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:
May. 23, 1978
Filed:
Mar. 24, 1977
Applicant:
Inventor:
Robert G Schultz, St. Louis, MO (US);
Assignee:
Monsanto Company, St. Louis, MO (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568729 ;
Abstract
Iodine is employed as a promoter for the reaction between phenol and a 1,2-dihaloethane wherein the halogen is chlorine, bromine or iodine using a zinc-containing catalyst to produce dihydroxydiphenylethanes, especially the 4,4'-isomer.