Patents by Inventor Leonard Steinbach

Leonard Steinbach 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).

  • Patent number: 4791222
    Abstract: Described is a novel process for preparing dihydromyrcenol defined according to the structure: ##STR1## or the acetate thereof comprising the steps of: (i) hydrogenating .alpha.-pinene to form .alpha.-pinane;(ii) pyrolizing the resulting .alpha.-pinane to form a mixture of hydrocarbons including dihydromyrcene (or, in the alternative, forming substantially the same mixture of hydrocarbons by other well known means);(iii) reacting the resulting pinane pyrolyzate or like mixture with hydrogen chloride gas in the presence of an acid catalyst, e.g., Lewis acid or protonic acid, to form a mixture of tertiary chlorides; then(iv) reacting the mixture of tertiary chlorides with water or acetic acid int he presence of a hydroxylation catalyst defined according to the formula:M.sub.P X.sub.Qwherein M represents an element selected from the group consisting of Zn, Ca, Mg, Mn and Co; wherein X represents O or an anion, e.g.
    Type: Grant
    Filed: July 31, 1984
    Date of Patent: December 13, 1988
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Mark A. Sprecker, Stephen R. Wilson, Leonard Steinbach, Thomas O'Rourke