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:
Jul. 20, 1976
Filed:
Jan. 23, 1975
Applicant:
Inventors:
Assignee:
Ube Industries, Ltd., Tokyo, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2604045 ; 260404 ;
Abstract
11-CYANO-UNDECANOIC ACID IS ISOLATED IN ITS AMMONIUM SALT IN A HIGH PURITY FROM A CRUDE MATERIAL BY THE METHOD WHEREIN THE CRUDE MATERIAL CONTAINING 11-CYANO-UNDECANOIC ACID IS DISSOLVED IN AN ORGANIC SOLVENT CONSISTING OF ONE OR MORE AROMATIC HYDROCARBONS HAVING 6 TO 8 CARBON ATOMS, AMMONIUM GAS IS INTRODUCED INTO THE CRUDE MATERIAL SOLUTION TO CONVERT THE DISSOLVED 11-CYANO-UNDECANOIC ACID ITS AMMONIUM SALT, CRYSTALS AND, THEREAFTER, THE CRYSTALS OF AMMONIUM SALT ARE SEPARATED FROM THE SOLUTION.