion, as well as tolerance to overbaking conditions.
    Type: Grant
    Filed: April 3, 1987
    Date of Patent: April 12, 1988
    Assignee: PPG Industries, Inc.
    Inventors: Dennis A. Simpson, Samuel Porter, Jr.
  • Patent number: 4732791
    Abstract: Disclosed herein is an improved process of preparing color-plus-clear coatings, the improvement comprising high solids thermosetting coating compositions comprising polyepoxides and anhydrides as effective curing agents therefor. Films from these coating compositions are of remarkable appearance and are attended by remarkably low volatile organic content (VOC).
    Type: Grant
    Filed: August 21, 1986
    Date of Patent: March 22, 1988
    Assignee: PPG Industries, Inc.
    Inventors: William P. Blackburn, Ronald R. Ambrose, Samuel Porter, Jr., Mary J. Burkholder
  • Patent number: 4732790
    Abstract: Disclosed herein is an improved process for preparing color-plus-clear coatings, the improvement comprising high solids thermosetting coating compositions comprising hydroxy-functional polyepoxides and anhydrides as effective curing agents therefor. Films of these coating compositions are of remarkable appearance and are attended by remarkably low volatile organic content (VOC).
    Type: Grant
    Filed: August 21, 1986
    Date of Patent: March 22, 1988
    Assignee: PPG Industries, Inc.
    Inventors: William P. Blackburn, Ronald R. Ambrose, Samuel Porter, Jr., Mary Jo Burkholder
  • Patent number: 4719132
    Abstract: A process for producing multi-layered coated articles is disclosed. The process comprises applying a pigment containing aqueous polyurethane film-forming composition to a substrate to form a basecoat followed by the application of a transparent topcoat to the basecoat.
    Type: Grant
    Filed: April 29, 1987
    Date of Patent: January 12, 1988
    Assignee: PPG Industries, Inc.
    Inventor: Samuel Porter, Jr.
  • Patent number: 4699814
    Abstract: Disclosed herein is an improved process of preparing color-plus-clear coatings, the improvement comprising an epoxy-functional polyurethane resin and high solids thermosetting coating compositions prepared therewith.
    Type: Grant
    Filed: October 6, 1986
    Date of Patent: October 13, 1987
    Assignee: PPG Industries, Inc.
    Inventors: Ronald R. Ambrose, William P. Blackburn, Samuel Porter, Jr., Nancy J. Waite
  • Patent number: 4620993
    Abstract: Disclosed is a method for coating a substrate comprising the steps of: (A) coating the substrate with one or more applications of a basecoating composition comprising (1) an organic film-forming resin, (2) a solvent system for the film-forming resin, (3) an organo-modified clay and organic polymer microparticles both of which are undissolved in the solvent system for the film-forming resin and are stably dispersed in the basecoating composition, and (4) pigment particles, to form a basecoat, and; (B) coating the basecoat with one or more applications of a topcoating composition comprising (1) an organic film-forming resin, and (2) a solvent system for the organic film-forming resin of the topcoating composition, to form a transparent topcoat.
    Type: Grant
    Filed: March 30, 1984
    Date of Patent: November 4, 1986
    Assignee: PPG Industries, Inc.
    Inventors: Naomi R. Suss, Samuel Porter, Jr.
  • Patent number: 4620994
    Abstract: Disclosed is a method for coating a substrate comprising the steps of: (A) coating the substrate with one or more applications of a basecoating composition comprising (1) an organic film-forming resin, (2) an organo-modified clay stably dispersed in the basecoating composition, (3) a solvent system for the film-forming resin, and (4) pigment particles, to form a basecoat; and (B) coating the basecoat with one or more applications of a topcoating composition comprising (1) an organic film-forming resin, and (2) a solvent system for the organic film-forming resin of the topcoating composition, to form a transparent topcoat.
    Type: Grant
    Filed: March 30, 1984
    Date of Patent: November 4, 1986
    Assignee: PPG Industries, Inc.
    Inventors: Naomi R. Suss, Samuel Porter, Jr.
  • Patent number: 4558075
    Abstract: Disclosed is an essentially solvent-based, organic, high-solids coating composition containing (A) a film-forming binder system containing a crosslinkable resin having a weight average molecular weight of from 300 to 15,000; (B) an organo-modified clay dispersed in the coating composition; and (C) a solvent system for the crosslinkable resin.Also disclosed is an essentially solvent-based, organic, high-solids coating composition containing (A) a film-forming binder system containing a crosslinkable resin; (B) an organo-modified clay dispersed in the coating composition; (C) a solvent system for the crosslinkable resin; and (D) organic polymeric microparticles which are insoluble in the solvent system for the crosslinkable resin and which have a diameter in the range of from about 0.01 to about 10 microns.
    Type: Grant
    Filed: March 30, 1984
    Date of Patent: December 10, 1985
    Assignee: PPG Industries, Inc.
    Inventors: Naomi R. Suss, Samuel Porter, Jr.
  • Patent number: 4540766
    Abstract: This invention encompasses a high solids, solvent-based, thermosetting composition having the necessary hardness and flexibility that make it an effective coating for both elastomeric and hard metal substrates. The composition comprises a polyester-urethane polyol and a curing agent such as an aminoplast.
    Type: Grant
    Filed: October 3, 1983
    Date of Patent: September 10, 1985
    Assignee: PPG Industries, Inc.
    Inventors: Wen-Hsuan Chang, Ronald R. Ambrose, David T. McKeough, Samuel Porter, Jr., Delano R. Eslinger
  • Patent number: 4535132
    Abstract: This invention encompasses a high solids, solvent-based, thermosetting composition having the necessary hardness and flexibility that make it an effective coating for both elastomeric and metal substrates. The composition comprises a polyester polyol and a curing agent such as an aminoplast.
    Type: Grant
    Filed: December 12, 1983
    Date of Patent: August 13, 1985
    Assignee: PPG Industries, Inc.
    Inventors: Ronald R. Ambrose, Wen-Hsuan Chang, David T. McKeough, Delano R. Eslinger, Samuel Porter, Jr.
  • Patent number: 4529665
    Abstract: In a curable composition which contains as its principal components an active hydrogen-containing resin, a curing agent, and an acid catalyst, improved properties result by utilizing as the acid catalyst an ammonium salt or substituted ammonium salt of a sulfocarboxylic acid ester. The resultant composition is capable of curing at a low temperature and exhibits good appearance, solvent resistance and intercoat adhesion.
    Type: Grant
    Filed: December 23, 1983
    Date of Patent: July 16, 1985
    Assignee: PPG Industries, Inc.
    Inventors: Suryya K. Das, Samuel Porter, Jr., William P. Blackburn, Karl F. Schimmel, Rostyslaw Dowbenko