Patents by Inventor John Reale, Jr.

John Reale, Jr. 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).

  • Supported gas separation membrane, process for its manufacture and use of the membrane in the separation of gases
    Patent number: 5928410
    Abstract: A supported gas separation membrane for separating a particular component from a mixture of gases, a process for its manufacture and the use of the membrane in the separation of gases are provided in which the supported gas separation membrane comprises (a) a porous polymeric support layer and (b) an asymmetric gas separation membrane layer formed from a polyimide having repeating units of the general formula: ##STR1## wherein R is: ##STR2## and x is an integer.
    Type: Grant
    Filed: December 9, 1997
    Date of Patent: July 27, 1999
    Assignee: Texaco Inc.
    Inventors: Yajnanarayana H. R. Jois, John Reale, Jr.
  • Dewatering of concentrated aqueous solutions by pervaporation
    Patent number: 5182022
    Abstract: Charge aqueous solution containing 85 w % ethylene glycol is concentrated by pervaporation across a sulfonated polyethylene membrane to yield retentate containing 95 w % ethylene glycol.
    Type: Grant
    Filed: June 19, 1991
    Date of Patent: January 26, 1993
    Assignee: Texaco Inc.
    Inventors: Mordechai Pasternak, John Reale, Jr.
  • Process for dehydration of organic oxygenates
    Patent number: 5085778
    Abstract: A polyethylene imine membrane which has been cross-linked by heat treating at 100.degree. C.-200.degree. C. for 3-20 minutes may be used to dewater isopropanol or methyl ethyl ketone/toluene mixtures.
    Type: Grant
    Filed: January 22, 1991
    Date of Patent: February 4, 1992
    Assignee: Texaco Inc.
    Inventor: John Reale, Jr.
  • Process for dehydration of organic oxygenates
    Patent number: 5032278
    Abstract: A polyethylenimine membrane which has been cross-linked by heat treating at 100.degree. C.-200.degree. C. for 3-20 minutes may be used to dewater isopropanol or methyl ethyl ketone/toluene mixtures.
    Type: Grant
    Filed: August 6, 1990
    Date of Patent: July 16, 1991
    Assignee: Texaco Inc.
    Inventor: John Reale, Jr.
  • Separation of water-soluble organic electrolytes
    Patent number: 5028336
    Abstract: Water-soluble organic electrolytes, such as anions of lower carboxylic acids in aqueous solution at low pH, are removed by raising the pH and subjecting the resultant charge liquid to nanofiltration.
    Type: Grant
    Filed: March 3, 1989
    Date of Patent: July 2, 1991
    Assignee: Texaco Inc.
    Inventors: Craig R. Bartels, John Reale, Jr.
  • Process for pervaporization using membrane separating means
    Patent number: 5004861
    Abstract: Water is separated from an MEK toluene dewaxing solvent by pervaporation through a polyvinyl alcohol membrane (optionally containing polyacrylic acid) mounted on a polyacrylonitrile support layer.
    Type: Grant
    Filed: July 5, 1988
    Date of Patent: April 2, 1991
    Assignee: Texaco Inc.
    Inventors: Mordechai Pasternak, Craig R. Bartels, John Reale, Jr.
  • Separation of furfural/middle distillate streams
    Patent number: 4982051
    Abstract: A furfural-containing middle distillate stream is separated by use of a polyethyleneimine membrane which has been cross-linked with a polyisocyanate or a poly(carbonyl chloride) cross-linking agent.
    Type: Grant
    Filed: January 18, 1990
    Date of Patent: January 1, 1991
    Assignee: Texaco Inc.
    Inventors: Mordechai Pasternak, John Reale, Jr.
  • Dehydration of organic oxygenates
    Patent number: 4961855
    Abstract: Concentration of aqueous solutions of isopropanol may be effected by a composite membrane including a glutaraldehyde cross-linked polyvinyl alcohol bonded to a porous layer of polysulfone on a polyester backing.
    Type: Grant
    Filed: December 5, 1988
    Date of Patent: October 9, 1990
    Assignee: Texaco Inc.
    Inventors: John Reale, Jr., Craig R. Bartels
  • Membrane process for separation of organic liquids
    Patent number: 4960519
    Abstract: A mixture of alcohol, such as methanol, and organic oxygenate, such as dimethyl carbonate, is treated to recover product of decreased methanol content by pervaporation across a composite membrane of a polyvinyl alcohol and a polyacrylic acid on a polyacrylonitrile support layer.
