Patents by Inventor Ellor J. Van Buskirk
Ellor J. Van Buskirk 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: 11407905Abstract: The present invention is directed to an electrodepositable coating composition comprising an acrylic polymer comprising a polymerization product of a polymeric dispersant and an aqueous dispersion of a second-stage ethylenically unsaturated monomer composition comprising greater than 40% by weight of a second-stage hydroxyl-functional (meth)acrylate monomer, based on the total weight of the second-stage ethylenically unsaturated monomer composition; an ionic salt group-containing film-forming polymer different from the acrylic polymer; and a curing agent. Also disclosed are coatings, coated substrates, and methods of coating a substrate.Type: GrantFiled: March 1, 2018Date of Patent: August 9, 2022Assignee: PPG Industries Ohio, Inc.Inventors: David A. Stone, Ellor J. Van Buskirk, Craig A. Wilson, Jo-Ann E. Bice
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Publication number: 20210324209Abstract: The present invention is directed to an electrodepositable coating composition comprising an acrylic polymer comprising a polymerization product of a polymeric dispersant and an aqueous dispersion of a second-stage ethylenically unsaturated monomer composition comprising greater than 40% by weight of a second-stage hydroxyl-functional (meth)acrylate monomer, based on the total weight of the second-stage ethylenically unsaturated monomer composition; an ionic salt group-containing film-forming polymer different from the acrylic polymer; and a curing agent. Also disclosed are coatings, coated substrates, and methods of coating a substrate.Type: ApplicationFiled: March 1, 2018Publication date: October 21, 2021Applicant: PPG Industries Ohio, Inc.Inventors: David A. Stone, Ellor J. Van Buskirk, Craig A. Wilson, Jo-Ann E. Bice
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Patent number: 9068089Abstract: The present invention is directed to an electrodepositable coating composition comprising a reaction product of an epoxy functional polymer and a cyclic guanidine, and a source of unreacted phenol, wherein the electrodepositable coating composition has a columbic usage of less than 100 coulombs/gram when deposited on a conductive substrate at a current density of ?1.5 mAmps/cm2. Methods of making the electrodepositable coating composition are also disclosed.Type: GrantFiled: March 15, 2013Date of Patent: June 30, 2015Assignee: PPG Industries Ohio, Inc.Inventors: Ellor J. Van Buskirk, Craig A. Wilson, David Stone
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Publication number: 20150122663Abstract: The present invention relates to electrodepositable coating compositions that produce cured coatings that exhibit resistance to cratering. The coating compositions include an active hydrogen-containing cationic salt group-containing polymer; and 0.1 to 20 percent by weight, based on the total weight of resin solids in the coating composition, of an ungelled acrylic polymer.Type: ApplicationFiled: December 24, 2014Publication date: May 7, 2015Inventors: Ellor J. Van Buskirk, Joseph Swanger, Craig Wilson
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Patent number: 8497359Abstract: A cationic electrodepositable coating composition is disclosed. The present invention in directed to a cationic electrodepositable coating composition comprising a lignin-containing cationic salt resin, that comprises (A) the reaction product of: lignin, an amine, and a carbonyl compound; (B) the reaction product of lignin, epichlorohydrin, and an amine; or (C) combinations thereof.Type: GrantFiled: February 26, 2010Date of Patent: July 30, 2013Assignee: PPG Industries Ohio, Inc.Inventors: David Fenn, Mark P. Bowman, Steven R. Zawacky, Ellor J. Van Buskirk, Peter Kamarchik
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Publication number: 20110213057Abstract: A cationic electrodepositable coating composition is disclosed.Type: ApplicationFiled: February 26, 2010Publication date: September 1, 2011Inventors: David Fenn, Mark P. Bowman, Steven R. Zawacky, Ellor J. Van Buskirk, Peter Kamarchik
