Patents by Inventor Guiseppe Gubitosa

Guiseppe Gubitosa 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).

  • Method for producing lower polyhydric alcohols by hydrogenolysis of higher polyhydric alcohols
    Patent number: 5354914
    Abstract: A metallic catalyst composition on an inert support, suitable in particular for hydrogenolysis reactions of higher polyhydric alcohols, which comprises the following relative to 100 parts of the catalyst:a) 0.5 to 5 weight % ruthenium;b) 1 to 10 weight % tin.The catalyst is used in particular for producing lower polyhydric alcohols such as ethanediol, propylene glycol, butanediol and glycerol, by means of hydrogenolysis reaction of higher polyhydric alcohols.
    Type: Grant
    Filed: January 26, 1993
    Date of Patent: October 11, 1994
    Assignees: Montecatini Tecnologie S.r.l., Novamont S.p.A.
    Inventors: Guiseppe Gubitosa, Bruno Casale
  • Hydrogenation catalyst, and a method for its preparation and use, in particular for hydrogenation and/or hydrogenolysis of carbohydrates and polyhydric alcohols
    Patent number: 5326912
    Abstract: A metallic catalyst composition on an inert support, suitable in particular for hydrogenolysis reactions of higher polyhydric alcohols, characterised in that it comprises the following relative to 100 parts of the catalyst:a) 0.5 to 5 weight % ruthenium;b) 1 to 10 weight % of a metal selected from the group consisting of palladium, platinum and rhodium; andc) 0.5 to 2.5 weight % copper,in which the copper content is lower than the content of the metal b).The catalyst is used in particular for producing lower polyhydric alcohols such as ethanediol, propylene glycol, butanediol and glycerol, by means of hydrogenolysis reaction of higher polyhydric alcohols.
    Type: Grant
    Filed: January 29, 1993
    Date of Patent: July 5, 1994
    Assignees: Montecatini Technologie S.r.l., Novamont S.p.A.
    Inventors: Guiseppe Gubitosa, Bruno Casale