Patents by Inventor Mark W. McMillen
Mark W. McMillen 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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Publication number: 20240076781Abstract: Disclosed herein are systems and methods for treating a magnesium or a magnesium alloy substrate. The system includes a cleaning composition having a pH greater than 8.5 or a solvent, and a pretreatment composition comprising an organophosphate compound and/or an organophosphonate compound. The method includes contacting a substrate surface with the cleaning composition or the solvent, and contacting the surface with the pretreatment composition. Also disclosed are substrates treated with one of the systems or methods. Also disclosed are magnesium or magnesium alloy substrates wherein, between the air/substrate interface and 500 nm below the air/substrate interface (a) oxygen and magnesium are present in a combined amount of at least 70 atomic %; (b) carbon is present in an amount of no more than 30 atomic %; and/or (c) fluoride is present in an amount of no more than 8 atomic %, wherein atomic % is measured by XPS depth profiling.Type: ApplicationFiled: August 10, 2020Publication date: March 7, 2024Applicant: PPG Industries Ohio, Inc.Inventors: Kristi M. Allen, Rachel D. Harris, Justin J. Martin, Steven J. Lemon, Silvia Bezer, Mark W. McMillen
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Publication number: 20240050983Abstract: Disclosed herein are systems and methods for treating a metal substrate. The system includes a first pretreatment composition comprising a fluorometallic acid and free fluoride and having a pH of 1.0 to 4.0 and a second pretreatment composition comprising a Group IVB metal or a third pretreatment comprising a lanthanide series metal and an oxidizing agent. The method includes contacting at least a portion of a surface of the substrate with the first pretreatment composition and optionally contacting at least a portion of the substrate surface with the second pretreatment composition or the third pretreatment composition. Also disclosed are substrates treated with one of the systems or methods. Also disclosed are magnesium or magnesium alloy substrates comprising a bilayer comprising a first layer comprising silicone and a second layer comprising fluoride.Type: ApplicationFiled: August 10, 2020Publication date: February 15, 2024Applicant: PPG Industries Ohio, Inc.Inventors: Rachel D. Harris, Kristi M. Allen, Elizabeth S. Brown-Tseng, Justin J. Martin, Kuldeep Kumar, Mark W. McMillen, Silvia Bezer
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Patent number: 11518960Abstract: The present invention is directed towards an aqueous alkaline cleaner composition comprising: an iron cation, a molybdenum cation, a cobalt cation, or combinations thereof; and an alkaline component; wherein the pH of the aqueous alkaline composition is at least 10, and the aqueous alkaline composition includes no more than 50 ppm of phosphate. Also disclosed are treatment systems comprising an aqueous alkaline composition for treating at least a portion of a substrate, and a pretreatment composition for treating at least a portion of a substrate. Also disclosed are substrates treated according to the disclosed treatment systems.Type: GrantFiled: August 24, 2017Date of Patent: December 6, 2022Assignee: PPG Industries Ohio, Inc.Inventors: Mark W. McMillen, Steven J. Lemon, Kevin T. Sylvester, Justin J. Martin, Michel Sudour
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Publication number: 20220049358Abstract: The present invention is directed to a particle having a chemical conversion coating on at least a portion of the particle surface. The present invention is further directed to a coated substrate comprising: (a) a surface that has been contacted with a particle having a chemical conversion coating on at least a portion of the particle surface such that at least some portion of the substrate becomes treated with the conversion coating.Type: ApplicationFiled: December 4, 2019Publication date: February 17, 2022Applicant: PPG Industries Ohio, Inc.Inventors: Julia Heigl, Nicole Lynn Rakers, Mark W. McMillen, Kees Van der Kolk, Arif Mubarok, Daniel Connor, Melinda J. Shearer, Mary Lyn C. Lim
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Patent number: 10017861Abstract: Disclosed are methods for treating metal substrates that include contacting the substrate with a pretreatment composition comprising a rare earth metal and a zirconyl compound. The present invention also relates to coated substrates produced thereby and further to substrates additionally coated with an electrophoretically applied coating composition.Type: GrantFiled: August 3, 2011Date of Patent: July 10, 2018Assignee: PPG Industries Ohio, Inc.Inventors: Nathan J. Silvernail, Mark W. McMillen, Shan Cheng
