Patents Assigned to Industrias Negromex, S.A. de C.V.
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Patent number: 11180639Abstract: The present invention provides a process for making a silica masterbatch that contains hydrophobated silica, solution-made rubber and emulsion-made rubber. Hydrophobated silica is mixed into a latex emulsion. Solution-rubber crumb in an aqueous suspension is mixed into the latex emulsion, which is coagulated, and a crumb is recovered, further homogenized, dried and baled to yield the silica masterbatch. A well-dispersed mixture of hydrophobated silica and emulsion-made rubber is added into a steam distillation step of a solution-rubber process from which a silica masterbatch is recovered. The emulsion-made rubber can be omitted to make a silica masterbatch of solution rubber and silica without emulsion rubber. The silica masterbatch has physical properties similar to those found in a comparable dry-mixed composition, but the silica masterbatch can be incorporated more easily and less expensively into tires and other rubber products than the dry-mixed composition.Type: GrantFiled: July 2, 2019Date of Patent: November 23, 2021Assignee: Industrias Negromex, S.A. de C.V.Inventors: Christopher J. Hardiman, Xuan Fu, Robert J. Scribner, Julian Maldonado Valenzuela
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Publication number: 20190322841Abstract: The present invention provides a process for making a silica masterbatch that contains hydrophobated silica, solution-made rubber and emulsion-made rubber. Hydrophobated silica is mixed into a latex emulsion. Solution-rubber crumb in an aqueous suspension is mixed into the latex emulsion, which is coagulated, and a crumb is recovered, further homogenized, dried and baled to yield the silica masterbatch. A well-dispersed mixture of hydrophobated silica and emulsion-made rubber is added into a steam distillation step of a solution-rubber process from which a silica masterbatch is recovered. The emulsion-made rubber can be omitted to make a silica masterbatch of solution rubber and silica without emulsion rubber. The silica masterbatch has physical properties similar to those found in a comparable dry-mixed composition, but the silica masterbatch can be incorporated more easily and less expensively into tires and other rubber products than the dry-mixed composition.Type: ApplicationFiled: July 2, 2019Publication date: October 24, 2019Applicant: Industrias Negromex, S.A. de C.V.Inventors: Christopher J. Hardiman, Xuan Fu, Robert J. Scribner, Julian Maldonado Valenzuela
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Patent number: 10344146Abstract: The present invention provides a process for making a silica masterbatch that contains hydrophobated silica, solution-made rubber and emulsion-made rubber. Hydrophobated silica is mixed into a latex emulsion. Solution-rubber crumb in an aqueous suspension is mixed into the latex emulsion, which is coagulated, and a crumb is recovered, further homogenized, dried and baled to yield the silica masterbatch. A well-dispersed mixture of hydrophobated silica and emulsion-made rubber is added into a steam distillation step of a solution-rubber process from which a silica masterbatch is recovered. The emulsion-made rubber can be omitted to make a silica masterbatch of solution rubber and silica without emulsion rubber. The silica masterbatch has physical properties similar to those found in a comparable dry-mixed composition, but the silica masterbatch can be incorporated more easily and less expensively into tires and other rubber products than the dry-mixed composition.Type: GrantFiled: July 20, 2017Date of Patent: July 9, 2019Assignee: Industrias Negromex, S.A. de C.V.Inventors: Christopher J. Hardiman, Xuan Fu, Robert J. Scribner, Julian Maldonado Valenzuela
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Publication number: 20170313857Abstract: The present invention provides a process for making a silica masterbatch that contains hydrophobated silica, solution-made rubber and emulsion-made rubber. Hydrophobated silica is mixed into a latex emulsion. Solution-rubber crumb in an aqueous suspension is mixed into the latex emulsion, which is coagulated, and a crumb is recovered, further homogenized, dried and baled to yield the silica masterbatch. A well-dispersed mixture of hydrophobated silica and emulsion-made rubber is added into a steam distillation step of a solution-rubber process from which a silica masterbatch is recovered. The emulsion-made rubber can be omitted to make a silica masterbatch of solution rubber and silica without emulsion rubber. The silica masterbatch has physical properties similar to those found in a comparable dry-mixed composition, but the silica masterbatch can be incorporated more easily and less expensively into tires and other rubber products than the dry-mixed composition.Type: ApplicationFiled: July 20, 2017Publication date: November 2, 2017Applicant: Industrias Negromex, S.A. de C.V.Inventors: Christopher J. Hardiman, Xuan Fu, Robert J. Scribner, Julian Maldonado Valenzuela
