Patents by Inventor Robert Grigsby

Robert Grigsby 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).

  • Liquid terephthalic ester polyols and polyisocyanurate foams therefrom
    Patent number: 4469824
    Abstract: Terephthalic esters may be made to remain in a liquid form by reacting recycled or scrap polyethylene terephthalate (PET) with diethylene glycol and one or more oxyalkylene glycols and stripping out some of the ethylene glycol present. The mole ratio of glycols to scrap PET should also be greater than 1.2:1. This process keeps any diesters from separating out of the solution as solids. These liquid terephthalic esters are useful as polyol extenders in rigid polyurethane foams and as the sole polyol component in polyisocyanurate foams.
    Type: Grant
    Filed: November 18, 1983
    Date of Patent: September 4, 1984
    Assignee: Texaco, Inc.
    Inventors: Robert A. Grigsby, Jr., George P. Speranza, Michael E. Brennan
  • Process for preparing alcohols from olefins and synthesis gas
    Patent number: 4469895
    Abstract: This invention concerns an improved process of preparing predominantly linear alcohols which comprises the steps of contacting a mixture of terminal and/or internal olefins and synthesis gas with a catalyst system comprising a ruthenium-containing compound in conjunction with one or more tertiary amine promoters, dispersed in a low melting quaternary phosphonium salt and heating said resultant reaction mixture under a pressure of 100 psi or greater at a temperature of at least 50.degree. C. for a sufficient time to produce said alcohols.
    Type: Grant
    Filed: October 21, 1982
    Date of Patent: September 4, 1984
    Assignee: Texaco Inc.
    Inventors: John F. Knifton, Robert A. Grigsby, Jr.
  • Alcohols and aldehydes prepared from olefins and synthesis gas
    Patent number: 4451679
    Abstract: This invention concerns a process of preparing alcohols and aldehydes which comprises the steps of contacting a mixture of terminal and/or internal olefins and synthesis gas with a catalyst system comprising a ruthenium-containing compound dispersed in a low melting quaternary phosphonium or ammonium base or salt and heating said resultant reaction mixture under a pressure of 100 psi or greater at a temperature of at least 50.degree. C. for a sufficient time to produce said alcohols and aldehydes.
    Type: Grant
    Filed: October 21, 1982
    Date of Patent: May 29, 1984
    Assignee: Texaco Inc.
    Inventors: John F. Knifton, Jiang-Jen Lin, Robert A. Grigsby, Jr., Walter H. Brader, Jr.