The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 06, 1985
Filed:
Dec. 07, 1983
Barton Milligan, Coplay, PA (US);
George B DeLaMater, Macungie, PA (US);
Air Products and Chemicals, Inc., Allentown, PA (US);
Abstract
This invention pertains to a process for preparing polyhydroxy aromatic compounds by reacting an alkali metal hydroxide with a hydroxymononuclear aromatic compound, e.g., phenol or resorcinol. The reaction is carried out in the presence of a metallic hydrogenation catalyst, suitably nickel, or cobalt, the metal being present in an amount sufficient for catalyzing the reaction. The polyhydroxy aromatic compound is then formed by adding a protonating agent to the reaction product, with the protonating agent liberating the hydroxy compound from the salt.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile