JOHN FARNUM GRAMLING
Pilots at Jumbo Rd, Orangeburg, SC
License number
South Carolina A2871396
Issued Date
Feb 2017
Expiration Date
Feb 2019
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
362 Jumbo Rd, Orangeburg, SC 29115
Professional information
Biphenol Process
US Patent:
4847434, Jul 11, 1989
Filed:
Jan 21, 1988
Appl. No.:
7/146428
Inventors:
George L. Mina - Orangeburg SC
Dixie E. Goins - Baton Rouge LA
John S. Gramling - Orangeburg SC
Dixie E. Goins - Baton Rouge LA
John S. Gramling - Orangeburg SC
Assignee:
Ethyl Corporation - Richmond VA
International Classification:
C07C 3916
US Classification:
568730
Abstract:
Phenols, e. g. 2,6-di-tert-butylphenol, are coupled to form biphenols, e. g. 4,4'-bis(2,6-di-tert-butylphenol), by reaction with aqueous hydrogen peroxide under basic conditions in the presence of a phase transfer agent.