Antistatically treated polymers
CA 2197045 A1 · Owner: Minder, Ernst · Inventors: Pfeiffer, Jurgen; Burkle, Markus; Grob, Markus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a composition comprising a thermoplastic structurally crosslinked, elastomeric or thermosetting polymer which comprises, (a) a polar, adsorptive inorganic or organic material in the form of fibres or particles which are in mutual contact, onto which is adsorptively bound (b) a polar antistatic agent comprising a mixture of b1 ) at least one polar organic compound having at least 5 carbon atoms and at least 3 heteroatoms, and, b2) the salt of an inorganic protic acid which is solvated or complexed in the polar organic compound. The invention also relates to a second composition comprising b) a polar inorganic or organic material, b1) a polar organic compound having …
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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 February 7, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 7, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 7, 2019.
- 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.