Patents Assigned to Bulk Chemicals, Inc.
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Patent number: 11293104Abstract: A chromium-free aqueous treatment solution for coating metal surfaces which meets corrosion resistance, electrical contact resistance, and paint adhesion requirements set forth in MIL-DTL-81706B, Class 3. The treatment solution contains a compound of a Group IV-B element, and a vanadium ion. The solution may be inorganic and molybdate-free.Type: GrantFiled: June 21, 2018Date of Patent: April 5, 2022Assignee: BULK CHEMICALS, INC.Inventor: Richard J. Church
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Publication number: 20180371622Abstract: A chromium-free aqueous treatment solution for coating metal surfaces which meets corrosion resistance, electrical contact resistance, and paint adhesion requirements set forth in MIL-DTL-81706B, Class 3. The treatment solution contains a compound of a Group IV-B element, and a vanadium ion. The solution may be inorganic and molybdate-free.Type: ApplicationFiled: June 21, 2018Publication date: December 27, 2018Applicant: Bulk Chemicals, Inc.Inventor: Richard J. Church
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Patent number: 9783892Abstract: Aqueous compositions useful as pretreatments prior to painting and to prevent the formation of white rust in the uncoated condition include an organopolyphosphonic acid or salt thereof, an organosilane, and a trivalent chromium compound. A method for treating a surface of a zinc-containing metal includes contacting the surface with an aqueous composition including an organopolyphosphonic acid or salt thereof, an organosilane, and a trivalent chromium compound. The composition may also include an agent for reducing hydrophilicity, such as a polyacrylic acid. The aqueous composition has been found to be particularly well-suited for treating a zinc-containing metal to passivate the surface, improve paint adhesion, and/or improve corrosion resistance.Type: GrantFiled: April 21, 2015Date of Patent: October 10, 2017Assignee: Bulk Chemicals, Inc.Inventors: Ted M. Schlosser, Edward M. Musingo
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Patent number: 9752233Abstract: Aqueous compositions useful as pretreatments prior to painting and to reduce the formation of rust in the uncoated condition consist essentially of water, an organo-functional silane, a compound of a Group IV-B element, and optionally a polyvinyl alcohol, stabilizing agents, wetting agents, thickeners, and biocides, and have an alkaline pH>7. A process for treating a metal surface includes contacting the surface with such an aqueous composition. The compositions and processes were found to have further benefits in comparison to the zinc phosphate metal pretreatment thought to be the standard in the industry. Preferably, the pH of the compositions is alkaline, which has been found to improve the efficacy of a silane as a surface treatment to improve uniformity of paint adhesion. By operating in the alkaline pH range, it was found that flash rusting and/or blush rust were significantly reduced.Type: GrantFiled: July 7, 2015Date of Patent: September 5, 2017Assignee: Bulk Chemicals, Inc.Inventors: Ted M. Schlosser, Jose B. Rivera
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Patent number: 9422431Abstract: An acidic, aqueous composition contains a trivalent chromium compound, an organo-functional silane, and a compound of a group IV-B element. The composition protects metal surfaces, preferably aluminum and aluminum alloys, against corrosion and improves their paint adhesion. The trivalent chromium compound may comprise chromium fluoride and optionally others, such as chromium nitrate. The organo-functional silane is preferably an aminopropyltriethoxy silane, and the compound of a group IV-B element is preferably fluorozirconic acid. The composition can either be dried-in-place or rinsed before a further coating layer is applied. The composition may also include at least one polymer having a plurality of both carboxylic functional groups, alone or with hydroxyl groups.Type: GrantFiled: October 21, 2013Date of Patent: August 23, 2016Assignee: Bulk Chemicals, Inc.Inventor: Richard J. Church
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Patent number: 9073083Abstract: Aqueous compositions useful as pretreatments prior to painting and to reduce the formation of rust in the uncoated condition consist essentially of water, an organo-functional silane, a compound of a Group IV-B element, and optionally a polyvinyl alcohol, stabilizing agents, wetting agents, thickeners, and biocides, and have an alkaline pH>7. A process for treating a metal surface includes contacting the surface with such an aqueous composition. The compositions and processes were found to have further benefits in comparison to the zinc phosphate metal pretreatment thought to be the standard in the industry. Preferably, the pH of the compositions is alkaline, which has been found to improve the efficacy of a silane as a surface treatment to improve uniformity of paint adhesion. By operating in the alkaline pH range, it was found that flash rusting and/or blush rust were significantly reduced.Type: GrantFiled: December 15, 2010Date of Patent: July 7, 2015Assignee: Bulk Chemicals, Inc.Inventors: Ted M. Schlosser, José B. Rivera
