Patents by Inventor Georg G. A. Bohm
Georg G. A. Bohm 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: 20090156757Abstract: A polymer nanoparticle is provided. The nanoparticle includes an inner layer having alkenylbenzene monomer units. The nanoparticle further includes an outer layer having monomer units selected from conjugated dienes, alkylenes, alkenylbenzenes, and mixtures thereof. The nanoparticle has at least one functional group associated with the outer layer. Applications of use as additives for rubber, including the rubber compositions, are also provided.Type: ApplicationFiled: March 2, 2004Publication date: June 18, 2009Inventors: Xiaorong Wang, James E. Hall, Georg G.A. Bohm, Chenchy Jeffrey Lin
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Patent number: 7378465Abstract: A tire component including a tire tread that comprises a vulcanized rubber, a rubber filler, and a modified rubber, where the modified rubber i) contains pendent or functional groups that contain carboxylic acid or anhydride groups, ii) has pendently grafted thereto a polymerized metal salt of an unsaturated carboxylic acid, or iii) contains both i and ii. The use of such modified rubbers in tire components advantageously increases the G? of such components.Type: GrantFiled: April 4, 2002Date of Patent: May 27, 2008Assignee: Bridgestone CorporationInventors: Chenchy Jeffrey Lin, William Hergenrother, Daniel Graves, Georg G. A. Böhm
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Patent number: 7250476Abstract: A multi-functional polymer defined by the formula (Q—RnZ—P2—Y where (Q—R)n is a functionality cluster, Q is a functional group, R is a multi-valent organic group, P2 is a long-chain polymer, n is an integer from about 2 to about 10, Y is a proton, a weak functional group, or a selective functional group, and Z is a branch point where the functionality clusters join the long-chain polymer.Type: GrantFiled: August 1, 2003Date of Patent: July 31, 2007Assignee: Bridgestone CorporationInventors: Georg G. A. Böhm, William L. Hergenrother, Christine M. Rademacher
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Patent number: 7112369Abstract: A polymer nanoparticle is provided. The nanoparticle includes an inner layer having alkenylbenzene monomer units. The nanoparticle further includes an outer layer having monomer units selected from conjugated dienes, alkylenes, alkenylbenzenes, and mixtures thereof. The nanoparticle has at least one functional group associated with the outer layer. The nanoparticle further has at least one metal complexed with said functional group. The nanoparticles can be used as a templates for preparation of nano-sized metal crystals and polymer-metal nanocomposite.Type: GrantFiled: March 2, 2004Date of Patent: September 26, 2006Assignee: Bridgestone CorporationInventors: Xiaorong Wang, James E. Hall, Georg G. A. Böhm, Chenchy Jeffrey Lin
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Patent number: 6653936Abstract: A monitoring device and patch combination used to monitor the conditions of a pneumatic tire having an innerliner includes a monitoring device and patch. The monitoring device includes a first connection element that is connected to the monitoring device. The patch includes an antenna that is connected to a second connection element. In one embodiment of the invention, the first connection element is in the form of a socket while the second connection element is in the form of a plug. The connection elements allow the monitoring device and patch to be separately fabricated and the direct physical connection between the antenna and the monitoring device to be formed when the combination is connected to the innerliner of the tire. In another embodiment, a plug extends from the bottom of an encapsulated monitoring device and is aligned with a socket on the patch. The connection between the plug and the socket occurs automatically when the encapsulated monitoring device is aligned with and connected to the patch.Type: GrantFiled: March 18, 2002Date of Patent: November 25, 2003Assignee: Bridgestone/Firestone North American Tire, LLCInventors: Georg G. A. Bohm, John D. Rensel, Russell W. Koch, John L. Turner, Robert J. Trew
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Publication number: 20030111770Abstract: A method for forming a vulcanizable composition of matter, the method comprising providing a polymer cement or latex comprising at least one rubber, adding at least one processing aid to the cement or latex to form a modified rubber cement or latex, isolating the rubber and at least one processing aid to form a premix, and mixing the premix with carbon black.Type: ApplicationFiled: December 13, 2001Publication date: June 19, 2003Applicant: Bridgestone Corp.Inventors: Georg G. A. Bohm, Anthony J. Ramic, James D. Ulmer, William L. Hergenrother, Christine M. Rademacher, David F. Lawson, Sunil B. Sarkar
