Patents by Inventor Dennis R. Brumbaugh
Dennis R. Brumbaugh 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: 11168160Abstract: Embodiments of 1,4-polybutadiene rubber compositions useful at low temperatures are provided, wherein the 1,4-polybutadiene incorporated therein comprises a cis content of at least 85 to about 92%, a vinyl content of at about 1% to about 5%, and a trans content of about 3 to about 12%, and wherein the 1,4-polybutadiene has an enthalpy of melting ?Hm of about 5 to about 25 J/g° C. as measured via differential scanning calorimetry (DSC).Type: GrantFiled: April 30, 2020Date of Patent: November 9, 2021Assignee: Bridgestone CorporationInventors: Hyeonjae Kim, Joshua S. Dickstein, Dennis R. Brumbaugh, Zengquan Qin
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Patent number: 11117987Abstract: Vulcanizates with desirable properties can be obtained from compounds incorporating polymers that include hydroxyl group-containing aryl functionalities. The functionalities can be incorporated by using any or all of appropriate initiators, monomers and optional terminating compounds. Such polymers exhibit excellent interactivity with both conventional and non-conventional fillers.Type: GrantFiled: March 10, 2019Date of Patent: September 14, 2021Assignee: Bridgestone CorporationInventors: Xiao-Dong Pan, Zengquan Qin, Yuan-Yong Yan, Dennis R. Brumbaugh
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Patent number: 11028195Abstract: Vulcanizates with desirable properties can be obtained from compounds incorporating polymers that include hydroxyl group-containing aryl functionalities. The functionalities can be incorporated by using any or all of appropriate initiators, monomers and terminating compounds. Such polymers exhibit excellent interactivity with both conventional and non-conventional fillers.Type: GrantFiled: March 10, 2019Date of Patent: June 8, 2021Assignee: Bridgestone CorporationInventors: Xiao-Dong Pan, Zengquan Qin, Yuan-Yong Yan, Dennis R. Brumbaugh, Jason T. Poulton
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Patent number: 10858502Abstract: A wax-polymer compound includes (a) a polymer component that is a polymerized unsaturated monomer, optionally copolymerized with a vinyl-aromatic monomer, and (b) a halogenated hydrocarbon wax component. The polymer component is grafted to the halogenated hydrocarbon wax component, and the wax-polymer compound has a number average molecular weight of about 1,000 to about 100,000. A method of making the wax-polymer compound and a coated silica particle are also disclosed.Type: GrantFiled: December 3, 2018Date of Patent: December 8, 2020Assignee: Bridgestone CorporationInventors: Yaohong Chen, Xiao-Dong Pan, Dennis R. Brumbaugh, Edward D. Kelley
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Publication number: 20200255558Abstract: Embodiments of 1,4-polybutadiene rubber compositions useful at low temperatures are provided, wherein the 1,4-polybutadiene incorporated therein comprises a cis content of at least 85 to about 92%, a vinyl content of at about 1% to about 5%, and a trans content of about 3 to about 12%, and wherein the 1,4-polybutadiene has an enthalpy of melting ?Hm of about 5 to about 25 J/g° C. as measured via differential scanning calorimetry (DSC).Type: ApplicationFiled: April 30, 2020Publication date: August 13, 2020Applicant: Bridgestone CorporationInventors: Hyeonjae Kim, Joshua S. Dickstein, Dennis R. Brumbaugh, Zengquan Qin
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Patent number: 10640589Abstract: Embodiments of 1,4-polybutadiene rubber compositions useful at low temperatures are provided, wherein the 1,4-polybutadiene incorporated therein comprises a cis content of at least 85 to about 92%, a vinyl content of at about 1% to about 5%, and a trans content of about 3 to about 12%, and wherein the 1,4-polybutadiene has an enthalpy of melting ?Hm of about 5 to about 25 J/g° C. as measured via differential scanning calorimetry (DSC).Type: GrantFiled: December 7, 2016Date of Patent: May 5, 2020Assignee: Bridgestone CorporationInventors: Hyeonjae Kim, Joshua S. Dickstein, Dennis R. Brumbaugh, Zengquan Qin
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Publication number: 20190322777Abstract: Vulcanizates with desirable properties can be obtained from compounds incorporating polymers that include hydroxyl group-containing aryl functionalities. The functionalities can be incorporated by using any or all of appropriate initiators, monomers and optional terminating compounds. Such polymers exhibit excellent interactivity with both conventional and non-conventional fillers.Type: ApplicationFiled: March 10, 2019Publication date: October 24, 2019Inventors: Xiao-Dong Pan, Zengquan Qin, Yuan-Yong Yan, Dennis R. Brumbaugh
