Patents by Inventor Brian W. Kolthammer
Brian W. Kolthammer 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: 11555084Abstract: Embodiments of methods for producing a trimodal polymer in a solution polymerization process comprise three solution polymerization reactors organized in parallel or in series.Type: GrantFiled: December 19, 2018Date of Patent: January 17, 2023Assignee: Dow Global Technologies LLCInventors: Sarat Munjal, Brian W. Kolthammer, Mehmet Demirors, Michael D. Turner, Joshua B. Gaubert, Yijian Lin
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Publication number: 20210079139Abstract: Embodiments of methods for producing a trimodal polymer in a solution polymerization process comprise three solution polymerization reactors organized in parallel or in series.Type: ApplicationFiled: December 19, 2018Publication date: March 18, 2021Applicant: Dow Global Technologies LLCInventors: Sarat Munjal, Brian W. Kolthammer, Mehmet Demirors, Michael D. Turner, Joshua B. Gaubert, Yijian Lin
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Patent number: 10858463Abstract: The instant invention provides an improved process for producing pelletized polymer compositions, and pelletized polymer compositions. The process for producing a pelletized polymer composition according to the present invention comprises: (1) polymerizing one or more alpha-olefins in one or more solution reactors thereby producing a molten polymer composition comprising one or more solvents; (2) removing at least a portion of said one or more solvents thereby forming a polymer composition having a low solvent content (typically less than 1,000 parts of solvent per million of polymer on a weight basis); (3) removing heat from said polymer composition having low solvent content to a temperature in the range of equal to or greater than the crystallization point of the polymer composition having low solvent content to less than or equal to a temperature in the range of from (the crystallization point of the polymer composition having low solvent content+20° C.Type: GrantFiled: June 12, 2014Date of Patent: December 8, 2020Assignee: DOW GLOBAL TECHNOLOGIES LLCInventors: Brian W. Kolthammer, Michael J. Zogg, Jr.
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Publication number: 20170129976Abstract: The instant invention provides an improved process for producing pelletized polymer compositions, and pelletized polymer compositions. The process for producing a pelletized polymer composition according to the present invention comprises: (1) polymerizing one or more alpha-olefins in one or more solution reactors thereby producing a molten polymer composition comprising one or more solvents; (2) removing at least a portion of said one or more solvents thereby forming a polymer composition having a low solvent content (typically less than 1,000 parts of solvent per million of polymer on a weight basis); (3) removing heat from said polymer composition having low solvent content to a temperature in the range of equal to or greater than the crystallization point of the polymer composition having low solvent content to less than or equal to a temperature in the range of from (the crystallization point of the polymer composition having low solvent content+20° C.Type: ApplicationFiled: June 12, 2014Publication date: May 11, 2017Inventors: Brian W. Kolthammer, Michael J. Zogg, JR.
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Patent number: 8846991Abstract: The subject invention pertains to homogeneous liquid low molecular weight ethylene/alpha-olefin polymers having a number average molecular weight (Mn) as determined by gel permeation chromatography, of less than 25,000, a total crystallinity, as measured by DSC, of less than 10%, and a pour point, as measured by ASTM D97, of less than 50° C. The subject invention also pertains to homogeneous gel-like low molecular weight ethylene/alpha-olefin polymers having a number average molecular weight (Mn) as determined by gel permeation chromatography, of less than 25,000, a total crystallinity, as measured by DSC, of less than 50%, and a pour point, as measured by ASTM D97, of less than 90° C.Type: GrantFiled: June 17, 2010Date of Patent: September 30, 2014Assignee: Dow Global Technologies LLCInventors: Teresa P. Karjala, Selim Yalvac, Thomas Karjala, Daniel D. VanderLende, Brian W. Kolthammer, James C. Stevens, Charles F. Diehl
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Patent number: 8420742Abstract: The present invention relates to an ethylene/?-olefin interpolymer product comprising at least one ?-olefin interpolymerized with ethylene and, characterized in at least one aspect, as having improved properties when utilized in a hot melt adhesive formulation. The invention also relates to a process for manufacturing the interpolymer product wherein the process comprises employing two or more single site catalyst systems in at least one reaction environment (or reactor) and wherein the at least two catalyst systems have (a) different comonomer incorporation capabilities or reactivities and/or (b) different termination kinetics, both when measured under the same polymerization conditions. The interpolymer products are useful, for example, in applications such as hot melt adhesives, and also for impact, bitumen and asphalt modification, adhesives, dispersions or latexes and fabricated articles such as, but not limited to, foams, films, sheet, moldings, thermoforms, profiles and fibers.Type: GrantFiled: January 11, 2012Date of Patent: April 16, 2013Assignee: Dow Global Technologies LLCInventors: Teresa P. Karjala, Brian W. Kolthammer