    Type: Grant
    Filed: October 16, 1989
    Date of Patent: October 2, 1990
    Assignee: Texaco Inc.
    Inventors: Mordechai Pasternak, Craig R. Bartels, John Reale, Jr., Vatsal M. Shah
  • Dehydration of glycols
    Patent number: 4941976
    Abstract: Concentration of aqueous solutions of ethylene glycol may be effected by a composite membrane including a glutaraldehyde-crosslinked polyvinyl alcohol bonded to a porous layer of polysulfone on a polyester backing.
    Type: Grant
    Filed: August 23, 1988
    Date of Patent: July 17, 1990
    Assignee: Texaco Inc.
    Inventors: Craig R. Bartels, John Reale, Jr.
  • Concentration of water-ketone compositions
    Patent number: 4935144
    Abstract: Water is separated from methyl isobutyl ketone by pervaporation across a polyvinyl alcohol membrane.
    Type: Grant
    Filed: February 1, 1989
    Date of Patent: June 19, 1990
    Assignee: Texaco Inc.
    Inventors: Mordechai Pasternak, Craig R. Bartels, John Reale, Jr.
  • Treatment of compositions containing water and organic oxygenates
    Patent number: 4910344
    Abstract: Aqueous compositions containing organic oxygenates such as methyl isobutyl ketone are treated by pervaporation through a polyvinyl alcohol/polyacrylic acid membrane to yield retentate containing increased concentration of oxygenate.
    Type: Grant
    Filed: February 1, 1989
    Date of Patent: March 20, 1990
    Assignee: Texaco Inc.
    Inventors: Mordechai Pasternak, Craig R. Bartels, John Reale, Jr.
  • Separation of organic liquids
    Patent number: 4877529
    Abstract: Mixtures containing methanol and dimethyl carbonate or methanol and methyl t-butyl ether may be treated by pervaporation to cover product containing decreased quantity of methanol.
    Type: Grant
    Filed: July 22, 1988
    Date of Patent: October 31, 1989
    Assignee: Texaco Inc.
    Inventors: Mordechai Pasternak, Craig R. Bartels, John Reale, Jr.
  • Treatment of water
    Patent number: 4872991
    Abstract: Aqueous liquor containing immiscible hydrocarbon liquid, such as produced water from an offshore petroleum drilling platform, is treated by gravity separation, skimming, and nanofiltration.
    Type: Grant
    Filed: July 5, 1988
    Date of Patent: October 10, 1989
    Assignee: Texaco Inc.
    Inventors: Craig R. Bartels, Tansukhlal G. Dorawala, Michael T. Stephenson, Mordechai Pasternak, John Reale, Jr.
  • Dehydration of glycols
    Patent number: 4802988
    Abstract: Concentration of aqueous solutions of ethylene glycol may be effected by a composite membrane including a glutaraldehyde--crosslined polyvinyl alcohol bonded to a porous layer of polysulfone on a polyester backing.
    Type: Grant
    Filed: September 17, 1987
    Date of Patent: February 7, 1989
    Assignee: Texaco Inc.
    Inventors: Craig R. Bartels, John Reale, Jr.
  • Separation of organic liquids
    Patent number: 4798674
    Abstract: Mixtures containing methanol and dimethyl carbonate or methanol and methyl t-butyl ether may be treated by pervaporation to recover product containing decreased quantity of methanol.
    Type: Grant
    Filed: March 10, 1988
    Date of Patent: January 17, 1989
    Assignee: Texaco Inc.
    Inventors: Mordechai Pasternak, Craig R. Bartels, John Reale, Jr.
  • Low ash, low phosphorus motor oil formulations
    Patent number: 4330420
    Abstract: Described are low ash, low phosphorus motor oils having improved oxidation stability as a result of the addition thereto of synergistic amounts of a dialkyldiphenylamine antioxidant and of a sulfurized polyolefin. The synergism between the two additives compensates for the decreased amounts of phosphorus in the form of zinc dithiophosphate such that the oils retain an SE quality rating.
    Type: Grant
    Filed: July 9, 1981
    Date of Patent: May 18, 1982
    Assignee: Texaco Inc.
    Inventors: William R. White, John Reale, Jr.