Patents by Inventor Randall J. Brent
Randall J. Brent 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: 9303167Abstract: Disclosed are methods for treating metal substrates, including ferrous substrates, such as cold rolled steel and electrogalvanized steel. The methods include contacting the metal substrates with a conditioning composition including a free fluoride source and then depositing a pretreatment composition including a Group IIIB and/or IVB metal on a portion of the substrate contacted with the conditioning composition. Also disclosed are electrophoretically coated substrates treated by the methods.Type: GrantFiled: March 15, 2013Date of Patent: April 5, 2016Assignee: PPG Industries Ohio, Inc.Inventors: Brian C. Okerberg, Richard M. Vargas, Randall J. Brent, John F. McIntyre, Mark W. McMillen, Nathan J. Silvernail
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Publication number: 20140272405Abstract: Disclosed are methods for treating metal substrates, including ferrous substrates, such as cold rolled steel and electrogalvanized steel. The methods include contacting the metal substrates with a conditioning composition including a free fluoride source and then depositing a pretreatment composition including a Group IIIB and/or IVB metal on a portion of the substrate contacted with the conditioning composition. Also disclosed are electrophoretically coated substrates treated by the methods.Type: ApplicationFiled: March 15, 2013Publication date: September 18, 2014Applicant: PPG Industries Ohio, Inc.Inventors: Brian C. Okerberg, Richard M. Vargas, Randall J. Brent, John F. McIntyre, Mark W. McMillen, Nathan J. Silvernail
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Patent number: 8652270Abstract: Disclosed are methods for treating and coating a ferrous metal substrate, such as cold rolled steel, hot rolled steel, and electrogalvanized steel. These methods include contacting the ferrous metal substrate with an aqueous pretreatment composition comprising: (a) a Group IIIB and/or IVB metal compound; (b) phosphate ions; and (c) water.Type: GrantFiled: December 7, 2011Date of Patent: February 18, 2014Assignee: PPG Industries Ohio, Inc.Inventors: Randall J. Brent, Nicephoros A. Fotinos, John F. McIntyre, David A. Raney, Richard M. Vargas
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Publication number: 20120076940Abstract: Disclosed are methods for treating and coating a ferrous metal substrate, such as cold rolled steel, hot rolled steel, and electrogalvanized steel. These methods include contacting the ferrous metal substrate with an aqueous pretreatment composition comprising: (a) a Group IIIB and/or IVB metal compound; (b) phosphate ions; and (c) water.Type: ApplicationFiled: December 7, 2011Publication date: March 29, 2012Applicant: PPG INDUSTRIES OHIO, INC.Inventors: Randall J. Brent, Nicephoros A. Fotinos, John F. McIntyre, David A. Raney, Richard M. Vargas
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Patent number: 8097093Abstract: Disclosed are methods for treating and coating a ferrous metal substrate, such as cold rolled steel, hot rolled steel, and electrogalvanized steel. These methods include contacting the ferrous metal substrate with an aqueous pretreatment composition comprising: (a) a Group IIIB and/or IVB metal compound; (b) phosphate ions; and (c) water.Type: GrantFiled: September 25, 2008Date of Patent: January 17, 2012Assignee: PPG Industries Ohio, IncInventors: Randall J. Brent, Nicephoros A. Fotinos, John F. McIntyre, David A. Raney, Richard M. Vargas
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Publication number: 20090084471Abstract: Disclosed are methods for treating and coating a ferrous metal substrate, such as cold rolled steel, hot rolled steel, and electrogalvanized steel. These methods include contacting the ferrous metal substrate with an aqueous pretreatment composition comprising: (a) a Group IIIB and/or IVB metal compound; (b) phosphate ions; and (c) water.Type: ApplicationFiled: September 25, 2008Publication date: April 2, 2009Applicant: PPG INDUSTRIES OHIO, INC.Inventors: Randall J. Brent, Nicephoros A. Fotinos, John F. McIntyre, David A. Raney, Richard M. Vargas