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Publication number: 20180057773Abstract: The present invention is directed towards an aqueous alkaline cleaner composition comprising: an iron cation, a molybdenum cation, a cobalt cation, or combinations thereof; and an alkaline component; wherein the pH of the aqueous alkaline composition is at least 10, and the aqueous alkaline composition includes no more than 50 ppm of phosphate. Also disclosed are treatment systems comprising an aqueous alkaline composition for treating at least a portion of a substrate, and a pretreatment composition for treating at least a portion of a substrate. Also disclosed are substrates treated according to the disclosed treatment systems.Type: ApplicationFiled: August 24, 2017Publication date: March 1, 2018Inventors: Mark W. McMillen, Steven J. Lemon, Kevin T. Sylvester, Justin J. Martin, Michel Sudour
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Patent number: 9822260Abstract: Disclosed are pretreatment compositions and associated methods for treating metal substrates with pretreatment compositions, including ferrous substrates, such as cold rolled steel and electrogalvanized steel. The pretreatment composition includes: (a) a group IIIB and/or IVB metal; (b) free fluorine; (c) a source of aluminum ions; and (d) water. The methods include contacting the metal substrates with the pretreatment composition.Type: GrantFiled: June 18, 2014Date of Patent: November 21, 2017Assignee: PPG Industries Ohio, Inc.Inventors: Mark W. McMillen, Edward F. Rakiewicz, Mark W. Simpson, James A DeChant
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Publication number: 20170306497Abstract: Disclosed is a substrate pretreatment system, comprising (a) an activating rinse for treating at least a portion of a substrate comprising a dispersion of metal phosphate particles having a D90 particle size of no greater than 10 ?m, wherein the metal phosphate comprises divalent or trivalent metals or combinations thereof; and (b) a pretreatment composition for treating at least a portion of the substrate treated with the activating rinse, comprising zinc ions and phosphate ions, wherein the pretreatment composition is substantially free of nickel. Methods of treating a substrate with the substrate pretreatment system also are disclosed. Substrates treated with the substrate pretreatment system also are disclosed.Type: ApplicationFiled: April 25, 2016Publication date: October 26, 2017Inventors: Mark W. McMillen, Steven Joseph Lemon, Peter L. Votruba-Drzal, Richard F. Karabin
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Publication number: 20170306498Abstract: Disclosed is an activating rinse for treating at least a portion of a substrate, comprising a dispersion of metal phosphate particles having a D90 particle size of no greater than 10 ?m, wherein the metal phosphate comprises divalent or trivalent metals or combinations thereof; a dispersant; and a metal sulfate salt. Methods of treating a substrate with the activating rinse also are disclosed. Optionally, substrates treated with the activating rinse also are disclosed.Type: ApplicationFiled: April 25, 2016Publication date: October 26, 2017Inventors: Mark W. McMillen, Steven Joseph Lemon, Peter L. Votruba-Drzal, Matthew E. Wehrle, Nathan J. Silvernail, Richard F. Karabin
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Patent number: 9574093Abstract: Disclosed are methods for treating metal substrates, including ferrous substrates, such as cold rolled steel and electrogalvanized steel. The methods include depositing an electropositive metal onto at least a portion of the substrate, and then contacting the substrate with a pretreatment composition that is substantially free of crystalline phosphates and chromates. The present invention also relates to coated substrates produced thereby.Type: GrantFiled: September 28, 2007Date of Patent: February 21, 2017Assignee: PPG Industries Ohio, Inc.Inventors: Mark W. McMillen, Edward F. Rakiewicz, Richard F. Karabin, Michelle S. Miles
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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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Patent number: 9255332Abstract: An activating rinse for treating a substrate is disclosed. The activating rinse comprises a first component comprising a dispersion of divalent or trivalent metal phosphate particles having an average particle size that is not greater than 10 ?m, and a second component comprising first and second copolymers. The first copolymer is formed by the polymerization of ethylene oxide, propylene oxide, or combinations thereof, wherein one end of the first copolymer is terminated by an amine group, a hydroxyl group, or an alkyl group. The second copolymer is formed by the polymerization of styrene and a second monomer containing at least one carboxylate group, anhydride group, or combinations thereof. The second monomer is present in an amount of less than 50 percent by weight of the total weight of the second component. Also disclosed are methods for treating a substrate with the activating rinse and substrates treated with the activating rinse.Type: GrantFiled: September 5, 2013Date of Patent: February 9, 2016Assignee: PPG Industries Ohio, Inc.Inventors: Mark W. McMillen, Nathan J. Silvernail, Peter L. Votruba-Drzal
