Patents by Inventor John H. Purnell

John H. Purnell 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).

  • Proton-catalyzed reactions catalyzed by hydrogen ion-exchanged layered clays
    Patent number: 5008465
    Abstract: The invention relates to the use of hydrogen ion-exchanged layered clays in organic reactions which are catalyzed by protons. Such organic reactions include the production of ethers by the reaction of an alcohol with an olefin or an olefin oxide, the production of an ether by the reaction of a primary or secondary aliphatic alcohol or an olefin oxide, the production of an alkyl aromatic compound by the reaction of an aromatic hydrocarbon with an olefin or a C.sub.2 or higher alcohol and the production of an alcohol by the hydration of an olefin.
    Type: Grant
    Filed: May 17, 1990
    Date of Patent: April 16, 1991
    Assignee: The British Petroleum Company p.l.c.
    Inventors: James A. Ballantine, Reginald Gregory, John H. Purnell, John M. Thomas, David J. Westlake
  • Lithiated clays and uses thereof
    Patent number: 4866020
    Abstract: A novel family of layered clays, called lithiated clays is disclosed. The novel layered clays are characterized by the replaceable hydrogens of the hydroxyl groups within the structure of a layered clay being replaced by lithium. A method of manufacturing the lithiated clays is disclosed together with their use as catalysts.
    Type: Grant
    Filed: March 21, 1988
    Date of Patent: September 12, 1989
    Assignee: The British Petroleum Company p.l.c.
    Inventors: Martin P. Atkins, James A. Ballantine, John H. Purnell, John Williams
  • Proton-catalysed reactions in which water is not a stoichiometric reactant catalysed by metal cation exchanged layered clays
    Patent number: 4749808
    Abstract: The invention relates to the use of metal cation-exchangeable layered clays in organic reactions which are catalysed by protons in which intercalated water is not a stoichiometric reactant. Such organic reactions include the production of esters by the reaction of an olefin or an olefin oxide with a carboxylic acid, the production of ethers by reaction of an alcohol with an olefin or an olefin oxide, the production of ethers by the reaction of a primary or secondary aliphatic alcohol or an olefin oxide, the production of bis-sec-alkyl ethers from alkenes, the production of alkyl aromatic compounds by the reaction of an aromatic hydrocarbon with an olefin or alcohol and the production of alcohols by the hydration of olefins.
    Type: Grant
    Filed: June 18, 1986
    Date of Patent: June 7, 1988
    Assignee: British Petroleum Company p.l.c.
    Inventors: James A. Ballantine, John H. Purnell, John M. Thomas
  • Proton-catalyzed reactions catalyzed by hydrogen ion-exchanged layered clays
    Patent number: 4605806
    Abstract: The invention relates to the use of hydrogen ion-exchanged layered clays in organic reactions which are catalyzed by protons. Such organic reactions include the production of ethers by the reaction of an alcohol with an olefin or an olefin oxide, the production of an ether by the reaction of a primary or secondary aliphatic alcohol or an olefin oxide, the production of an alkyl aromatic compound by the reaction of an aromatic hydrocarbon with an olefin or a C.sub.2 or higher alcohol and the production of an alcohol by the hydration of an olefin.
    Type: Grant
    Filed: February 1, 1985
    Date of Patent: August 12, 1986
    Assignee: The British Petroleum Company p.l.c.
    Inventors: James A. Ballantine, Reginald Gregory, John H. Purnell, John M. Thomas, David J. Westlake
  • Proton-catalyzed reactions catalyzed by hydrogen ion-exchanged layered clays
    Patent number: 4590294
    Abstract: The invention relates to the use of hydrogen ion-exchanged layered clays in organic reactions which are catalyzed by protons. Such organic reactions include the production of ethers by the reaction of an alcohol with an olefin or an olefin oxide, the production of an ether by the reaction of a primary or secondary aliphatic alcohol or an olefin oxide, the production of an alkyl aromatic compound by the reaction of an aromatic hydrocarbon with an olefin or a C.sub.2 or higher alcohol and the production of an alcohol by the hydration of an olefin.
    Type: Grant
    Filed: August 12, 1985
    Date of Patent: May 20, 1986
    Assignee: The British Petroleum Company Limited
    Inventors: James A. Ballantine, Reginald Gregory, John H. Purnell, John M. Thomas, David J. Westlake
  • Proton-catalysed reactions in which water is not a stoichiometric reactant catalysed by metal cation-exchanged layered clays
    Patent number: 4499319
    Abstract: The invention relates to the use of metal cation-exchangeable layered clays in organic reactions which are catalyzed by protons in which intercalated water is not a stoichiometric reactant. Such organic reactions include the production of esters by the reaction of an olefin or an olefin oxide with a carboxylic acid, the production of ethers by reaction of an alcohol with an olefin or an olefin oxide, the production of ethers by the reaction of a primary or secondary aliphatic alcohol or an olefin oxide, the production of bis-sec-alkyl ethers from alkenes, the production of alkyl aromatic compounds by the reaction of an aromatic hydrocarbon with an olefin or alcohol and the production of alcohols by the hydration of olefins.
    Type: Grant
    Filed: September 9, 1982
    Date of Patent: February 12, 1985
    Assignee: The British Petroleum Company p.l.c.
    Inventors: James A. Ballantine, John H. Purnell, John M. Thomas