Patents by Inventor Alan Roy Katritzky

Alan Roy Katritzky 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: 8673134
    Abstract: A method for the removal of nitrogen compounds from FCC feed or from catalytically cracked distillates including FCC cycle oils by using formaldehyde to selectively couple organic heterocyclic nitrogen species in the FCC feed or FCC distillate to form higher boiling coupling products out of the boiling range of FCC distillate. Removal of the nitrogenous compounds improves the operation of subsequent hydrodesulfurization steps needed for the distillate fraction to conform to low sulfur standards. The formaldehyde is preferably used in the form of paraformaldehyde. The reaction between the nitrogenous compounds in the cycle oil fraction with the formaldehyde is conveniently carried out in the cycle oil pumparound circuit of the FCC main column.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: March 18, 2014
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Stacey E. Siporin, David Thomas Ferrughelli, Steven S. Lowenthal, Randolph J. Smiley, Alan Roy Katritzky, Bruce R. Cook
  • Publication number: 20110132806
    Abstract: A method for the removal of nitrogen compounds from FCC feed or from catalytically cracked distillates including FCC cycle oils by using formaldehyde to selectively couple organic heterocyclic nitrogen species in the FCC feed or FCC distillate to form higher boiling coupling products out of the boiling range of FCC distillate. Removal of the nitrogenous compounds improves the operation of subsequent hydrodesulfurization steps needed for the distillate fraction to conform to low sulfur standards. The formaldehyde is preferably used in the form of paraformaldehyde. The reaction between the nitrogenous compounds in the cycle oil fraction with the formaldehyde is conveniently carried out in the cycle oil pumparound circuit of the FCC main column.
    Type: Application
    Filed: October 20, 2010
    Publication date: June 9, 2011
    Applicant: ExxonMobil Research and Engineering Company
    Inventors: Stacey E. Siporin, David Thomas Ferrughelli, Steven S. Lowenthal, Randolph J. Smiley, Alan Roy Katritzky, Bruce R. Cook
  • Patent number: 7718722
    Abstract: A composition comprising alkylthio- or aryl(heteroyl)thio-substituted p-phenylenediamine, its method of preparation, and its use as an antidegradant in natural or synthetic rubber.
    Type: Grant
    Filed: May 20, 2003
    Date of Patent: May 18, 2010
    Assignee: Flexsys America L.P.
    Inventors: Otto William Maender, Charles John Rostek, Alan Roy Katritzky, Herman Howard Odens, Michael Victor Voronkov
  • Patent number: 7538251
    Abstract: Severely sterically hindered secondary aminoether alcohols are prepared by a process comprising reacting a ketene with sulfuric acid to produce an anhydride which is then reacted with, to cleave the ring of, a dioxane to yield a cleavage product which is then aminated using an amine, followed by hydrolysis with a base to yield the desired severely sterically hindered secondary aminoether alcohol.
    Type: Grant
    Filed: February 1, 2005
    Date of Patent: May 26, 2009
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Michael Siskin, Alan Roy Katritzky, Kostyantyn Mykolayevich Kirichenko, Adeana Richelle Bishop, Christine Nicole Elia
  • Patent number: 7524990
    Abstract: Severely sterically hindered secondary aminoether alcohols are prepared by reacting organic carboxylic, organic carboxylic acid halides, acid anhydrides or a ketene with an alkyl, alkaryl or alkylhalo sulfonate to yield a sulfonic-carboxylic anhydride compound which is then reacted with a dioxane to cleave the ring of the dioxane, yielding a cleavage product which cleavage product is then aminated with an alkylamine and hydrolyzed with base to yield the severely sterically hindered secondary aminoether alcohol.
    Type: Grant
    Filed: February 1, 2005
    Date of Patent: April 28, 2009
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Michael Siskin, Alan Roy Katritzky, Kostyantyn Mykolayevich Kirichenko, Adeana Richelle Bishop, Christine Nicole Elia
  • Patent number: 7429680
    Abstract: Severely sterically hindered secondary aminoether alcohols are prepared by reacting an organic carboxylic acid or alkali metal salt of an organic carboxylic acid with a sulfonyl halide, a sulfuryl halide, a mixed sulfuryl ester halide or a mixed sulfuryl amide halide to yield a sulfonic-carboxylic anhydride compound which is then reacted with a dioxane to cleave the ring of the dioxane, yielding a cleavage product which cleavage product is then aminated with an alkylamine and hydrolyzed with base to yield the severely sterically hindered secondary aminoether alcohol.
