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:
Oct. 22, 1996
Filed:
May. 12, 1993
Applicant:
Inventors:
Assignee:
Zipperling Kessler & Co. (GmbH & Co.), Ahrensburg, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01B / ; H01B / ;
U.S. Cl.
CPC ...
252500 ; 524439 ; 524401 ; 5285 / ; 528503 ; 428402 ;
Abstract
An intrinsically conductive polymer is in the form of a dispersible solid of primary particles with a specific surface area according to BET of >15 m.sup.2 /g and with an average diameter of less than 500 nm, in which preferably not more than 20% of aggregates with an average size >1 .mu.m are present in the particle size range >500 nm. For the manufacture of the polymer the polymerization is carried out in a solvent in which the appropriate monomer is soluble or colloidally dispersible, but in which the polymer that is formed is insoluble, whereby the temperature of the reaction mixture is not allowed to rise more than 5.degree. C. above the starting temperature.