Patents by Inventor Joseph F. Stieber

Joseph F. Stieber 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).

  • Patent number: 10186716
    Abstract: A non-aqueous flow cell energy storage device comprises a ionically conductive separator, which separator comprises a polyurethane prepared by curing an isocyanate capped prepolymer, which prepolymer was prepared from a polyol having polycarbonate backbone, wherein the separator may be impregnated with electrolyte salts and/or swelled by an organic solvent.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: January 22, 2019
    Assignee: LANXESS SOLUTIONS US INC.
    Inventors: Venkatramanan K Madabusi, Joseph F Stieber, Kevin Jackson, George Brereton, Fei Wang, Dharmasena Peramunage
  • Publication number: 20160181626
    Abstract: A non-aqueous flow cell energy storage device comprises a ionically conductive separator, which separator comprises a polyurethane prepared by curing an isocyanate capped prepolymer, which prepolymer was prepared from a polyol having polycarbonate backbone, wherein the separator may be impregnated with electrolyte salts and/or swelled by an organic solvent.
    Type: Application
    Filed: March 3, 2016
    Publication date: June 23, 2016
    Inventors: Venkatramanan K. Madabusi, Joseph F. Stieber, Kevin Jackson, George Brereton, Fei Wang, Dharmasena Peramunage
  • Patent number: 8563489
    Abstract: An alkylated 1,3-benzenediamine compound used as a deposit-control lubricant additives for organic materials including lubricating oil, gasoline, and diesel fuels. The invention improves the oxidative stability of the lubricants and fuels by adding the alkylated 1,3-benzenediamine compound. The alkylated 1,3-benzenediamine compound is formed using a catalytic hydrogenation that alkylates the 4 and/or 6 position of the central aromatic ring.
    Type: Grant
    Filed: September 17, 2008
    Date of Patent: October 22, 2013
    Assignee: Chemtura Corporation
    Inventors: Robert G. Rowland, Joseph F. Stieber, Clifford M. Pratt, Ronald D. Abbott
  • Publication number: 20120248378
    Abstract: Compositions comprising substituted phenylenediamine and substituted triazine compounds, including tris-(N-alkyl-p-phenylenediamino)-1,3,5-triazines. The compositions are liquid and do not sinter during storage or transportation. The compositions are used as antiozonants for elastomer articles, including rubber articles.
    Type: Application
    Filed: June 13, 2012
    Publication date: October 4, 2012
    Inventors: Joseph F. Stieber, Venratramanan K. Madabusi, Edward L. Wheeler
  • Patent number: 8062551
    Abstract: An antiozonant mixture is disclosed wherein said mixture comprises at least two compounds, (A) at least one of which is of the structure and (B) at least one other of which is of the structure wherein R1 is a straight chain, branched, or cyclic alkyl group comprising from three to seven carbon atoms, and R2 is a straight chain, branched, or cyclic alkyl group comprising at least eleven carbon atoms.
    Type: Grant
    Filed: May 2, 2006
    Date of Patent: November 22, 2011
    Assignee: Chemtura Corporation
    Inventors: Martin J. Hannon, Russell E. Malz, Jr., Joseph F. Stieber
  • Patent number: 7902280
    Abstract: Disclosed herein are highly stable styrenated phenolic compositions that are liquids at room temperature, and polymer articles and lubricant compositions containing such styrenated phenolic compositions. Also disclosed are processes for forming such styrenated phenolic compositions, which processes afford distyrenated phenolics assaying at 70% minimum by total GC area, comprising reacting styrene with one or more phenolics, e.g., at least one of phenol, p-cresol and/or o-cresol, in the presence of an acid catalyst, preferably a sulfonic acid catalyst, at elevated temperature, wherein the resulting product mixture comprises one or more monostyrenated phenolics, one or more distyrenated phenolics, and one or more tristyrenated phenolics.
    Type: Grant
    Filed: July 7, 2008
    Date of Patent: March 8, 2011
    Assignee: Chemtura Corporation
    Inventors: Michael E. Gelbin, Jonathan S. Hill, Maurice Power, Jun Dong, Cyril A. Migdal, Gerard Mulqueen, Joseph F. Stieber
  • Patent number: 7563929
    Abstract: A process for alkylation of a N?-phenyl-N-alkyl-p-phenylenediamine of specified formula in an ionic liquid unexpectedly produces a N?-phenyl-N-alkyl(alkylphenylene)diamine of a second specified formula. The use of an inorganic liquid permits convenient separation of the alkylated reaction product from the reaction mixture.
