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:
Nov. 22, 1977
Filed:
Apr. 29, 1976
Applicant:
Inventors:
Eli W Blaha, Wheaton, IL (US);
Sandra K Koster, Aiken, SC (US);
Chen-Shen Wang, Naperville, IL (US);
Assignee:
Standard Oil Company (Indiana), Chicago, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
526 52 ; 260 / ; 260 / ; 260 / ; 2606 / ; 260670 ; 526 43 ; 526 46 ; 526 49 ; 526346 ;
Abstract
Solid aromatic polymers, such as branched polyphenylenes, are reacted with a reactive gas such as a NO.sub.2 -N.sub.2 O.sub.4 mixture, chlorine and sulfur trioxide without solvent or catalyst. The extent of reaction depends on reaction time and temperature and on the concentration of the reactive gas.