Patents by Inventor Brian John Griffiths

Brian John Griffiths 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).

  • Catalysts and carriers therefor
    Patent number: 4064154
    Abstract: A catalyst carrier substance which can be obtained by reacting an inorganic particulate solid having surface hydroxyl groups with an organosilicon compound containing sulphur. The carrier may be converted to a supported catalyst by reaction with a compound or complex of platinum or rhodium. The catalysts can be recovered and recycled and are useful in hydrogenation, hydroformylation and oligomerization reactions. They are of particular interest with respect to hydrosilylation reactions.
    Type: Grant
    Filed: September 7, 1976
    Date of Patent: December 20, 1977
    Assignee: Dow Corning Corporation
    Inventors: Grish Chandra, Brian John Griffiths
  • Organosilicon compounds
    Patent number: 4005116
    Abstract: Disilazanes having sulphur atoms attached to the silicon atoms through divalent aliphatic hydrocarbon radicals having from 2 to 6 carbon atoms. They are prepared by reacting a disilazane having olefinically unsaturated hydrocarbon radicals attached to the silicon atoms with a thiol, in the presence of a free radical generator. The disilazanes are useful as intermediates and for the treatment of particulate solids.
    Type: Grant
    Filed: November 6, 1975
    Date of Patent: January 25, 1977
    Assignee: Dow Corning Limited
    Inventor: Brian John Griffiths
  • Catalysts and carriers therefor
    Patent number: 4005046
    Abstract: A catalyst carrier substance which can be obtained by reacting an inorganic particulate solid having surface hydroxyl groups with an organosilicon compound containing sulphur. The carrier may be converted to a supported catalyst by reaction with a compound or complex of platinum or rhodium. The catalysts can be recovered and recycled and are useful in hydrogenation, hydroformylation and oligomerization reactions. They are of particular interest with respect to hydrosilylation reactions.
    Type: Grant
    Filed: November 6, 1975
    Date of Patent: January 25, 1977
    Assignee: Dow Corning Limited
    Inventors: Grish Chandra, Brian John Griffiths
  • Preparation of organosilicon compounds
    Patent number: 3992427
    Abstract: Process for preparing an organosilicon product by the reaction of a silicon compound having SiH groups with an organic or organosilicon compound having aliphatic unsaturation in the molecule. The process is carried out in the presence of, as catalyst, a compound or complex of platinum or rhodium and also in the presence of a cobalt salt of a monocarboxylic acid. The cobalt salt improves the catalytic performance of the compound or complex of platinum or rhodium.
    Type: Grant
    Filed: February 20, 1976
    Date of Patent: November 16, 1976
    Assignee: Dow Corning Limited
    Inventors: Grish Chandra, Brian John Griffiths, Stephen Westall