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Patent number: 6579929Abstract: A surface stabilized, non-agglomerated silica is provided. The silica is prepared by the method of providing non-agglomerated silica, and then treating the surface of the silica, thereby substantially preventing agglomeration of silica. The surface of the silica may be treated with a hydrophobating agent, such as a silane, or an alcohol. Different embodiments of the invention illustrate that the hydrophobating agent or alcohol can be added at different points within the process of forming the surface stabilized, non-agglomerated silica. The surface stabilized, non-agglomerated silica has a size in the nanometer range. The surface stabilized, non-agglomerated silica can be used as an additive in any application that uses silica, such as reinforcing fillers for elastomeric compositions, foods, drugs, dentifrices, inks, toners, coatings and abrasives.Type: GrantFiled: January 19, 2000Date of Patent: June 17, 2003Assignee: Bridgestone CorporationInventors: William M. Cole, Timothy L. Tartamella, Sanjeev D. Naik, William L. Hergenrother, Georg G. A. Bohm
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Publication number: 20020093421Abstract: A monitoring device and patch combination used to monitor the conditions of a pneumatic tire having an innerliner includes a monitoring device and patch. The monitoring device includes a first connection element that is connected to the monitoring device. The patch includes an antenna that is connected to a second connection element. In one embodiment of the invention, the first connection element is in the form of a socket while the second connection element is in the form of a plug. The connection elements allow the monitoring device and patch to be separately fabricated and the direct physical connection between the antenna and the monitoring device to be formed when the combination is connected to the innerliner of the tire. In another embodiment, a plug extends from the bottom of an encapsulated monitoring device and is aligned with a socket on the patch. The connection between the plug and the socket occurs automatically when the encapsulated monitoring device is aligned with and connected to the patch.Type: ApplicationFiled: March 18, 2002Publication date: July 18, 2002Inventors: Georg G. A. Bohm, John D. Rensel, Russell W. Koch, John L. Turner, Robert J. Trew
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Patent number: 6388567Abstract: A monitoring device and patch combination used to monitor the conditions of a pneumatic tire having an innerliner includes a monitoring device and patch. The monitoring device includes a first connection element that is connected to the monitoring device. The patch includes an antenna that is connected to a second connection element. In one embodiment of the invention, the first connection element is in the form of a socket while the second connection element is in the form of a plug. The connection elements allow the monitoring device and patch to be separately fabricated and the direct physical connection between the antenna and the monitoring device to be formed when the combination is connected to the innerliner of the tire. In another embodiment, a plug extends from the bottom of an encapsulated monitoring device and is aligned with a socket on the patch. The connection between the plug and the socket occurs automatically when the encapsulated monitoring device is aligned with and connected to the patch.Type: GrantFiled: April 29, 1999Date of Patent: May 14, 2002Assignee: Bridgestone/Firestone North American Tire, LLCInventors: Georg G. A. Bohm, John D. Rensel, Russell W. Koch, John L. Turner, Robert J. Trew
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Patent number: 6384150Abstract: Novel solid supported anionic polymerization initiators that are multiply metalated with Group IA alkali metal atoms are provided and employed to produce extremely high molecular weight branched diene polymers. The initiators are prepared by metalating a particle comprising a thermoplastic polymer or a cured elastomer in the presence of a polar coordinator. The polymers obtained by anionic polymerization employing the initiators are multiply branched, with a polymer chain covalently attached to the particle at virtually every metalation site. The macro-branched polymers exhibit desirable properties, such as an extremely high molecular weight, a controlled molecular weight distribution, Tg and vinyl content, and the ability to readily absorb hydrocarbon solvents and oils. The polymers are easily compounded to form vulcanizable elastomeric compounds and articles that have excellent resistance to wear and tear and exhibit reduced hysteresis properties.Type: GrantFiled: May 10, 2001Date of Patent: May 7, 2002Assignee: Bridgestone CorporationInventors: William L. Hergenrother, William M. Cole, Theodore J. Knutson, Georg G. A. Böhm
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Patent number: 6359087Abstract: The invention provides solid supported anionic catalysts, suitable for gas phase anionic polymerization of conjugated diene monomers, that are useful for anionically producing very high molecular weight branched diene polymers, such as styrene butadiene rubber, polybutadiene rubber, polyisoprene rubber, and the like. The catalysts comprise a metalatable particle, such as a bound rubber, a thermoplastic polymer or a cured elastomer, that is multiply metalated with Group IA alkali metal atoms. The multi-branched diene polymers obtained by gas phase anionic polymerization employing the catalysts exhibit desirable properties, such as an extremely high molecular weight, a controlled molecular weight distribution, Tg and vinyl content, and the ability to readily absorb hydrocarbon solvents and oils. The polymers are easily compounded to form vulcanizable elastomeric compounds and articles, such as tires, that have excellent resistance to wear and tear and exhibit reduced hysteresis properties.Type: GrantFiled: November 23, 1999Date of Patent: March 19, 2002Assignee: Bridgestone CorporationInventors: William M. Cole, William L. Hergenrother, Theodore J. Knutson, Georg G. A. Böhm