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Patent number: 6869513Abstract: The invention provides a photodegradation resistant curable electrodepositable coating composition which includes one or more ungelled, active hydrogen-containing cationic sulfonium salt group-containing resins which are electrodepositable on a cathode, and one or more curing agents having cationic groups or groups which are capable of forming cationic groups. The invention also provides processes for coating an electroconductive substrate with the coating composition, to form single layer or multi-layer composite coatings. Also provided is a multi-layer composite coating in which the electrodepositable coating composition is used to form the primer layer. The compositions have improved throw power versus typical sulfonium salt electrodepositable compositions.Type: GrantFiled: November 8, 2001Date of Patent: March 22, 2005Assignee: PPG Industries Ohio, Inc.Inventors: Anthony D. Kulfan, Ellor J. Van Buskirk, Craig A. Wilson
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Publication number: 20030098238Abstract: The invention provides a photodegradation resistant curable electrodepositable coating composition which includes one or more ungelled, active hydrogen-containing cationic sulfonium salt group-containing resins which are electrodepositable on a cathode, and one or more curing agents having cationic groups or groups which are capable of forming cationic groups. The invention also provides processes for coating an electroconductive substrate with the coating composition, to form single layer or multi-layer composite coatings. Also provided is a multi-layer composite coating in which the electrodepositable coating composition is used to form the primer layer. The compositions have improved throw power versus typical sulfonium salt electrodepositable compositions.Type: ApplicationFiled: November 8, 2001Publication date: May 29, 2003Inventors: Anthony D. Kulfan, Ellor J. Van Buskirk, Craig A. Wilson
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Patent number: 6248225Abstract: A process for applying two electrodeposited coatings, one on top of the other, to an electrically conductive substrate is provided. An electrically conductive first coating is applied to provide for corrosion resistance and a second polyurethane-based coating is applied to the first coating to provide chip resistance. Also, aqueous dispersions of the polyurethane coating compositions are disclosed.Type: GrantFiled: May 11, 1999Date of Patent: June 19, 2001Assignee: PPG Industries Ohio, Inc.Inventors: Thomas Palaika, Ellor J. Van Buskirk, Victor G. Corrigan, Venkatachalam Eswarakrishnan, Gregory J. McCollum, Robert R. Zwack, Philippe Faucher, Craig A. Wilson, Chester J. Szymanski, James E. Poole, Keith S. Ritter, Richard F. Syput
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Patent number: 5760107Abstract: An electrodepositable composition is provided comprising:(A) a non-gelled cationic resin which is derived from a polyepoxide and which contains in the resin molecule cationic salt groups and active hydrogen groups selected from aliphatic hydroxyl and primary and secondary amino; and present as a separate component(B) a fully capped polyisocyanate curing agent containing substantially no free isocyanate groups. The electrodepositable composition contains from about 0.02 to 1.0 milliequivalents phenolic hydroxyl groups per gram of resin solids, and from about 0.1 to 2.0 milliequivalents beta-hydroxy ester groups per gram of resin solids. The composition provides excellent corrosion resistance when electrodeposited over steel substrates, and does not require lead in the formulation nor the use of a conventional chrome rinse for the steel substrate pretreatment before electrodeposition.Type: GrantFiled: October 1, 1996Date of Patent: June 2, 1998Assignee: PPG Industries, Inc.Inventors: Joseph T. Valko, Philippe Faucher, Richard F. Karabin, Thomas C. Moriarity, V. Eswarakrishnan, Ellor J. Van Buskirk, Gregory J. McCollum, Raphael O. Kollah
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Patent number: 5639814Abstract: A formable, weldable, temporary, protective coating for use on metals is provided comprising a neutralized acid- or base-functional polymer, lubricant, and solvent including water and an alcohol having no more than four carbon atoms per molecule, whereby the coating is capable of rapid drying at relatively low temperatures while exhibiting a flash point above 100.degree. F.Type: GrantFiled: November 3, 1995Date of Patent: June 17, 1997Assignee: PPG Industries, Inc.Inventors: Ellor J. Van Buskirk, Rudolf Maska