    Type: Grant
    Filed: February 1, 2005
    Date of Patent: September 30, 2008
    Assignee: Exxonmobil Research and Engineering Company
    Inventors: Michael Siskin, Alan Roy Katritzky, Kostyantyn Mykolayevich Kirichenko
  • Patent number: 7351865
    Abstract: Severely sterically hindered secondary aminoether alcohols are prepared by reacting acid anhydrides or organic carboxylic acid halides with SO3 to yield a sulfonic carboxylic anhydride compound which is then reacted with a dioxane to cleave the ring of the dioxane yielding a cleavage product which is then aminated with an alkylamine and hydrolyzed with a base to yield the severely sterically hindered secondary aminoether alcohol.
    Type: Grant
    Filed: February 1, 2005
    Date of Patent: April 1, 2008
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Michael Siskin, Alan Roy Katritzky, Kostyantyn Mykolayevich Kirichenko, Adeana Richelle Bishop, Christine Nicole Elia
  • Patent number: 6849264
    Abstract: A composition and method for making a silicone composition is provided which comprises at least one polysiloxane or silicone resin, at least one linker, and at least one molecular hook wherein the molecular hook comprises a heterocyclic trimethylpyrimidinium compound.
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: February 1, 2005
    Assignee: General Electric Company
    Inventors: Matthew David Butts, Susan Adams Nye, Christopher Michael Byrne, Alan Roy Katritzky, Jon Walter Merkert
  • Patent number: 6849265
    Abstract: A composition and method for making a silicone composition is provided which comprises at least one polysiloxane or silicone resin, at least one linker, and at least one molecular hook wherein the molecular hook comprises a heterocyclic trimethylpyrimidinium compound.
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: February 1, 2005
    Assignee: General Electric Company
    Inventors: Matthew David Butts, Susan Adams Nye, Christopher Michael Byrne, Alan Roy Katritzky, Jon Walter Merkert
  • Patent number: 6844002
    Abstract: A composition and method for making a silicone composition is provided which comprises at least one polysiloxane or silicone resin, at least one linker, and at least one molecular hook wherein the molecular hook comprises a heterocyclic trimethylpyrimidinium compound.
    Type: Grant
    Filed: October 17, 2002
    Date of Patent: January 18, 2005
    Assignee: General Electric Company
    Inventors: Matthew David Butts, Susan Adams Nye, Christopher Michael Byrne, Alan Roy Katritzky, Jon Walter Merkert
  • Patent number: 6841164
    Abstract: A composition and method for making a silicone composition is provided which comprises at least one polysiloxane or silicone resin, at least one linker, and at least one molecular hook wherein the molecular hook comprises a heterocyclic trimethylpyrimidinium compound.
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: January 11, 2005
    Assignee: General Electric Company
    Inventors: Matthew David Butts, Susan Adams Nye, Christopher Michael Byrne, Alan Roy Katritzky, Jon Walter Merkert
  • Patent number: 6752984
    Abstract: A composition and method for making a silicone composition is provided which comprises at least one polysiloxane or silicone resin, at least one linker, and at least one molecular hook wherein the molecular hook comprises a heterocyclic trimethylpyrimidinium compound.
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: June 22, 2004
    Assignee: General Electric Company
    Inventors: Matthew David Butts, Susan Adams Nye, Christopher Michael Byrne, Alan Roy Katritzky, Jon Walter Merkert
  • Publication number: 20040006162
    Abstract: A composition comprising alkylthio- or aryl(heteroyl)thio-substituted p-phenylenediamine, its method of preparation, and its use as an antidegradant in natural or synthetic rubber.
    Type: Application
    Filed: May 20, 2003
    Publication date: January 8, 2004
    Inventors: Otto William Maender, Charles John Rostek, Alan Roy Katritzky, Herman Howard Odens, Michael Victor Voronkov
  • Publication number: 20030103928
    Abstract: A composition and method for making a silicone composition is provided which comprises at least one polysiloxane or silicone resin, at least one linker, and at least one molecular hook wherein the molecular hook comprises a heterocyclic trimethylpyrimidinium compound.
