Patents by Inventor Paul P. Greigger
Paul P. Greigger 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).
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Patent number: 8623989Abstract: Polyurea/polythiourea compositions comprising the reaction product of a first component comprising isocyanate and a second component comprising an amine, wherein the first component further comprises an isocyanate functional polythioether-polyurethane and/or polythiourethane, and/or the second component further comprises an amine/hydroxy functional polythioether, are disclosed. Methods for using the coating, and substrates coated therewith, are also disclosed.Type: GrantFiled: July 3, 2007Date of Patent: January 7, 2014Assignee: PRC De Soto International, Inc.Inventors: Howard Senkfor, Thomas R. Hockswender, Nina Bojkova, Paul P. Greigger, Gregory J. McCollum, John R. Gilmore, Chandra B. Rao
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Publication number: 20130344340Abstract: Polyurea/polythiourea compositions comprising the reaction product of a first component comprising isocyanate and a second component comprising an amine, wherein the first component further comprises an isocyanate functional polythioether-polyurethane and/or polythiourethane, and/or the second component further comprises an amine/hydroxy functional polythioether, are disclosed. Methods for using the coating, and substrates coated therewith, are also disclosed.Type: ApplicationFiled: July 3, 2007Publication date: December 26, 2013Inventors: Howard Senkfor, Thomas R. Hockswender, Nina Bojkova, Paul P. Greigger, Gregory J. McCollum, John R. Gilmore, Chandra B. Rao
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Patent number: 7928160Abstract: The present invention is directed to a coating composition comprising polyurea and polyurethane. Further, the present invention is directed to a coating composition comprising polyurea or, polyurea and polyurethane, and flame retardant. The polyurea is formed from a reaction mixture comprising isocyanate and amine wherein the ratio of equivalents of isocyanate groups to equivalents of amine groups is greater than 1 and the isocyanate-functional component and the amine-functional component can be applied to a substrate at a volume mixing ratio of 1:1.Type: GrantFiled: July 27, 2006Date of Patent: April 19, 2011Assignee: PPG Industries Ohio, Inc.Inventors: Howard Senkfor, Paul P. Greigger, Thomas R. Hockswender, Dan M. Bratys
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Publication number: 20100239815Abstract: The present invention is directed to a coating composition comprising polyurea and polyurethane. Further, the present invention is directed to a coating composition comprising polyurea or, polyurea and polyurethane, and flame retardant. The polyurea is formed from a reaction mixture comprising isocyanate and amine wherein the ratio of equivalents of isocyanate groups to equivalents of amine groups is greater than 1 and the isocyanate-functional component and the amine-functional component can be applied to a substrate at a volume mixing ratio of 1:1.Type: ApplicationFiled: July 27, 2006Publication date: September 23, 2010Inventors: Howard Senkfor, Paul P. Greigger, Thomas R. Hockswender, Dan M. Bratys
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Publication number: 20080160318Abstract: Polyurea/polythiourea compositions comprising the reaction product of a first component comprising isocyanate and a second component comprising an amine, wherein the first and/or second component further comprises a sulfur-containing compound are disclosed. Methods for using the coating, and substrates coated therewith, are also disclosed.Type: ApplicationFiled: May 4, 2007Publication date: July 3, 2008Inventors: Howard Senkfor, Thomas R. Hockswender, Nina Bojkova, Paul P. Greigger, Gregory J. McCollum
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Patent number: 6479574Abstract: A fire retardant, intumescent, curable composition for use in composite materials has as its principal ingredients a curable resin system and a fire retardant combination of a polyhydroxy compound, a polyphosphate, a nitrogen-containing compound and a polyacrylate monomer. Significant reduction of the flame spread index is achieved.Type: GrantFiled: October 21, 1999Date of Patent: November 12, 2002Assignee: PPG Industries Ohio, Inc.Inventors: Paul P. Greigger, Stephen C. Liptak, Thomas A. Ward
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Patent number: 5108832Abstract: Disclosed is an intumescent curable composition which contains as a resinous binder a flexible polyepoxide resin. The polyepoxide is cured with an appropriate curing agent adapted for the particular resin. An additive component is present which contains a mixture of materials which provide a source of(i) zinc,(ii) boron,(iii) phosphorus, and(iv) an expansion gas upon thermal decomposition. The composition is capable of forming a carbonaceous char upon exposure to heat or flame, with the proviso that the cured, unburned composition has sufficient flexibility that is passes at least 10 continuous cycles of a cold cycle test without cracking. The cold cycle test involves the following steps: the composition is applied at a thickness of 0.5 inch (12.7 millimeters) to a 10 inch (0.0254 meter) section of a 4W13 I-beam having two thermocouples attached to the surface, allowed to cure at ambient temperature for 16 hours, force cured for 5 days at about 60.degree. C. and subjected to the cold cycle test.Type: GrantFiled: September 28, 1990Date of Patent: April 28, 1992Assignee: PPG Industries, Inc.Inventors: Richard M. Nugent, Jr., Thomas A. Ward, Paul P. Greigger, Jerome A. Seiner
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Patent number: 4879345Abstract: A coating composition, containing a fluoropolymer, a film-forming adjuvant resin which is different from the fluoropolymer and adapted to react with the group represented by F in the functional organosilane of formula I and which is selected from the group consisting of acrylic resins, polyepoxide resins, polyester resins, aminoplast resins and mixtures thereof; and an amount effective to promote adhesion of a functional organosilane represented by formula I: ##STR1## wherein A represents an organo group containing from 1 to 18 carbon atoms,G represents an organo group containing from 2 to 10 carbon atoms,X represents a hydrolyzable group; andb is an integer from 0 to 2, andF represents amino, polyamino, glycidoxy, mercapto, cyano, allyl, vinyl, urethano, halo, isocyanato, ureido, imidazolinyl, acrylato or methacrylato.Type: GrantFiled: July 27, 1988Date of Patent: November 7, 1989Assignee: PPG Industries, Inc.Inventors: Bruce A. Connelly, Matthew E. Wehrle, Paul P. Greigger
