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:
Jan. 05, 1993
Filed:
Sep. 04, 1990
Applicant:
Inventor:
Carey N Barry, Jr, Spartanburg, SC (US);
Assignee:
Milliken Research Corporation, Spartanburg, SC (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01B / ;
U.S. Cl.
CPC ...
252500 ; 427256 ; 4273855 ; 4274071 ; 4274072 ; 528422 ; 528490 ; 528491 ; 528502 ; 528503 ;
Abstract
A process for heat treating substituted and/or unsubstituted polyaniline which has been doped with a relatively non-volatile acid is provided. Subjecting polyaniline to temperatures of between 70.degree. C. and 200.degree. C. for a moderate amount of time dramatically lowers the resistance, and therefore increase the conductivity, of the polyaniline. Heat treatment of polyaniline may be advantageously combined with a subsequent rinsing step to produce a sample which has superior stability and good conductivity.