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Publication number: 20190233557Abstract: Vulcanizates with desirable properties can be obtained from compounds incorporating polymers that include hydroxyl group-containing aryl functionalities. The functionalities can be incorporated by using any or all of appropriate initiators, monomers and terminating compounds. Such polymers exhibit excellent interactivity with both conventional and non-conventional fillers.Type: ApplicationFiled: March 10, 2019Publication date: August 1, 2019Inventors: Xiao-Dong Pan, Zengquan Qin, Yuan-Yong Yan, Dennis R. Brumbaugh, Jason T. Poulton
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Publication number: 20190119475Abstract: A wax-polymer compound includes (a) a polymer component that is a polymerized unsaturated monomer, optionally copolymerized with a vinyl-aromatic monomer, and (b) a halogenated hydrocarbon wax component. The polymer component is grafted to the halogenated hydrocarbon wax component, and the wax-polymer compound has a number average molecular weight of about 1,000 to about 100,000. A method of making the wax-polymer compound and a coated silica particle are also disclosed.Type: ApplicationFiled: December 3, 2018Publication date: April 25, 2019Applicant: Bridgestone CorporationInventors: Yaohong CHEN, Xiao-Dong PAN, Dennis R. BRUMBAUGH, Edward D. KELLEY
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Patent number: 10227425Abstract: Vulcanizates with desirable properties can be obtained from compounds incorporating polymers that include hydroxyl group-containing aryl functionalities. The functionalities can be incorporated by using any or all of appropriate initiators, monomers and optional terminating compounds. Such polymers exhibit excellent interactivity with both conventional and non-conventional fillers.Type: GrantFiled: October 26, 2014Date of Patent: March 12, 2019Assignee: Bridgestone CorporationInventors: Yuan-Yong Yan, Zengquan Qin, Xiao-Dong Pan, Dennis R. Brumbaugh
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Publication number: 20180362679Abstract: Embodiments of 1,4-polybutadiene rubber compositions useful at low temperatures are provided, wherein the 1,4-polybutadiene incorporated therein comprises a cis content of at least 85 to about 92%, a vinyl content of at about 1% to about 5%, and a trans content of about 3 to about 12%, and wherein the 1,4-polybutadiene has an enthalpy of melting ?Hm of about 5 to about 25 J/g° C. as measured via differential scanning calorimetry (DSC).Type: ApplicationFiled: December 7, 2016Publication date: December 20, 2018Applicant: Bridgestone CorporationInventors: Hyeonjae Kim, Josha S. Dickstein, Dennis R. Brumbaugh, Zengquan Qin
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Patent number: 10144794Abstract: A wax-polymer compound includes (a) a polymer component that is a polymerized unsaturated monomer, optionally copolymerized with a vinyl-aromatic monomer, and (b) a halogenated hydrocarbon wax component. The polymer component is grafted to the halogenated hydrocarbon wax component, and the wax-polymer compound has a number average molecular weight of about 1,000 to about 100,000, A method of making the wax-polymer compound and a coated silica particle are also disclosed. A rubber composition includes a rubber elastomer comprising a polymerized unsaturated monomer and optionally a polymerized vinyl-aromatic monomer, the elastomer having a number average molecular weight of about 100,000 to about 1,000,000. It further includes a filler in an amount of about 5 to about 200 phr, the filler comprising carbon black, silica, or both; and a wax-polymer additive.Type: GrantFiled: December 22, 2015Date of Patent: December 4, 2018Assignee: Bridgestone CorporationInventors: Yaohong Chen, Xiao-Dong Pan, Dennis R. Brumbaugh, Edward D. Kelley
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Publication number: 20170369621Abstract: A wax-polymer compound includes (a) a polymer component that is a polymerized unsaturated monomer, optionally copolymerized with a vinyl-aromatic monomer, and (b) a halogenated hydrocarbon wax component. The polymer component is grafted to the halogenated hydrocarbon wax component, and the wax-polymer compound has a number average molecular weight of about 1,000 to about 100,000, A method of making the wax-polymer compound and a coated silica particle are also disclosed. A rubber composition includes a rubber elastomer comprising a polymerized unsaturated monomer and optionally a polymerized vinyl-aromatic monomer, the elastomer having a number average molecular weight of about 100,000 to about 1,000,000. It further includes a filler in an amount of about 5 to about 200 phr, the filler comprising carbon black, silica, or both; and a wax-polymer additive.Type: ApplicationFiled: December 22, 2015Publication date: December 28, 2017Applicant: Bridgestone CorporationInventors: Yaohong CHEN, Xiao-Dong PAN, Dennis R. BRUMBAUGH, Edward D. KELLEY