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Patent number: 9738776Abstract: The present invention provides a process for making a silica masterbatch that contains hydrophobated silica, solution-made rubber and emulsion-made rubber. Hydrophobated silica is mixed into a latex emulsion. Solution-rubber crumb in an aqueous suspension is mixed into the latex emulsion, which is coagulated, and a crumb is recovered, further homogenized, dried and baled to yield the silica masterbatch. A well-dispersed mixture of hydrophobated silica and emulsion-made rubber is added into a steam distillation step of a solution-rubber process from which a silica masterbatch is recovered. The emulsion-made rubber can be omitted to make a silica masterbatch of solution rubber and silica without emulsion rubber. The silica masterbatch has physical properties similar to those found in a comparable dry-mixed composition, but the silica masterbatch can be incorporated more easily and less expensively into tires and other rubber products than the dry-mixed composition.Type: GrantFiled: February 19, 2015Date of Patent: August 22, 2017Assignee: Industrias Negromex, S.A. de C.V.Inventors: Christopher J. Hardiman, Xuan Fu, Robert J. Scribner, Julian Maldonado Valenzuela
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Publication number: 20150252176Abstract: The present invention provides a process for making a silica masterbatch that contains hydrophobated silica, solution-made rubber and emulsion-made rubber. Hydrophobated silica is mixed into a latex emulsion. Solution-rubber crumb in an aqueous suspension is mixed into the latex emulsion, which is coagulated, and a crumb is recovered, further homogenized, dried and baled to yield the silica masterbatch. A well-dispersed mixture of hydrophobated silica and emulsion-made rubber is added into a steam distillation step of a solution-rubber process from which a silica masterbatch is recovered. The emulsion-made rubber can be omitted to make a silica masterbatch of solution rubber and silica without emulsion rubber. The silica masterbatch has physical properties similar to those found in a comparable dry-mixed composition, but the silica masterbatch can be incorporated more easily and less expensively into tires and other rubber products than the dry-mixed composition.Type: ApplicationFiled: February 19, 2015Publication date: September 10, 2015Applicant: Industrias Negromex, S.A. de C.V.Inventors: Christopher J. Hardiman, Xuan Fu, Robert J. Scribner, Julian Maldonado Valenzuela
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Patent number: 8865799Abstract: The present invention provides a process for making silica-filled rubber masterbatch using silica hydrophobated with a trimethoxy silane coupling agent that is soluble in an alcohol-water solution containing at least about 70 wt % water. One embodiment uses a mixture of trimethoxy silanes, one or more of which react with rubber to bond the silica to the rubber, and one or more of which do not react with rubber, but do hydrophobate the silica. Hydrophobated silica is mixed with latex polymer and incorporated into rubber during coagulation of the latex, which is preferably coagulated with calcium chloride. The present invention further provides a process for making the trimethoxy silane coupling agents. Preferred trimethoxy silane coupling agents include bis-(3-trimethoxysilylpropyl)-disulfide and bis-(3-trimethoxysilylpropyl)-tetrasulfide.Type: GrantFiled: January 22, 2013Date of Patent: October 21, 2014Assignees: Industrias Negromex, S.A. de C.V., Cooper Tire & Rubber CompanyInventors: Peter J. Wallen, Christopher J. Hardiman, Howard A. Colvin, Gregory C. Bowman, Jose Eduardo Rojas Reyna
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Patent number: 8357733Abstract: The present invention provides a process for making silica-filled rubber masterbatch using silica hydrophobated with a trimethoxy silane coupling agent that is soluble in an alcohol-water solution containing at least about 70 wt % water. One embodiment uses a mixture of trimethoxy silanes, one or more of which react with rubber to bond the silica to the rubber, and one or more of which do not react with rubber, but do hydrophobate the silica. Hydrophobated silica is mixed with latex polymer and incorporated into rubber during coagulation of the latex, which is preferably coagulated with calcium chloride. The present invention further provides a process for making the trimethoxy silane coupling agents. Preferred trimethoxy silane coupling agents include bis-(3-trimethoxysilylpropyl)-disulfide and bis-(3-trimethoxysilylpropyl)-tetrasulfide.Type: GrantFiled: July 23, 2009Date of Patent: January 22, 2013Assignees: Industrias Negromex, S.A. de C.V., Cooper Tire & Rubber CompanyInventors: Peter J. Wallen, Gregory C. Bowman, Howard A. Colvin, Christopher J. Hardiman, José Eduardo Rojas Reyna
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Publication number: 20120077916Abstract: An emulsion polymerization copolymer comprising 59-77 phr butadiene, 10-16 phr styrene; 10-16 phr acrylonitrile; and from 3-9 phr methacrylic acid is soluble in acetone for U.S. EPA-exempt, low-VOC emissions, while also soluble in toluene. The composition is formulated with a tackifying resin; a plasticizer oil; and a U.S. EPA-exempt solvent, preferably acetone, to make an adhesive. The formulation is particularly useful as a pressure sensitive adhesive for tape and for making shoes.Type: ApplicationFiled: September 28, 2011Publication date: March 29, 2012Applicant: INDUSTRIAS NEGROMEX, S.A. DE C.VInventors: José Maria Islas Manzur, Christopher J. Hardiman, Enrique Alejandro Rodríguez Resendiz