Polymer blended membranes
CA 1268307 C · Owner: Beuhler, Allyson J. · Inventors: Polak, Anthony J.; Beuhler, Allyson J.; Cramm, Joan A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
POLYMER BLENDED MEMBRANES", . ABSTRACT A thin-film polymer-blend membrane comprising a blend of an inorganic compound and a compatible organic polymer is disclosed. The inorganic compound may be a heteropoly acid or salt thereof a, phosphoric acid or sulfuric acid and may be present in the blend in an amount of from 1% to 70% by weight of the blend. The blend may have electrically conductive particles added. The blend may be supported on a porous support. A method for the preparation of the membrane is disclosed as well as a device for sensing hydrogen or separating hydrogen from other gases which uses the membranes.
Read the whole patent
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 May 1, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 1, 2007.
- 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.