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Patent number: 6312539Abstract: A tire tag protector is used to cover a tire tag on the inside of a pneumatic tire during a high-voltage, non-destructive test procedure. The tire tag protector includes a layer of dielectric and is configured to fit completely over the tire tag inside a pneumatic tire, the tire tag protector may also include a layer of conductive material. The tire tag protector is temporarily attached to the tire by an adhesive or by prongs that engage the tire tag. The tire tag protector prevents the high-voltage electrode used in the test procedure from snagging on the tire tag and prevents the sensitive electronic equipment of the tire tag from being damaged by the high-voltage test environment.Type: GrantFiled: March 19, 1999Date of Patent: November 6, 2001Assignee: Bridgestone/Firestone Research, Inc.Inventors: Georg G. A. Bohm, Russell W. Koch, Paul B. Wilson, Robert J. Trew
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Publication number: 20010029278Abstract: Novel solid supported anionic polymerization initiators that are multiply metalated with Group IA alkali metal atoms are provided and employed to produce extremely high molecular weight branched diene polymers. The initiators are prepared by metalating a particle comprising a thermoplastic polymer or a cured elastomer in the presence of a polar coordinator. The polymers obtained by anionic polymerization employing the initiators are multiply branched, with a polymer chain covalently attached to the particle at virtually every metalation site. The macro-branched polymers exhibit desirable properties, such as an extremely high molecular weight, a controlled molecular weight distribution, Tg and vinyl content, and the ability to readily absorb hydrocarbon solvents and oils. The polymers are easily compounded to form vulcanizable elastomeric compounds and articles that have excellent resistance to wear and tear and exhibit reduced hysteresis properties.Type: ApplicationFiled: May 10, 2001Publication date: October 11, 2001Inventors: William L. Hergenrother, William M. Cole, Theodore J. Knutson, Georg G.A. Bohm
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Patent number: 6271314Abstract: Novel solid supported anionic polymerization initiators that are multiply metalated with Group IA alkali metal atoms are provided and employed to produce extremely high molecular weight branched diene polymers. The initiators are prepared by metalating a particle comprising a thermoplastic polymer or a cured elastomer in the presence of a polar coordinator. The polymers obtained by anionic polymerization employing the initiators are multiply branched, with a polymer chain covalently attached to the particle at virtually every metalation site. The macro-branched polymers exhibit desirable properties, such as an extremely high molecular weight, a controlled molecular weight distribution, Tg and vinyl content, and the ability to readily absorb hydrocarbon solvents and oils. The polymers are easily compounded to form vulcanizable elastomeric compounds and articles that have excellent resistance to wear and tear and exhibit reduced hysteresis properties.Type: GrantFiled: May 11, 2000Date of Patent: August 7, 2001Assignee: Bridgestone CorporationInventors: William L. Hergenrother, William M. Cole, Theodore J. Knutson, Georg G. A. Böhm
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Patent number: 6258886Abstract: The invention provides solid supported anionic catalysts, suitable for gas phase anionic polymerization of conjugated diene monomers, that are useful for anionically producing very high molecular weight branched diene polymers, such as styrene butadiene rubber, polybutadiene rubber, polyisoprene rubber, and the like. The catalysts comprise a metalatable particle, such as a bound rubber, a thermoplastic polymer or a cured elastomer, that is multiply metalated with Group IA alkali metal atoms. The multi-branched diene polymers obtained by gas phase anionic polymerization employing the catalysts exhibit desirable properties, such as an extremely high molecular weight, a controlled molecular weight distribution, Tg and vinyl content, and the ability to readily absorb hydrocarbon solvents and oils. The polymers are easily compounded to form vulcanizable elastomeric compounds and articles, such as tires, that have excellent resistance to wear and tear and exhibit reduced hysteresis properties.Type: GrantFiled: November 23, 1999Date of Patent: July 10, 2001Assignee: Bridgestone CorporationInventors: William M. Cole, William L. Hergenrother, Theodore J. Knutson, Georg G. A. Böhm