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Patent number: 9039845Abstract: Aqueous compositions useful as pretreatments prior to painting and to prevent the formation of white rust in the uncoated condition include an organopolyphosphonic acid or salt thereof, an organosilane, and a trivalent chromium compound. A method for treating a surface of a zinc-containing metal includes contacting the surface with an aqueous composition including an organopolyphosphonic acid or salt thereof, an organosilane, and a trivalent chromium compound. The composition may also include an agent for reducing hydrophilicity, such as a polyacrylic acid. The aqueous composition has been found to be particularly well-suited for treating a zinc-containing metal to passivate the surface, improve paint adhesion, and/or improve corrosion resistance.Type: GrantFiled: November 4, 2009Date of Patent: May 26, 2015Assignee: Bulk Chemicals, Inc.Inventors: Ted M. Schlosser, Edward M. Musingo
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Publication number: 20150125610Abstract: Aqueous seal coat compositions useful for sealing a pretreated metal surface, comprise water, at least two organo-functional silanes, and optionally a pH-adjusting agent. A process for sealing a pretreated metal surface includes contacting the metal surface with such an aqueous seal coat composition. Preferably, the pH of the seal coat compositions is greater than 5.5.Type: ApplicationFiled: November 1, 2013Publication date: May 7, 2015Applicant: Bulk Chemicals, Inc.Inventor: Richard J. Church
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Patent number: 8728251Abstract: A chromium-free aqueous treatment solution for coating metal surfaces is described. The treatment solution contains fluorocomplex ions of titanium and/or zirconium and molybdate ions, vanadium ions and one or more aromatic carboxylic acids with at least one carboxyl groups and at least two further functional groups, wherein the two further functional groups are selected from the group comprising carboxyl groups, hydroxyl groups, amino groups and nitro groups.Type: GrantFiled: December 7, 2010Date of Patent: May 20, 2014Assignee: Bulk Chemicals, Inc.Inventor: Stephanie Greber
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Publication number: 20140050855Abstract: An acidic, aqueous composition contains a trivalent chromium compound, an organo-functional silane, and a compound of a group IV-B element. The composition protects metal surfaces, preferably aluminum and aluminum alloys, against corrosion and improves their paint adhesion. The trivalent chromium compound may comprise chromium fluoride and optionally others, such as chromium nitrate. The organo-functional silane is preferably an aminopropyltriethoxy silane, and the compound of a group IV-B element is preferably fluorozirconic acid. The composition can either be dried-in-place or rinsed before a further coating layer is applied. The composition may also include at least one polymer having a plurality of both carboxylic functional groups, alone or with hydroxyl groups.Type: ApplicationFiled: October 21, 2013Publication date: February 20, 2014Applicant: Bulk Chemicals, Inc.Inventor: Richard J. Church
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Patent number: 8591670Abstract: An acidic, aqueous composition contains a trivalent chromium compound, an organo-functional silane, and a compound of a group IV-B element. The composition protects metal surfaces, preferably aluminum and aluminum alloys, against corrosion and improves their paint adhesion. The trivalent chromium compound may comprise chromium fluoride and optionally others, such as chromium nitrate. The organo-functional silane is preferably an aminopropyltriethoxy silane, and the compound of a group IV-B element is preferably fluorozirconic acid. The composition can either be dried-in-place or rinsed before a further coating layer is applied. The composition may also include at least one polymer having a plurality of both carboxylic functional groups, alone or with hydroxyl groups.Type: GrantFiled: May 7, 2008Date of Patent: November 26, 2013Assignee: Bulk Chemicals, Inc.Inventor: Richard J. Church
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Patent number: 8449695Abstract: A method of preparing an aqueous composition of a chromium III compound, comprising adding hydrogen peroxide to a mixture comprising water and a chromium VI compound in the presence of at least one acid according to the formula H2GF6, in which G is a Group IV-B element. The composition may contain less than 500 ppm of alkali metal ions and less than 200 ppm of halide ions, relative to chromium and may test negative for chromium VI using s-diphenylcarbazide. The composition may be used for treating a metal surface, among other applications.Type: GrantFiled: November 16, 2011Date of Patent: May 28, 2013Assignee: Bulk Chemicals, Inc.Inventor: José B. Rivera
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Patent number: 8425692Abstract: A composition for forming a protective coating on a metal surface includes water; Cr2(GF6)3 in which G is a Group IV-B element; and at least one polymer having a plurality of carboxylic acid groups and at least one polymer having a plurality of hydroxyl groups, and/or at least one polymer having a plurality of both carboxylic acid and hydroxyl groups; wherein the composition contains less than 500 ppm of alkali metal ions and less than 200 ppm of halide ions relative to chromium. A method of forming a protective coating on a metal surface includes contacting the metal surface with the composition.Type: GrantFiled: May 27, 2010Date of Patent: April 23, 2013Assignee: Bulk Chemicals, Inc.Inventors: José B. Rivera, Richard J. Church
