Patents by Inventor Stephan Rodewald
Stephan Rodewald 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).
-
Publication number: 20140187839Abstract: Methods and apparatus for the purification of isoprene, such as the purification of a bioisoprene composition from fermentor off-gas. The apparatus includes two columns that process the fermentor off-gas, which includes isoprene and various impurities. A solvent is added to the off-gas in the first column, and the isoprene is stripped from the solvent in the second column. Also provided is a downstream further purification process. Also provided are the resulting purified isoprene compositions.Type: ApplicationFiled: September 24, 2013Publication date: July 3, 2014Applicants: The Goodyear Tire & Rubber Company, Danisco US Inc.Inventors: Frank J. FEHER, John Kaluen KAN, Joseph C. MCAULIFFE, Thomas F. MCCALL, Lawrence J. PICKERT, Christopher D. PLOETZ, Stephan RODEWALD, Timothy A. SABO, Tang H. WONG
-
Publication number: 20140135437Abstract: This invention relates to a tire with a circumferential rubber tread composition comprised of a silica reinforced rubber composition containing diene based polymers in combination with traction resin(s) and vegetable oil, particularly soybean oil.Type: ApplicationFiled: November 15, 2012Publication date: May 15, 2014Applicant: The Goodyear Tire & Rubber CompanyInventors: Paul Harry Sandstrom, Stephan Rodewald, Ahalya Ramanathan
-
Publication number: 20140135424Abstract: This invention relates to a rubber composition and tire with component comprises of such rubber composition comprised of a combination of cis 1,4-polyisoprene rubber, desirably natural rubber, and low level of soybean oil.Type: ApplicationFiled: November 15, 2012Publication date: May 15, 2014Inventors: Paul Harry Sandstrom, Stephan Rodewald, Ahalya Ramanathan
-
Publication number: 20140080983Abstract: This invention relates to compositions and methods for producing polymers of isoprene derived from renewable resources, such as isoprene produced from cultured cells that use renewable carbon sources. A starting isoprene composition, such as a bioisoprene composition, is distinguished from petroleum based isoprene by its purity profile (such as lower levels of certain C5 hydrocarbons other than isoprene, presence of certain compounds associated with the biological process for production) and the relative content of the carbon isotopes. Polymers obtained by polymerization of such starting isoprene composition according to this invention, such as a polyisoprene homopolymer or a copolymer having repeat units that are derived from isoprene, are distinguishable from isoprene containing polymers from petrochemical resources.Type: ApplicationFiled: August 20, 2013Publication date: March 20, 2014Applicants: DANISCO US INC., THE GOODYEAR TIRE & RUBBER COMPANYInventors: Joseph C. McAuliffe, Sergey Paramonov, Stephan Rodewald, Karl J. Sanford
-
Patent number: 8598286Abstract: The present invention is directed to a polymer comprising repeat units derived from 1,3-butadiene and a substituted butadiene of formula I or II wherein R is hydrogen, an alkyl group, aryl group, or a fused cyclic group; and wherein at least 95 percent by weight of the repeat units have a cis-1, 4 microstructure. The invention is further directed to a rubber composition and pneumatic tire comprising the polymer, and a method for making the polymer using a neodymium catalyst system.Type: GrantFiled: November 5, 2012Date of Patent: December 3, 2013Assignee: The Goodyear Tire & Rubber CompanyInventors: Margaret McGuigan Flook, Stephan Rodewald
-
Publication number: 20130289183Abstract: This invention relates to vegetable oil extended rubber containing soy oil and tire with a component of such oil extended rubber.Type: ApplicationFiled: April 26, 2012Publication date: October 31, 2013Inventors: Michael Lester Kerns, Stephan Rodewald, Ahalya Ramanathan, Paul Harry Sandstrom
-
Patent number: 8569562Abstract: Methods and apparatus for the purification of isoprene, such as the purification of a bioisoprene composition from fermentor off-gas. The apparatus includes two columns that process the fermentor off-gas, which includes isoprene and various impurities. A solvent is added to the off-gas in the first column, and the isoprene is stripped from the solvent in the second column. Also provided is a downstream further purification process. Also provided are the resulting purified isoprene compositions.Type: GrantFiled: December 15, 2010Date of Patent: October 29, 2013Assignees: Danisco US Inc., The Goodyear Tire & Rubber CompanyInventors: Frank J. Feher, John Kaluen Kan, Joseph C. McAuliffe, Thomas F. McCall, Stephan Rodewald, Timothy Alan Sabo, Tang Hong Wong, Christopher D. Ploetz, Lawrence J. Pickert
-
Patent number: 8546506Abstract: The invention features compositions and methods for producing polymers of isoprene derived from renewable resources such as isoprene produced from cultured cells that use renewable carbon sources. A starting isoprene composition, such as a bioisoprene composition, is distinguished from petroleum based isoprene by the purity profile (such as lower levels of certain C5 hydrocarbons other than isoprene, presence of certain compounds associated with the biological process for production) and the relative content of the carbon isotopes. Polymers obtained by polymerization of such starting isoprene composition according to this invention, such as a polyisoprene homopolymer or a copolymer having repeat units that are derived from isoprene, are distinguishable from isoprene containing polymers from petrochemical resources.Type: GrantFiled: June 16, 2010Date of Patent: October 1, 2013Assignees: The Goodyear Tire & Rubber Company, Danisco US Inc.Inventors: Joseph C. McAuliffe, Sergey Paramonov, Stephan Rodewald, Karl J. Sanford
