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. 04, 1989
Filed:
Oct. 05, 1987
Michel Fontanille, Montmorency, FR;
Nicolas Krantz, Bernay, FR;
Jean-Claude Gautier, Ablon Sur Seine, FR;
Serge Raynal, Draveil, FR;
Societe Nationale des Poudres et Explosifs, Paris, FR;
Abstract
The invention relates to a process for the preparation of conductive polymers or prepolymers and to conductive polymers or prepolymers. The process of the invention consists of reacting a polymer containing ethylenic unsaturations such as a hydroxytelechelic polybutadiene with a silane compound of formula ##STR1## in which R.sub.1 denotes a hydrocarbon group containing at least one heteroatom bearing mobile electrons, such as the oxygen of an ether group, and R.sub.2 and R.sub.3 denote a substituted or unsubstituted organic residue or a group R.sub.1. The polymer obtained is precipitated by the addition of a compound which is not a solvent for the polymer, and is separated from the reaction medium. The polymers obtained have an electrical conductivity which is multiplied by a factor of 10.sup.5 relative to the unmodified polymer. The present invention applies in particular in the field of the polymer industry.