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Publication number: 20120245400Abstract: Methods for producing alpha-olefins. The methods include selectively isomerizing an alpha-olefin to a mixture of beta-olefins and ethenolyzing at least a portion of the mixture of beta-olefins to an alpha-olefin.Type: ApplicationFiled: December 14, 2010Publication date: September 27, 2012Inventors: Thomas P. Clark, Kevin A. Frazier, Francis J. Timmers, Brian W. Kolthammer
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Patent number: 8211949Abstract: Novel mixtures of long-chain (C10-C20) olefins are functionalized by conversion to aldehydes using an OXO process, or to sulfates, sulfonates, sulfones, sulfides, or sulfoxides by direct sulfonation. The aldehydes may then be hydrogenated to form alcohols, or aminated to form amines or amides. The olefins starting mixture may be acquired as a byproduct of the tetramerization of ethylene in the presence of certain chromium-containing tetramerization catalysts. The functionalized mixtures, and derivatives prepared therefrom such as alkoxylates prepared from the alcohols, may be useful as surfactants that may offer improved performance in many applications, while their preparation based on a byproduct mixture reduces their cost and also reduces waste-handling issues for this non-targeted stream.Type: GrantFiled: September 16, 2008Date of Patent: July 3, 2012Assignee: Dow Global Technologies LLCInventors: Pierre T. Varineau, Brian W. Kolthammer, Aaron W. Sanders, David A. Wilson, Kara S. Weber, Robert Kirk Thompson, Cynthia L. Rand, Thomas C. Eisenschmid
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Publication number: 20120108777Abstract: The present invention relates to an ethylene/?-olefin interpolymer product comprising at least one ?-olefin interpolymerized with ethylene and, characterized in at least one aspect, as having improved properties when utilized in a hot melt adhesive formulation. The invention also relates to a process for manufacturing the interpolymer product wherein the process comprises employing two or more single site catalyst systems in at least one reaction environment (or reactor) and wherein the at least two catalyst systems have (a) different comonomer incorporation capabilities or reactivities and/or (b) different termination kinetics, both when measured under the same polymerization conditions. The interpolymer products are useful, for example, in applications such as hot melt adhesives, and also for impact, bitumen and asphalt modification, adhesives, dispersions or latexes and fabricated articles such as, but not limited to, foams, films, sheet, moldings, thermoforms, profiles and fibers.Type: ApplicationFiled: January 11, 2012Publication date: May 3, 2012Applicant: Dow Global Technologies LLCInventors: Teresa P. Karjala, Brian W. Kolthammer
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Patent number: 8119747Abstract: The present invention relates to an ethylene/?-olefin interpolymer product comprising at least one ?-olefin interpolymerized with ethylene and, characterized in at least one aspect, as having improved properties when utilized in a hot melt adhesive formulation. The invention also relates to a process for manufacturing the interpolymer product wherein the process comprises employing two or more single site catalyst systems in at least one reaction environment (or reactor) and wherein the at least two catalyst systems have (a) different comonomer incorporation capabilities or reactivities and/or (b) different termination kinetics, both when measured under the same polymerization conditions. The interpolymer products are useful, for example, in applications such as hot melt adhesives, and also for impact, bitumen and asphalt modification, adhesives, dispersions or latexes and fabricated articles such as, but not limited to, foams, films, sheet, moldings, thermoforms, profiles and fibers.Type: GrantFiled: March 18, 2009Date of Patent: February 21, 2012Assignee: Dow Global Technologies LLCInventors: Teresa P. Karjala, Brian W. Kolthammer
