Patents by Inventor Peter K. Mattschei

Peter K. Mattschei 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: 4233465
    Abstract: A method is provided for fractionation of oil obtained by pyrolysis of lignocellulosic materials to obtain useful chemical fractions, including a phenolic fraction which is suitable as a total or partial replacement for phenol in making phenol-formaldehyde resins. The method comprises mixing the oil with a strong base such as sodium hydroxide to a pH level at which the neutral fraction of the oil is selectively soluble in a solvent such as methylene chloride or ether, and the mixture is extracted with the solvent to obtain a first extract containing the solvent and the neutral fraction, and a first raffinate containing the remaining fractions of the oil, i.e., the phenolic fraction, the organic acids fraction and an amorphous residue. The neutral fraction is recovered by distillation and the first raffinate is mixed with sulfuric acid to lower its pH to a level at which the phenolic fraction is selectively soluble in the solvent.
    Type: Grant
    Filed: November 29, 1978
    Date of Patent: November 11, 1980
    Assignee: American Can Company
    Inventors: Robert M. Gallivan, Peter K. Mattschei