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Patent number: 9469710Abstract: A method for preparing a functionalized polymer, the method comprising the steps of: (i) polymerizing monomer with an anionic initiator to form a reactive polymer; and (ii) reacting the reactive polymer with a nitrile compound containing a protected amino group, where the protected amino group is directly attached to a moiety selected from the group consisting of acyclic moieties, heterocyclic moieties, and non-aromatic cyclic moieties.Type: GrantFiled: January 28, 2015Date of Patent: October 18, 2016Assignee: Bridgestone CorporationInventors: Steven Luo, Eiju Suzuki, Dennis R. Brumbaugh
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Publication number: 20150148489Abstract: A method for preparing a functionalized polymer, the method comprising the steps of: (i) polymerizing monomer with an anionic initiator to form a reactive polymer; and (ii) reacting the reactive polymer with a nitrile compound containing a protected amino group, where the protected amino group is directly attached to a moiety selected from the group consisting of acyclic moieties, heterocyclic moieties, and non-aromatic cyclic moieties.Type: ApplicationFiled: January 28, 2015Publication date: May 28, 2015Applicant: BRIDGESTONE CORPORATIONInventors: Steven LUO, Eiju SUZUKI, Dennis R. BRUMBAUGH
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Publication number: 20150141582Abstract: Vulcanizates with desirable properties can be obtained from compounds incorporating polymers that include hydroxyl group-containing aryl functionalities. The functionalities can be incorporated by using any or all of appropriate initiators, monomers and optional terminating compounds. Such polymers exhibit excellent interactivity with both conventional and non-conventional fillers.Type: ApplicationFiled: October 26, 2014Publication date: May 21, 2015Inventors: Yuan-Yong Yan, Zengquan Qin, Xiao-Dong Pan, Dennis R. Brumbaugh
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Patent number: 8962766Abstract: A method for preparing a functionalized polymer, the method comprising the steps of: (i) polymerizing monomers to form a reactive polymer, and (ii) reacting the reactive polymer with a protected polyhydrazone compound.Type: GrantFiled: September 17, 2012Date of Patent: February 24, 2015Assignee: Bridgestone CorporationInventors: Steven Luo, Joshua S. Dickstein, Dennis R. Brumbaugh
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Patent number: 8871871Abstract: Vulcanizates with desirable properties can be obtained from compounds incorporating polymers that include hydroxyl group-containing aryl functionalities. The functionalities can be incorporated by using any or all of appropriate initiators, monomers and optional terminating compounds. Such polymers exhibit excellent interactivity with both conventional and non-conventional fillers.Type: GrantFiled: December 28, 2008Date of Patent: October 28, 2014Assignee: Bridgestone CorporationInventors: Xiao-Dong Pan, Zengquan Qin, Yuan-Yong Yan, Dennis R. Brumbaugh, Jason T. Poulton
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Patent number: 8841376Abstract: A rubber formulation with good wet traction properties includes one or more elastomers and at least two types of particulate filler materials including at least one of which has a relatively high free surface energy in water (i.e., a supplemental filler). The formulation containing the supplemental filler(s) can provide a vulcanizate that has a British pendulum (skid) number that is at least ˜5% greater than that of a vulcanizate made from an essentially identical formulation that does not contain the supplemental filler(s). Also provided is a method for providing such a formulation which involves identifying one or more supplemental fillers having relatively high free surface energies in water, replacing at least 15% (by wt.) of one or more of the conventional particulate fillers in the formulation with an approximately equivalent volume of supplemental filler particles, and providing the modified formulation.Type: GrantFiled: December 31, 2007Date of Patent: September 23, 2014Assignee: Bridgestone CorporationInventors: Xiao-Dong Pan, Pat Sadhukhan, Hiroshi Mouri, Michael W. Hayes, Dennis R. Brumbaugh
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Patent number: 8735494Abstract: A method for preparing a polydiene polymer, the method comprising: (i) preparing an active polymerization mixture by introducing conjugated diene monomer, and optionally monomer copolymerizable therewith, and a lanthanide-based catalyst system; (ii) adding a nitrile compound containing a protected amino group to the active polymerization mixture; and (iii) adding a co-functionalizing agent to the active polymerization mixture.Type: GrantFiled: November 27, 2012Date of Patent: May 27, 2014Assignee: Bridgestone CorporationInventors: Steven Luo, Eiju Suzuki, Dennis R. Brumbaugh