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:
Dec. 06, 1977
Filed:
Jul. 09, 1976
Applicant:
Inventors:
Hans Wild, Frankenthal, DT;
Rudolf Jung, Worms, DT;
Adolf Echte, Ludwigshafen, DT;
Johann Zizlsperger, Schriesheim, DT;
Hermann Gausepohl, Mutterstadt, DT;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ; C07C / ;
U.S. Cl.
CPC ...
526 67 ; 2604659 ; 526 68 ; 526 77 ;
Abstract
Acrylonitrile or monomer mixtures containing acrylonitrile are purified by treating them with alkaline reacting compounds followed by distillation. The products are particularly suitable for the manufacture of acrylonitrile polymers showing improved color stability.