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Publication number: 20100256427Abstract: The subject invention pertains to homogeneous liquid low molecular weight ethylene/alpha-olefin polymers having a number average molecular weight (Mn) as determined by gel permeation chromatography, of less than 25,000, a total crystallinity, as measured by DSC, of less than 10%, and a pour point, as measured by ASTM D97, of less than 50° C. The subject invention also pertains to homogeneous gel-like low molecular weight ethylene/alpha-olefin polymers having a number average molecular weight (Mn) as determined by gel permeation chromatography, of less than 25,000, a total crystallinity, as measured by DSC, of less than 50%, and a pour point, as measured by ASTM D97, of less than 90° C.Type: ApplicationFiled: June 17, 2010Publication date: October 7, 2010Applicant: Dow Global Technologies Inc.Inventors: Teresa P. Karjala, Selim Yalvac, Thomas Karjala, Daniel D. VanderLende, Brian W. Kolthammer, James C. Stevens, Charles F. Diehl
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Patent number: 7795365Abstract: The subject invention pertains to homogeneous liquid low molecular weight ethylene/alpha-olefin polymers having a number average molecular weight (Mn) as determined by gel permeation chromatography, of less than 25,000, a total crystallinity, as measured by DSC, of less than 10%, and a pour point, as measured by ASTM D97, of less than 50° C. The subject invention also pertains to homogeneous gel-like low molecular weight ethylene/alpha-olefin polymers having a number average molecular weight (Mn) as determined by gel permeation chromatography, of less than 25,000, a total crystallinity, as measured by DSC, of less than 50%, and a pour point, as measured by ASTM D97, of less than 90° C.Type: GrantFiled: October 1, 2003Date of Patent: September 14, 2010Assignee: Dow Global Technologies Inc.Inventors: Teresa P. Karjala, Selim Yalvac, Thomas Karjala, Daniel D. Vanderlende, Brian W. Kolthammer, James C. Stevens, Charles F. Diehl
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Publication number: 20090078910Abstract: Novel mixtures of long-chain (C10-C20) olefins are functionalized by conversion to aldehydes using an OXO process, or to sulfates, sulfonates, sulfones, sulfides, or sulfoxides by direct sulfonation. The aldehydes may then be hydrogenated to form alcohols, or aminated to form amines or amides. The olefins starting mixture may be acquired as a byproduct of the tetramerization of ethylene in the presence of certain chromium-containing tetramerization catalysts. The functionalized mixtures, and derivatives prepared therefrom such as alkoxylates prepared from the alcohols, may be useful as surfactants that may offer improved performance in many applications, while their preparation based on a byproduct mixture reduces their cost and also reduces waste-handling issues for this non-targeted stream.Type: ApplicationFiled: September 16, 2008Publication date: March 26, 2009Inventors: Pierre T. Varineau, Brian W. Kolthammer, Aaron W. Sanders, David A. Wilson, Kara S. Weber, Robert Kirk Thompson, Cynthia L. Rand, Thomas C. Eisenschmid
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Publication number: 20030120012Abstract: A process for making an interpolymer product that includes contacting at least one &agr;-olefinic monomer and at least one vinyl or vinylidene monomer in the presence of at least a first single site catalyst and second single site catalyst in a reactor system, and effectuating the polymerization of the monomers in the reactor.Type: ApplicationFiled: December 23, 2002Publication date: June 26, 2003Applicant: The Dow Chemical CompanyInventors: Yunwa W. Cheung, Martin J. Guest, Robert K. Rosen, Brian W. Kolthammer
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Patent number: 6552148Abstract: The present invention relates to a thermoplastic interpolymer product comprising an &agr;-olefin interpolymerized with at least one vinyl or vinylidene aromatic monomer and/or at least one hindered aliphatic or cycloaliphatic vinyl or vinylidene aromatic monomer and, in at least one aspect, is characterized as having substantially synergistic thermal properties. The invention also relates to a process for manufacturing the interpolymer product wherein the process employs two or more single site or metallocene catalyst systems in at least one reaction environment and wherein at least two of the catalyst systems have (a) different monomer incorporation capabilities or reactivities and (b) the same or, optionally, different monomer sequencing and/or tacticity characteristics.Type: GrantFiled: February 17, 2000Date of Patent: April 22, 2003Assignee: The Dow Chemical CompanyInventors: Yunwa W. Cheung, Martin J. Guest, Robert K. Rosen, Brian W. Kolthammer
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Patent number: 5965756Abstract: Group 4 metal constrained geometry complexes comprising a fused ring indenyl derivative ligand, catalytic derivatives thereof, processes for preparing the same and their use as components of olefin polymerization catalysts are disclosed.Type: GrantFiled: October 14, 1997Date of Patent: October 12, 1999Assignee: The Dow Chemical CompanyInventors: Mark H. McAdon, Jasson T. Patton, Peter N. Nickias, Ravi B. Shankar, Francis J. Timmers, Brian W. Kolthammer, Daniel D. VanderLende, Steven M. Ueligger