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:
Feb. 04, 1986
Filed:
Feb. 07, 1985
Applicant:
Inventors:
Makoto Imanari, Ibaraki, JP;
Hiroshi Iwane, Ibaraki, JP;
Takahiro Sugawara, Ibaraki, JP;
Tadashi Ayusawa, Ibaraki, JP;
Tadamichi Aoki, Ibaraki, JP;
Assignee:
Mitsubishi Petrochemical Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568789 ; 568784 ; 568785 ;
Abstract
A process for producing tert-amylphenols is described, comprising reacting isoamylene with phenols in the presence of an inorganic solid acid catalyst or an acidic ion exchange resin catalyst. This process permits efficient production of tert-amylphenols, i.e., 2,4-di-tert-amylphenol and p-tert-amylphenol. These tert-amylphenols are useful as starting materials for preparation of color formers for color photography, additives for resins, oil-soluble dyes, additives for lubricating oils, etc.