    Type: Grant
    Filed: April 16, 2008
    Date of Patent: July 21, 2009
    Assignee: Chemtura Corporation
    Inventors: Steven J. Hobbs, Joseph F. Stieber
  • Publication number: 20090156449
    Abstract: An alkylated 1,3-benzenediamine compound used as a deposit-control lubricant additives for organic materials including lubricating oil, gasoline, and diesel fuels. The invention improves the oxidative stability of the lubricants and fuels by adding the alkylated 1,3-benzenediamine compound. The alkylated 1,3-benzenediamine compound is formed using a catalytic hydrogenation that alkylates the 4 and/or 6 position of the central aromatic ring.
    Type: Application
    Filed: September 17, 2008
    Publication date: June 18, 2009
    Inventors: Robert G. Rowland, Joseph F. Stieber, Clifford M. Pratt, Ronald D. Abbott
  • Publication number: 20090005478
    Abstract: Disclosed herein are highly stable styrenated phenolic compositions that are liquids at room temperature, and polymer articles and lubricant compositions containing such styrenated phenolic compositions. Also disclosed are processes for forming such styrenated phenolic compositions, which processes afford distyrenated phenolics assaying at 70% minimum by total GC area, comprising reacting styrene with one or more phenolics, e.g., at least one of phenol, p-cresol and/or o-cresol, in the presence of an acid catalyst, preferably a sulfonic acid catalyst, at elevated temperature, wherein the resulting product mixture comprises one or more monostyrenated phenolics, one or more distyrenated phenolics, and one or more tristyrenated phenolics.
    Type: Application
    Filed: July 7, 2008
    Publication date: January 1, 2009
    Inventors: Michael E. Gelbin, Jonathan S. Hill, Maurice Power, Jun Dong, Cyril A. Migdal, Gerard Mulqueen, Joseph F. Stieber
  • Publication number: 20080234517
    Abstract: A process for alkylation of a N?-phenyl-N-alkyl-p-phenylenediamine of specified formula in an ionic liquid unexpectedly produces a N?-phenyl-N-alkyl(alkylphenylene)diamine of a second specified formula. The use of an inorganic liquid permits convenient separation of the alkylated reaction product from the reaction mixture.
    Type: Application
    Filed: April 16, 2008
    Publication date: September 25, 2008
    Applicant: Chemtura Corporation
    Inventors: Steven J. HOBBS, Joseph F. STIEBER
  • Patent number: 7390928
    Abstract: A process for alkylation of a N?-phenyl-N-alkyl-p-phenylenediamine of specified formula in an ionic liquid unexpectedly produces a N?-phenyl-N-alkyl(alkylphenylene)diamine of a second specified formula. The use of an inorganic liquid permits convenient separation of the alkylated reaction product from the reaction mixture.
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: June 24, 2008
    Assignee: Chemtura Corporation
    Inventors: Steven J. Hobbs, Joseph F. Stieber
  • Patent number: 7361788
    Abstract: A single-step process is disclosed for the ring alkylation of at least one N-alkyl-N?-phenyl-phenylenediamine with at least one olefin wherein the process comprises heating a mixture of the N-alkyl-N?-phenyl-phenylenediamine(s) and olefin(s) in the presence of a catalytic amount of at least one alkyl aluminum halide at a temperature of from about 50 to about 350° C. in a sealed vessel for from about one to about 30 hours.
    Type: Grant
    Filed: January 24, 2006
    Date of Patent: April 22, 2008
    Assignee: Chemtura Corporation
    Inventors: Jin-Yun Wang, Huiling Ding, Joseph F. Stieber
  • Patent number: 7205348
    Abstract: Process of producing unvulcanized rubber useful for producing vulcanized rubber with improved hysteresis, which comprises mixing a composition comprising unvulcanized rubber, carbon black and xanthogen polysulfide at an elevated temperature in a non-productive stage and composition suitable for producing unvulcanized rubber useful for producing vulcanized rubber with improved hysteresis, which comprises unvulcanized rubber, a filler comprising carbon black and xanthogen polysulfide.