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Patent number: 5582704Abstract: An electrodepositable composition is provided comprising:(A) a non-gelled cationic resin which is derived from a polyepoxide and which contains in the resin molecule cationic salt groups and active hydrogen groups selected from aliphatic hydroxyl and primary and secondary amino; and present as a separate component(B) a fully capped polyisocyanate curing agent containing substantially no free isocyanate groups, The electrodepositable composition contains from about 0.02 to 1.0 milliequivalents phenolic hydroxyl groups per gram of resin solids, and from about 0.1 to 2.0 milliequivalents beta-hydroxy ester groups per gram of resin solids. The composition provides excellent corrosion resistance when electrodeposited over steel substrates, and does not require lead in the formulation nor the use of a conventional chrome rinse for the steel substrate pretreatment before electrodeposition.Type: GrantFiled: November 4, 1994Date of Patent: December 10, 1996Assignee: PPG Industries, Inc.Inventors: Joseph T. Valko, Philippe Faucher, Richard F. Karabin, Thomas C. Moriarity, V. Eswarakrishnan, Ellor J. Van Buskirk, Gregory J. McCollum, Raphael O. Kollah
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Patent number: 5344858Abstract: A composition useful as an aqueous anionic electrodepositable coating comprises a film-former of from about 67-95% by weight of a phosphated polyepoxide resin, from about 5-33% by weight of a carboxyl group-containing vinyl addition resin, and up to about 40% by weight of the film-former of a crosslinking agent.Type: GrantFiled: May 28, 1993Date of Patent: September 6, 1994Assignee: PPG Industries, Inc.Inventors: Terence J. Hart, Ellor J. Van Buskirk, Thomas R. Hockswender
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Patent number: 5229450Abstract: A formable, weldable, temporary protective coating for use on metals, said coating comprising a base-neutralized acid or base-functional copolymer.Type: GrantFiled: August 13, 1991Date of Patent: July 20, 1993Assignee: PPG Industries, Inc.Inventors: Ellor J. Van Buskirk, Rudolf Maska
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Patent number: 4942193Abstract: A formable, weldable, temporary protective coating for use on metals, said coating comprising a base-neutralized acid or base-functional copolymer which contains wax.Type: GrantFiled: October 11, 1988Date of Patent: July 17, 1990Assignee: PPG Industries, Inc.Inventors: Ellor J. Van Buskirk, Rudolf Maska
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Patent number: 4692382Abstract: A coating composition has as its principal constituents(i) an isocyanate terminated urethane containing material; and(ii) a phosphatized polyepoxide essentially free of oxirane groups.The coating composition has excellent elongation and is particularly useful as a coating applied directly to metal. The coating composition is also useful as a primer in the preparation of multilayer coatings having good flexibility.Type: GrantFiled: July 21, 1986Date of Patent: September 8, 1987Assignee: PPG Industries, Inc.Inventors: Robert J. Schmitt, Leon A. Perez, Robert A. Montague, Marvin T. Tetenbaum, Ellor J. Van Buskirk
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Patent number: 4619952Abstract: Disclosed herein are water-based coatings comprising as an essential film-former resinous blends of acid group-containing resins and modified epoxy resins which have been found to be particularly useful as electrodepositable compositions for can coatings.Type: GrantFiled: September 20, 1985Date of Patent: October 28, 1986Assignee: PPG Industries, Inc.Inventors: Terence J. Hart, Rostyslaw Dowbenko, Rudolf Maska, Ellor J. Van Buskirk, Marvin T. Tetenbaum
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Patent number: 4605476Abstract: Disclosed herein are water-based coatings comprising as an essential film-former resinous blends of acid group-containing resins and modified epoxy resins which have been found to be particularly useful as electrodepositable compositions for can coatings.Type: GrantFiled: August 2, 1984Date of Patent: August 12, 1986Assignee: PPG Industries, Inc.Inventors: Terence J. Hart, Rostyslaw Dowbenko, Rudolf Maska, Ellor J. Van Buskirk, Marvin T. Tetenbaum