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Patent number: 6255406Abstract: The invention provides solid supported anionic catalysts, suitable for gas phase anionic polymerization of conjugated diene monomers, that are useful for anionically producing very high molecular weight branched diene polymers, such as styrene butadiene rubber, polybutadiene rubber, polyisoprene rubber, and the like. The catalysts comprise a metalatable particle, such as a bound rubber, a thermoplastic polymer or a cured elastomer, that is multiply metalated with Group IA alkali metal atoms. The multi-branched diene polymers obtained by gas phase anionic polymerization employing the catalysts exhibit desirable properties, such as an extremely high molecular weight, a controlled molecular weight distribution, Tg and vinyl content, and the ability to readily absorb hydrocarbon solvents and oils. The polymers are easily compounded to form vulcanizable elastomeric compounds and articles, such as tires, that have excellent resistance to wear and tear and exhibit reduced hysteresis properties.Type: GrantFiled: November 23, 1999Date of Patent: July 3, 2001Assignee: Bridgestone CorporationInventors: William M. Cole, William L. Hergenrother, Theodore J. Knutson, Georg G. A. Böhm
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Patent number: 6194485Abstract: Rubber curing agents such as quinoids are compounded to achieve a uniform or homogeneous distribution thereof in a rubber composition. The quinoid curing agents are initially solubilized in an organic polar solvent and then mixed with the rubber or rubber masterbatch. The organic polar solvent is then removed. A uniform fine distribution of the curing agent results in improved physical properties. The process is an improvement in that it does not require the rubber masterbatch be dissolved in a nonpolar solvent. The present invention is particularly suitable as a sealant composition for tires.Type: GrantFiled: April 1, 1999Date of Patent: February 27, 2001Assignee: Bridgestone CorporationInventors: Terrence E. Hogan, Xiaorong Wang, William L. Hergenrother, Georg G. A. Bohm
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Patent number: 6136914Abstract: Novel solid supported anionic polymerization initiators that are multiply metalated with Group IA alkali metal atoms are provided and employed to produce extremely high molecular weight branched diene polymers. The initiators are prepared by metalating a particle comprising a thermoplastic polymer or a cured elastomer in the presence of a polar coordinator. The polymers obtained by anionic polymerization employing the initiators are multiply branched, with a polymer chain covalently attached to the particle at virtually every metalation site. The macro-branched polymers exhibit desirable properties, such as an extremely high molecular weight, a controlled molecular weight distribution, T.sub.g and vinyl content, and the ability to readily absorb hydrocarbon solvents and oils. The polymers are easily compounded to form vulcanizable elastomeric compounds and articles that have excellent resistance to wear and tear and exhibit reduced hysteresis properties.Type: GrantFiled: March 13, 1998Date of Patent: October 24, 2000Assignee: Bridgestone CorporationInventors: William L. Hergenrother, William M. Cole, Theodore J. Knutson, Georg G. A. Bohm
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Patent number: 6110319Abstract: An improved method for achieving enhanced bond strength between components of unvulcanized and at least partially vulcanized rubber the improvement comprising the steps of selecting first and second initially unvulcanized rubber components (10, 12) for the manufacture of a vulcanized rubber article (21); applying an interphase layer (11) of rubber material, essentially devoid of crosslinking agents and containing from about 0.Type: GrantFiled: April 24, 1997Date of Patent: August 29, 2000Assignee: Bridgestone CorporationInventors: Georg G. A. Bohm, James F. Cetnar
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Patent number: 6071847Abstract: The invention provides solid supported anionic catalysts, suitable for gas phase anionic polymerization of conjugated diene monomers, that are useful for anionically producing very high molecular weight branched diene polymers, such as styrene butadiene rubber, polybutadiene rubber, polyisoprene rubber, and the like. The catalysts comprise a metalatable particle, such as a bound rubber, a thermoplastic polymer or a cured elastomer, that is multiply metalated with Group IA alkali metal atoms. The multi-branched diene polymers obtained by gas phase anionic polymerization employing the catalysts exhibit desirable properties, such as an extremely high molecular weight, a controlled molecular weight distribution, T.sub.g and vinyl content, and the ability to readily absorb hydrocarbon solvents and oils. The polymers are easily compounded to form vulcanizable elastomeric compounds and articles, such as tires, that have excellent resistance to wear and tear and exhibit reduced hysteresis properties.Type: GrantFiled: March 13, 1998Date of Patent: June 6, 2000Assignee: Bridgestone CorporationInventors: William M. Cole, William L. Hergenrother, Theodore J. Knutson, Georg G. A. Bohm