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Patent number: 4745003Abstract: Disclosed is a method of coating the metal side of a mirror by applying to a reflective layer of metal adhered to a transparent glass sheet one or more adherent protective layers wherein the outermost protective layer is a cured coating formed from a liquid coating composition which is curable by exposure to ultraviolet light (UV). The UV curable liquid coating composition has a high degree of resistance to shrinkage upon curing.Type: GrantFiled: December 22, 1986Date of Patent: May 17, 1988Assignee: PPG Industries, Inc.Inventors: Robert J. Sirkoch, Ken W. Niederst, Alan B. Weissberg, Paul P. Greigger, Calvin C. Henning
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Patent number: 4680204Abstract: Disclosed is a method of coating a substrate comprising the steps of (A) coating the substrate with one or more applications of a basecoating composition containing (1) an organic film-forming resin, (2) substantially colorless, substantially inorganic microparticles 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 containing (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. The substantially inorganic microparticles prior to incorporation in the basecoating composition range in size from about 1 to about 150 nanometers.Type: GrantFiled: June 27, 1986Date of Patent: July 14, 1987Assignee: PPG Industries, Inc.Inventors: Suryya K. Das, Jerome A. Seiner, Paul P. Greigger, James E. Jones, Raymond F. Schappert, William G. Boberski
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Patent number: 4677004Abstract: Disclosed is a method of coating a substrate comprising the steps of (A) coating the substrate with one or more applications of a basecoating composition containing (1) an organic film-forming resin, (2) substantially colorless, substantially inorganic microparticles 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 containing (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. The substantially inorganic microparticles prior to incorporation in the basecoating composition range in size from about 1 to about 150 nanometers.Type: GrantFiled: October 2, 1985Date of Patent: June 30, 1987Assignee: PPG Industries, Inc.Inventors: Suryya K. Das, Jerome A. Seiner, Paul P. Greigger, James E. Jones, Raymond F. Schappert, William G. Boberski
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Patent number: 4652470Abstract: Disclosed is a method of coating a substrate comprising the steps of (A) coating the substrate with one or more applications of a basecoating composition containing (1) an organic film-forming resin, (2) substantially colorless, substantially inorganic microparticles 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 containing (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. The substantially inorganic microparticles prior to incorporation in the basecoating composition range in size from about 1 to about 150 nanometers.Type: GrantFiled: March 21, 1986Date of Patent: March 24, 1987Assignee: PPG Industries, Inc.Inventors: Suryya K. Das, Jerome A. Seiner, Paul P. Greigger, James E. Jones, Raymond F. Schappert, William G. Boberski
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Patent number: 4526910Abstract: 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 about 500 to about 10,000; (B) substantially colorless, substantially inorganic microparticles stably dispersed in the coating composition; and (C) a solvent system for the crosslinkable resin. The substantially inorganic microparticles prior to incorporation in the coating composition range in size from about 1 to about 150 nanometers and are in the form of a sol of the microparticles in which the surface of the inorganic microparticles is essentially free of carbon-containing molecules chemically bonded to the inorganic microparticles.Type: GrantFiled: September 6, 1983Date of Patent: July 2, 1985Assignee: PPG Industries, Inc.Inventors: Suryya K. Das, Paul P. Greigger, William G. Boberski, James E. Jones, Raymond F. Schappert, Jerome A. Seiner
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Patent number: 4522958Abstract: 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 about 500 to about 10,000; (B) substantially colorless, substantially inorganic microparticles stably dispersed in the coating composition; and (C) a solvent system for the crosslinkable resin. The inorganic microparticles prior to incorporation in the coating composition range in size from about 1 to about 150 nanometers and are in the form of a sol of the microparticles in which carbon-containing molecules are chemically bonded to the inorganic microparticles at the surface of the microparticles.Type: GrantFiled: September 6, 1983Date of Patent: June 11, 1985Assignee: PPG Industries, Inc.Inventors: Suryya K. Das, William G. Boberski, Paul P. Greigger, James E. Jones, Raymond F. Schappert, Jerome A. Seiner
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Patent number: 4439239Abstract: Disclosed are coating compositions containing pigment in a vehicle comprising a dispersion of colloidal silica, a mixture of a hydrolyzable trialkoxysilane and a hydrolyzable dialkoxysilane, alcohol, water and sufficient acidifying agent to provide a pH of the vehicle ranging from about 2.8 to about 6.0.Type: GrantFiled: June 2, 1982Date of Patent: March 27, 1984Assignee: PPG Industries, Inc.Inventors: Paul P. Greigger, William G. Boberski, Jerome A. Seiner
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Patent number: 4435219Abstract: Disclosed are coating compositions containing a vehicle comprising a dispersion of colloidal silica, a hydrolyzable alkoxysilane, an alcohol, water, and an acidifying agent selected from a soluble metal acid phosphate, phosphoric acid, and a mixture thereof.Type: GrantFiled: June 2, 1982Date of Patent: March 6, 1984Assignee: PPG Industries, Inc.Inventor: Paul P. Greigger