-
Publication number: 20130165578Abstract: Pneumatic rubber tire with a component comprised of a silica reinforced rubber composition comprised of a combination of functionalized polybutadiene rubber and functionalized styrene/butadiene elastomer.Type: ApplicationFiled: October 31, 2012Publication date: June 27, 2013Inventors: William Paul Francik, Christin Louise Alwardt, Michael Joseph Rachita, Stephan Rodewald
-
Patent number: 8299290Abstract: The present invention relates to functionalizing agents that are particularly useful for functionalizing living rubbery polymers to make the polymer more compatible with fillers, such as carbon black and silica. These functionalizing agents are comprised of a boron containing compound having a structural formula selected from the group consisting of: wherein R is selected from the group consisting of hydrogen atoms, alkyl groups and aryl groups, wherein R1, R2, and R3 can be the same or different and are selected from the group consisting of alkyl groups, and aryl groups, and wherein R4 represents an alkylene group or a bridging aromatic group.Type: GrantFiled: October 4, 2011Date of Patent: October 30, 2012Assignee: The Goodyear Tire & Rubber CompanyInventors: Robert Alan Woloszynek, Stephan Rodewald
-
Publication number: 20120048446Abstract: The present invention achieves increased filler interaction by incorporating a small amount (a few units per chain of rubbery polymer) of a conjugated triene monomer, such as alloocimene, randomly throughout the polymer chain of a rubbery polymer or at the chain ends of the rubbery polymer. The incorporation of the conjugated triene monomer leads to the formation of a polymer containing highly reactive conjugated diene units. These conjugated diene units can chemically react with carbon black leading to superior reinforcement. Alternatively, these conjugated diene units can be used for functionalization of the polymer with silica interactive/reactive groups using Diels Alder reactions. This functionalization of the rubbery polymer can conveniently be conducted in a mixer, such as a Banbury mixer, a mill mixer, or the like.Type: ApplicationFiled: April 5, 2011Publication date: March 1, 2012Applicant: THE GOODYEAR TIRE & RUBBER COMPANYInventors: Gabor Kaszas, Stephan Rodewald, Joseph John Kulig
-
Publication number: 20120029234Abstract: The present invention relates to functionalizing agents that are particularly useful for functionalizing living rubbery polymers to make the polymer more compatible with fillers, such as carbon black and silica. These functionalizing agents are comprised of a boron containing compound having a structural formula selected from the group consisting of: wherein R is selected from the group consisting of hydrogen atoms, alkyl groups and aryl groups, wherein R1, R2, and R3 can be the same or different and are selected from the group consisting of alkyl groups, and aryl groups, and wherein R4 represents an alkylene group or a bridging aromatic group.Type: ApplicationFiled: October 4, 2011Publication date: February 2, 2012Applicant: THE GOODYEAR TIRE & RUBBER COMPANYInventors: Robert Alan Woloszynek, Stephan Rodewald
-
Patent number: 8063152Abstract: The present invention relates to functionalizing agents that are particularly useful for functionalizing living rubbery polymers to make the polymer more compatible with fillers, such as carbon black and silica. These functionalizing agents are comprised of a boron containing compound having a structural formula selected from the group consisting of: wherein R is selected from the group consisting of hydrogen atoms, alkyl groups and aryl groups, wherein R1, R2, and R3 can be the same or different and are selected from the group consisting of alkyl groups, and aryl groups, and wherein R4 represents an alkylene group or a bridging aromatic group.Type: GrantFiled: February 25, 2009Date of Patent: November 22, 2011Assignee: The Goodyear Tire & Rubber CompanyInventors: Robert Alan Woloszynek, Stephan Rodewald
-
Publication number: 20110178261Abstract: Methods and apparatus for the purification of isoprene, such as the purification of a bioisoprene composition from fermentor off-gas. The apparatus includes two columns that process the fermentor off-gas, which includes isoprene and various impurities. A solvent is added to the off-gas in the first column, and the isoprene is stripped from the solvent in the second column. Also provided is a downstream further purification process. Also provided are the resulting purified isoprene compositions.Type: ApplicationFiled: December 15, 2010Publication date: July 21, 2011Inventors: Frank J. FEHER, John Kaluen Kan, Joseph C. McAuliffe, Thomas F. McCall, Stephan Rodewald, Timothy Alan Sabo, Tang Hong Wong, Christopher D. Ploetz, Lawrence J. Pickert
-
Publication number: 20110121108Abstract: A nozzle provides plasma polymerization on a cylindrical surface of an object. The nozzle includes a cylindrical body having a longitudinal axis, a coaxial cylindrical inlet for receiving plasma and the object, a radial inlet for receiving an organic precursor, and a mixing chamber for receiving the plasma and the object from the coaxial cylindrical inlet thereby providing mixing of the plasma and the organic precursor and a uniform deposition of polymer on the cylindrical surface of the object.Type: ApplicationFiled: November 24, 2009Publication date: May 26, 2011Inventors: Stephan Rodewald, Frederic Gerard Auguste Siffer
