ES2125347T3

Electrically conductive compositions of carbon particles and methods for their production.

Abstract

ELECTRICALLY CONDUCTIVE COMPOSITIONS OF CARBON PARTICLES HAVE BEEN PRESENTED THAT HAVE THIN COATINGS OF A CONDUCTIVE POLYMER. THIN COATINGS OF CONDUCTIVE POLYMER INTERACT ELECTRICALLY WITH EACH CARBON PARTICLE AND PROTECT CARBON PARTICLES FROM CONDUCTIVE FAILURES. BECAUSE THE CONDUCTIVE COMPOSITIONS OF COATED CARBON PARTICLES MAINTAIN THEIR CONDUCTIVITY CHARACTERISTICS EVEN AFTER LONG EXPOSURE TO CHEMICALS, THEY ARE USEFUL AS FILLING MATERIALS USED FOR USED POLYMER COMPOSITIONS.

Term

Term ended

Projected expiry passed 8 July 2013, 13.2 years ago.

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13 members in 7 offices

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DocumentOfficeKindDate
19920930738United States of America
93073892United States of AmericaA
93073892United States of AmericaA
93918170
US19920930738

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CA2142355A1CanadaA1
WO9405016A1World Intellectual Property Organization (WIPO)A1
WO9411885A1World Intellectual Property Organization (WIPO)A1
EP0655165A1European Patent Office (EPO)A1
EP0655165A4European Patent Office (EPO)A4
US5498372AUnited States of AmericaA
JPH08502762AJapanA
EP0655165B1European Patent Office (EPO)B1
DE69321959D1GermanyD1
ES2125347T3This recordSpainT3
DE69321959T2GermanyT2
US6132645AUnited States of AmericaA
CA2142355CCanadaC