    Type: Grant
    Filed: April 7, 2004
    Date of Patent: April 17, 2007
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Joseph F. Stieber, Martin J. Hannon, L. P. Felipe Chibante, James R. Korte, Frank E. Welsh
  • Patent number: 7053137
    Abstract: A process for producing cured rubber is disclosed wherein the process comprises: A) mixing rubber, carbon black, and azodicarbonamide without other curative ingredients; B) adding the remaining curative ingredients in one or more subsequent mixing steps; and then C) curing the rubber; whereby a cured rubber having improved hysteresis is obtained. The cured rubber thus obtained is particularly useful in tires and tire treads.
    Type: Grant
    Filed: February 4, 2003
    Date of Patent: May 30, 2006
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Joseph F. Stieber, Martin J. Hannon
  • Patent number: 6906121
    Abstract: A composition of matter is disclosed that comprises a compound of the formula AnR, wherein: A is R1 is hydrocarbyl; m is 0 or 1; n is 1, 2, or 3; R is selected from the group consisting of: mono-, di-, and trivalent aliphatic groups; mono-, di-, and trivalent aromatic groups; five- and six-membered heterocyclic rings comprising n carbon atoms bonded to A, at least one nitrogen atom, and, optionally, at least one sulfur atom; and wherein R2 and R3 are independently selected from the group consisting of hydrogen and hydrocarbyl. These compounds are useful as coupling agents in filled elastomer compositions.
    Type: Grant
    Filed: March 24, 2003
    Date of Patent: June 14, 2005
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Joseph F. Stieber, Franklin H. Barrows
  • Publication number: 20040192826
    Abstract: A composition of matter is disclosed that comprises a compound of the formula AnR, wherein:
    Type: Application
    Filed: March 24, 2003
    Publication date: September 30, 2004
    Applicant: UNIROYAL CHEMICAL COMPANY, INC.
    Inventors: Joseph F. Stieber, Franklin H. Barrows
  • Publication number: 20040192852
    Abstract: Process of producing unvulcanized rubber useful for producing vulcanized rubber with improved hysteresis, which comprises mixing a composition comprising unvulcanized rubber, carbon black and xanthogen polysulfide at an elevated temperature in a non-productive stage and composition suitable for producing unvulcanized rubber useful for producing vulcanized rubber with improved hysteresis, which comprises unvulcanized rubber, a filler comprising carbon black and xanthogen polysulfide.
    Type: Application
    Filed: April 7, 2004
    Publication date: September 30, 2004
    Inventors: Joseph F. Stieber, Martin J. Hannon, L. P. Felipe Chibante, James R. Korte, Frank E. Welsh
  • Publication number: 20040152809
    Abstract: A process for producing cured rubber is disclosed wherein the process comprises:
    Type: Application
    Filed: February 4, 2003
    Publication date: August 5, 2004
    Applicant: UNIROYAL CHEMICAL COMPANY, INC.
    Inventors: Joseph F. Stieber, Martin J. Hannon
  • Patent number: 6573339
    Abstract: A process is disclosed for preparing an N-hydrocarbyl-bis-benzothiazolesulfenamide comprising reacting an N-hydrocarbyl-2-benzothiazolesulfenamide with a cyclic organic acid anhydride in situ in a polymeric matrix at elevated temperature.
    Type: Grant
    Filed: January 12, 1999
    Date of Patent: June 3, 2003
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Joseph F. Stieber, Robert J. Cornell, John M. Wefer, David Hajdasz, Jeffrey Otis
  • Patent number: 6245912
    Abstract: There is disclosed a process for the preparation of sulfenimides comprising: mixing, in a hydrocarbon solvent, a sulfenamide of the formula with an aldehyde of the formula R4CHO where X is a sulfur atom, a —C═N— group, or a —C═C— group, R1 and R2 are independently selected from the group consisting of hydrogen, alkyl, and aryl or may be joined to form a saturated or unsaturated ring or aromatic ring, R3 is alkyl or cycloalkyl, and R4 is a hydrocarbon radical wherein the carbon bearing the aldehyde function is bonded only to other carbon atoms, a substituted or unsubstituted aryl ring, or a heteroaromatic ring; and heating the mixture at a temperature and for a period of time sufficient to convert the sulfenamide to the sulfenimide.
    Type: Grant
    Filed: October 12, 2000
    Date of Patent: June 12, 2001
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Joseph F. Stieber, Franklin H. Barrows