-
Publication number: 20110040058Abstract: The invention features compositions and methods for producing polymers of isoprene derived from renewable resources such as isoprene produced from cultured cells that use renewable carbon sources. A starting isoprene composition, such as a bioisoprene composition, is distinguished from petroleum based isoprene by the purity profile (such as lower levels of certain C5 hydrocarbons other than isoprene, presence of certain compounds associated with the biological process for production) and the relative content of the carbon isotopes. Polymers obtained by polymerization of such starting isoprene composition according to this invention, such as a polyisoprene homopolymer or a copolymer having repeat units that are derived from isoprene, are distinguishable from isoprene containing polymers from petrochemical resources.Type: ApplicationFiled: June 16, 2010Publication date: February 17, 2011Inventors: Joseph C. MCAULIFFE, Sergey Paramonov, Stephan Rodewald, Karl J. Sanford
-
Patent number: 7703485Abstract: According to an aspect of the invention, an apparatus for self-sealing of a reaction vessel, such that the reaction vessel may be repeatedly accessed by a fluid transfer mechanism and subsequently self-sealed, is detailed. The reaction vessel has an access opening, and the apparatus comprises a cap, a ball which is comprised of a magnetizable material (such as a ferrous metal), and a ring magnet. The cap is sized to fit over the reaction vessel access opening, and has an access port. The cap has an internal surface which faces the reaction vessel, and an external surface, which faces away from the reaction vessel. The ball is sized to fit over the cap access port, such that a portion of the ball seats partially in the cap access port on the cap internal surface, thus sealing the cap access port. According to an aspect of the invention, the ball may be comprised of a ferromagnetic material, or a magnetizable material that is preferably magnetized.Type: GrantFiled: May 9, 2008Date of Patent: April 27, 2010Assignee: The Goodyear Tire & Rubber CompanyInventor: Stephan Rodewald
-
Publication number: 20090229729Abstract: The present invention relates to functionalizing agents that are particularly useful for functionalizing living rubbery polymers to make the polymer more compatible with fillers, such as carbon black and silica. These functionalizing agents are comprised of a boron containing compound having a structural formula selected from the group consisting of: wherein R is selected from the group consisting of hydrogen atoms, alkyl groups and aryl groups, wherein R1, R2, and R3 can be the same or different and are selected from the group consisting of alkyl groups, and aryl groups, and wherein R4 represents an alkylene group or a bridging aromatic group.Type: ApplicationFiled: February 25, 2009Publication date: September 17, 2009Applicant: THE GOODYEAR TIRE & RUBBER COMPANYInventors: Robert Alan Woloszynek, Stephan Rodewald
-
Patent number: 7546855Abstract: According to an aspect of the invention, an apparatus for self-sealing of a reaction vessel, such that the reaction vessel may be repeatedly accessed by a fluid transfer mechanism and subsequently self-sealed, is detailed. The reaction vessel has an access opening, and the apparatus comprises a cap, a ball which is comprised of a magnetizable material (such as a ferrous metal), and a ring magnet. The cap is sized to fit over the reaction vessel access opening, and has an access port. The cap has an internal surface which faces the reaction vessel, and an external surface, which faces away from the reaction vessel. The ball is sized to fit over the cap access port, such that a portion of the ball seats partially in the cap access port on the cap internal surface, thus sealing the cap access port. According to an aspect of the invention, the ball may be comprised of a ferromagnetic material, or a magnetizable material that is preferably magnetized.Type: GrantFiled: November 27, 2006Date of Patent: June 16, 2009Assignee: The Goodyear Tire & Rubber CompanyInventor: Stephan Rodewald
-
Publication number: 20080210689Abstract: According to an aspect of the invention, an apparatus for self-sealing of a reaction vessel, such that the reaction vessel may be repeatedly accessed by a fluid transfer mechanism and subsequently self-sealed, is detailed. The reaction vessel has an access opening, and the apparatus comprises a cap, a ball which is comprised of a magnetizable material (such as a ferrous metal), and a ring magnet. The cap is sized to fit over the reaction vessel access opening, and has an access port. The cap has an internal surface which faces the reaction vessel, and an external surface, which faces away from the reaction vessel. The ball is sized to fit over the cap access port, such that a portion of the ball seats partially in the cap access port on the cap internal surface, thus sealing the cap access port. According to an aspect of the invention, the ball may be comprised of a ferromagnetic material, or a magnetizable material that is preferably magnetized.Type: ApplicationFiled: May 9, 2008Publication date: September 4, 2008Applicant: The Goodyear Tire & Rubber CompanyInventor: Stephan Rodewald