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Publication number: 20150064445Abstract: An activating rinse for treating a substrate is disclosed. The activating rinse comprises a first component comprising a dispersion of divalent or trivalent metal phosphate particles having an average particle size that is not greater than 10 ?m, and a second component comprising first and second copolymers. The first copolymer is formed by the polymerization of ethylene oxide, propylene oxide, or combinations thereof, wherein one end of the first copolymer is terminated by an amine group, a hydroxyl group, or an alkyl group. The second copolymer is formed by the polymerization of styrene and a second monomer containing at least one carboxylate group, anhydride group, or combinations thereof. The second monomer is present in an amount of less than 50 percent by weight of the total weight of the second component. Also disclosed are methods for treating a substrate with the activating rinse and substrates treated with the activating rinse.Type: ApplicationFiled: September 5, 2013Publication date: March 5, 2015Inventors: Mark W. McMillen, Nathan J. Silvernail, Peter L. Votruba-Drzal
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Publication number: 20140305803Abstract: Disclosed are pretreatment compositions and associated methods for treating metal substrates with pretreatment compositions, including ferrous substrates, such as cold rolled steel and electrogalvanized steel. The pretreatment composition includes: (a) a group IIIB and/or IVB metal; (b) free fluorine; (c) a source of aluminum ions; and (d) water. The methods include contacting the metal substrates with the pretreatment composition.Type: ApplicationFiled: June 18, 2014Publication date: October 16, 2014Inventors: Mark W. McMillen, Edward F. Rakiewicz, Mark W. Simpson, James A. DeChant
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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: 8673091Abstract: Disclosed are methods for treating metal substrates, including ferrous substrates, such as cold rolled steel and electrogalvanized steel. The methods include contacting the substrate with a pretreatment composition that includes: (a) a group IIIB and/or IVB metal; (b) free fluorine; (c) a metal fluoride salt formed from a metal which forms a fluoride salt having a pKsp of at least 11; and (d) water.Type: GrantFiled: August 3, 2007Date of Patent: March 18, 2014Assignee: PPG Industries Ohio, IncInventors: Mark W. McMillen, Edward F. Rakiewicz
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Publication number: 20130034742Abstract: Disclosed are methods for treating metal substrates that include contacting the substrate with a pretreatment composition comprising a rare earth metal and a zirconyl compound. The present invention also relates to coated substrates produced thereby and further to substrates additionally coated with an electrophoretically applied coating composition.Type: ApplicationFiled: August 3, 2011Publication date: February 7, 2013Applicant: PPG Industries Ohio, Inc.Inventors: Nathan J. Silvernail, Mark W. McMillen, Shan Cheng
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Patent number: 8282801Abstract: Disclosed are methods for passivating metal substrates, including ferrous substrates, such as cold rolled steel and electrogalvanized steel. The methods comprise the steps of depositing an electropositive metal onto at least a portion of the substrate, followed immediately by electrophoretically depositing on the substrate a curable, electrodepositable coating composition. The present invention also relates to coated substrates produced by the above methods.Type: GrantFiled: March 2, 2009Date of Patent: October 9, 2012Assignee: PPG Industries Ohio, Inc.Inventors: Edward F. Rakiewicz, Mark W. McMillen, Richard F. Karabin, Michelle Miles
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Publication number: 20120183806Abstract: Disclosed are pretreatment compositions and associated methods for treating metal substrates with pretreatment compositions, including ferrous substrates, such as cold rolled steel and electrogalvanized steel. The pretreatment composition includes: (a) a group IIIB and/or IVB metal; (b) free fluorine; (c) a source of aluminum ions; and (d) water. The methods include contacting the metal substrates with the pretreatment composition.Type: ApplicationFiled: January 17, 2011Publication date: July 19, 2012Applicant: PPG Industries, Inc.Inventors: Mark W. McMillen, Edward F. Rakiewicz, Mark W. Simpson, James A. DeChant
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Publication number: 20120145039Abstract: Disclosed are replenisher compositions and methods of replenishing pretreatment compositions. The methods include adding a replenisher composition to a pretreatment composition wherein the replenisher composition includes (a) a zirconium complex and also optionally includes: (b) a dissolved complex metal fluoride ion wherein the metal ion comprises a Group IIIA metal, Group IVA metal, Group IVB metal, or combinations thereof; (c) a component comprising an oxide, hydroxide, or carbonate of Group IIIA, Group IVA, Group IVB metals; or combinations thereof; and/or (d) a dissolved metal ion comprising a Group IB metal, Group IIB metal, Group VIIB metal, Group VIII metal, Lanthanide Series metal, or combinations thereof.Type: ApplicationFiled: February 23, 2012Publication date: June 14, 2012Applicant: PPG Industries Ohio, Inc.Inventors: Nathan J. Silvernail, Terri Ziegler, Mark W. McMillen, Gregory J. McCollum