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Patent number: 6090860Abstract: In one embodiment, the present invention relates to a method of separating a coating from a base plastic in a multilayered structure, comprising the steps of (A) providing the multilayered structure comprising at least a coating and a base plastic; (B) contacting the multilayered structure with a mixture comprising (i) a major amount of water, (ii) at least one basic compound or acid compound, (iii) at least one lifting agent, and (iv) at least one accelerator; and (C) separating the coating from the base plastic. In another embodiment, the present invention relates to a separating composition containing a major amount of water, at least one basic compound or acid compound, at least one lifting agent, and at least one accelerator. The inventive methods and compositions overcome numerous problems in the art by enabling the efficient recycling of coated polymer articles whereby clear and/or colorless recycled polymers may be obtained.Type: GrantFiled: November 17, 1998Date of Patent: July 18, 2000Assignee: PPG Industries Ohio, Inc.Inventors: Donald S. Peters, Randall J. Brent
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Patent number: 5840772Abstract: In one embodiment, the present invention relates to a method of separating a coating from a base plastic in a multilayered structure, comprising the steps of (A) providing the multilayered structure comprising at least a coating and a base plastic; (B) contacting the multilayered structure with a mixture comprising (i) a major amount of water, (ii) at least one basic compound or acid compound, (iii) at least one lifting agent, and (iv) at least one accelerator; and (C) separating the coating from the base plastic. In another embodiment, the present invention relates to a separating composition containing a major amount of water, at least one basic compound or acid compound, at least one lifting agent, and at least one accelerator. The inventive methods and compositions overcome numerous problems in the art by enabling the efficient recycling of coated polymer articles whereby clear and/or colorless recycled polymers may be obtained.Type: GrantFiled: September 18, 1996Date of Patent: November 24, 1998Assignee: PPG Industries, Inc.Inventors: Donald S. Peters, Randall J. Brent
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Patent number: 5753316Abstract: In one embodiment, the present invention relates to a method of treating metal surfaces including the steps: coating the metal surface with a film-forming sealcoat containing at least one organic resin and at least one torque modifier, with the proviso that if the metal surface is a phosphated metal surface, then no other film of a siccative organic coating other than the film-forming sealcoat is applied; and curing the film-forming sealcoat.Type: GrantFiled: January 14, 1997Date of Patent: May 19, 1998Assignee: PPG Industries, Inc.Inventors: Randall J. Brent, Robert D. Anthony
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Patent number: 5603818Abstract: The invention describes a method of producing an adherent and corrosion-inhibiting multi-layer coating on metal parts comprising the steps of(A) phosphating the metal parts with an aqueous metal phosphating solution;(B) electrophoretically depositing a film of a siccative organic coating composition on the phosphated metal parts;(C) applying a second film of a composition comprising at least one film-forming organic resin component as a seal coat;(D) curing the coating on the metal parts; and optionally(E) applying a corrosion-inhibiting film as a top seal coat.Type: GrantFiled: December 8, 1995Date of Patent: February 18, 1997Assignee: Man-Gill Chemical CompanyInventors: Randall J. Brent, David A. Blaha
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Patent number: 5385655Abstract: The invention describes a method of producing an adherent and corrosion-inhibiting multi-layer coating on metal parts comprising the steps of(A) phosphating the metal parts with an aqueous metal phosphating solution;(B) electrophoretically depositing a film of a siccative organic coating composition on the phosphated metal parts;(C) applying a second film of a composition comprising at least one film-forming organic resin component as a seal coat;(D) curing the coating on the metal parts; and optionally(E) applying a corrosion-inhibiting film as a top seal coat.Type: GrantFiled: November 23, 1993Date of Patent: January 31, 1995Assignee: Man-Gill Chemical CompanyInventors: Randall J. Brent, David A. Blaha