Conductive polyolefin compositions
CA 1057948 A · Owner: Exxon Research And Engineering Company · Inventors: Murer, Angelo; Amadei, Ottavio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electrically conductive non-porous polyolefin composition comprising a homogeneous mixture of a propylene-ethylene copolymer containing 20 mol % to 35 mol % ethylene and at least 30 parts by weight of finely divided conductive carbon e.g. carbon black, per 100?parts by weight of copolymer. This composition may be made by mixing under conditions of high shear e.g. in a Bambury mixer and at a temperature of at least 100°C the propylene-ethylene copolymer and the finely divided conductive carbon, the mixing being continued until a homogeneousblend is obtained. A bi-polar plate for an electrochemical cell may be formed by obtaining a homogeneous blend of polyolefin and finely divided …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted July 10, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 10, 1996.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.