    Type: Application
    Filed: October 17, 2002
    Publication date: June 5, 2003
    Inventors: Matthew David Butts, Susan Adams Nye, Christopher Michael Byrne, Alan Roy Katritzky, Jon Walter Merkert
  • Publication number: 20030095939
    Abstract: A composition and method for making a silicone composition is provided which comprises at least one polysiloxane or silicone resin, at least one linker, and at least one molecular hook wherein the molecular hook comprises a heterocyclic trimethylpyrimidinium compound.
    Type: Application
    Filed: October 15, 2002
    Publication date: May 22, 2003
    Inventors: Matthew David Butts, Susan Adams Nye, Christopher Michael Byrne, Alan Roy Katritzky, Jon Walter Merkert
  • Publication number: 20030086889
    Abstract: A composition and method for making a silicone composition is provided which comprises at least one polysiloxane or silicone resin, at least one linker, and at least one molecular hook wherein the molecular hook comprises a heterocyclic trimethylpyrimidinium compound.
    Type: Application
    Filed: October 15, 2002
    Publication date: May 8, 2003
    Inventors: Matthew David Butts, Susan Adams Nye, Christopher Michael Byrne, Alan Roy Katritzky, Jon Walter Merkert
  • Publication number: 20030086891
    Abstract: A composition and method for making a silicone composition is provided which comprises at least one polysiloxane or silicone resin, at least one linker, and at least one molecular hook wherein the molecular hook comprises a heterocyclic trimethylpyrimidinium compound.
    Type: Application
    Filed: October 15, 2002
    Publication date: May 8, 2003
    Inventors: Matthew David Butts, Susan Adams Nye, Christopher Michael Byrne, Alan Roy Katritzky, Jon Walter Merkert
  • Publication number: 20030086890
    Abstract: A composition and method for making a silicone composition is provided which comprises at least one polysiloxane or silicone resin, at least one linker, and at least one molecular hook wherein the molecular hook comprises a heterocyclic trimethylpyrimidinium compound.
    Type: Application
    Filed: October 15, 2002
    Publication date: May 8, 2003
    Inventors: Matthew David Butts, Susan Adams Nye, Christopher Michael Byrne, Alan Roy Katritzky, Jon Walter Merkert
  • Patent number: 6544499
    Abstract: This invention relates to a topical composition for treating amino acid based substrates comprising a protected thiol compound having the formula R—(S—Pr)m where R is a functional group, S is sulfur, and Pr is a heterocyclic protecting group, and m is an integer between 1 and 100. The invention further relates to systems which comprise this protected thiol compound and an activating mechanism. The protected thiol compounds of the present invention may be used in hair care compositions, textile care compositions, cosmetic compositions, oral care compositions, skin care, nail care, laundry care, acne care and animal care compositions. A preferred embodiment of the present invention provides a silicone composition and method for making. The composition comprises a polysiloxane or silicone resin, at least one linker, and at least one molecular hook.
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: April 8, 2003
    Assignee: The Procter & Gamble Company
    Inventors: Robert Wayne Glenn, Jr., Alan Roy Katritzky, Eric Block, Matthew David Shair, Matthew David Butts
  • Patent number: 6495125
    Abstract: This invention relates to a topical composition for treating amino acid based substrates comprising a protected thiol compound having the formula R—(S—Pr)m where R is a functional group, S is sulfur, and Pr is a heterocyclic protecting group, and m is an integer between 1 and 100. The invention further relates to systems which comprise this protected thiol compound and an activating mechanism. The protected thiol compounds of the present invention may be used in hair care compositions, textile care compositions, cosmetic compositions, oral care compositions, skin care, nail care, laundry care, acne care and animal care compositions. Preferred embodiments of the present invention provide a modified UV absorber and a modified antioxidant, methods for making them and compositions conprising them.
    Type: Grant
    Filed: January 5, 2001
    Date of Patent: December 17, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Robert Wayne Glenn, Jr., Alan Roy Katritzky, Eric Block, Matthew David Shair, Thomas Ehlis, Joseph Anthony Lupia