Porous molecularly imprinted polymer membranes
CA 2492648 A1 · Owner: Warner, Philip James · Inventors: Sergeyeva, Tetyana Anatolivna; Piletska, Olena Volodimirivna; Elska, Ganna Valentinivna
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Highly porous substance-selective polymeric membranes are produced by copolymerisation of functional monomers and cross-linker in the presence of template, plasticiser (non-extractable component) and pore-forming component , (extractable component). Extraction of the template and porogen molecules leads to the formation of small (< 100 nm) and large (> 500 nm) pores including small pores having a shape and arrangement of functional groups complementary to the template molecule. The membranes possess enhanced affinity towards the template and its analogues and also have high flexibility and porosity. Such membranes can be used in analytical chemistry (as sensor elements and for …
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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
- Filed July 11, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 11, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 11, 2025.
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Timeline
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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.