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Patent number: 8425693Abstract: A method of preparing an aqueous composition of a chromium III compound, comprising adding hydrogen peroxide to a mixture comprising water and a chromium VI compound in the presence of at least one acid according to the formula H2GF6, in which G is a Group IV-B element. The composition may contain less than 500 ppm of alkali metal ions and less than 200 ppm of halide ions, relative to chromium and may test negative for chromium VI using s-diphenylcarbazide. The composition may be used for treating a metal surface, among other applications.Type: GrantFiled: November 16, 2011Date of Patent: April 23, 2013Assignee: Bulk Chemicals, Inc.Inventor: José B. Rivera
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Patent number: 8273190Abstract: A method of preparing an aqueous composition of a chromium III compound, comprising adding hydrogen peroxide to a mixture comprising water and a chromium VI compound in the presence of at least one acid according to the formula H2GF6, in which G is a Group IV-B element. The composition may contain less than 500 ppm of alkali metal ions and less than 200 ppm of halide ions, relative to chromium and may test negative for chromium VI using s-diphenylcarbazide. The composition may be used for treating a metal surface, among other applications.Type: GrantFiled: May 29, 2009Date of Patent: September 25, 2012Assignee: Bulk Chemicals, Inc.Inventor: Jose B. Rivera
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Publication number: 20120152754Abstract: Aqueous compositions useful as pretreatments prior to painting and to reduce the formation of rust in the uncoated condition consist essentially of water, an organo-functional silane, a compound of a Group IV-B element, and optionally a polyvinyl alcohol, stabilizing agents, wetting agents, thickeners, and biocides, and have an alkaline pH>7. A process for treating a metal surface includes contacting the surface with such an aqueous composition. The compositions and processes were found to have further benefits in comparison to the zinc phosphate metal pretreatment thought to be the standard in the industry. Preferably, the pH of the compositions is alkaline, which has been found to improve the efficacy of a silane as a surface treatment to improve uniformity of paint adhesion. By operating in the alkaline pH range, it was found that flash rusting and/or blush rust were significantly reduced.Type: ApplicationFiled: December 15, 2010Publication date: June 21, 2012Applicant: BULK CHEMICALS, INC.Inventors: Ted M. Schlosser, José B. Rivera
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Publication number: 20120061249Abstract: A method of preparing an aqueous composition of a chromium III compound, comprising adding hydrogen peroxide to a mixture comprising water and a chromium VI compound in the presence of at least one acid according to the formula H2GF6, in which G is a Group IV-B element. The composition may contain less than 500 ppm of alkali metal ions and less than 200 ppm of halide ions, relative to chromium and may test negative for chromium VI using s-diphenylcarbazide. The composition may be used for treating a metal surface, among other applications.Type: ApplicationFiled: November 16, 2011Publication date: March 15, 2012Applicant: BULK CHEMICALS, INC.Inventor: José B. Rivera
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Publication number: 20120055371Abstract: A method of preparing an aqueous composition of a chromium III compound, comprising adding hydrogen peroxide to a mixture comprising water and a chromium VI compound in the presence of at least one acid according to the formula H2GF6, in which G is a Group IV-B element. The composition may contain less than 500 ppm of alkali metal ions and less than 200 ppm of halide ions, relative to chromium and may test negative for chromium VI using s-diphenylcarbazide. The composition may be used for treating a metal surface, among other applications.Type: ApplicationFiled: November 16, 2011Publication date: March 8, 2012Applicant: BULK CHEMICALS, INC.Inventor: José B. Rivera
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Publication number: 20110293841Abstract: A composition for forming a protective coating on a metal surface includes water; Cr2(GF6)3 in which G is a Group IV-B element; and at least one polymer having a plurality of carboxylic acid groups and at least one polymer having a plurality of hydroxyl groups, and/or at least one polymer having a plurality of both carboxylic acid and hydroxyl groups; wherein the composition contains less than 500 ppm of alkali metal ions and less than 200 ppm of halide ions relative to chromium. A method of forming a protective coating on a metal surface includes contacting the metal surface with the composition.Type: ApplicationFiled: May 27, 2010Publication date: December 1, 2011Applicant: BULK CHEMICALS, INC.Inventors: José B. Rivera, Richard J. Church
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Patent number: 7943563Abstract: A method of removing metallic copper from a steel surface defining a bore or cylinder of a gun is provided. The method involves contacting the surface with a composition comprising a polyphosphonic acid, a hydroxyl-substituted primary amine, and water.Type: GrantFiled: March 22, 2010Date of Patent: May 17, 2011Assignee: Bulk Chemicals, Inc.Inventor: Ted M. Schlosser