Emulsion polymerised polymer
CA 2056315 A1 · Owner: Scholl Plc · Inventors: Kiamil, Sinan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An emulsion polymerised polymer, a process for its preparation and its use in the form of an adhesive particularly in surgical or medical dressings or plasters wherein the polymer is derived by polymerising in an aqueous emulsion a composition comprising:, (A) a substantially water-insoluble monomer; with (B) (1) a substantially water-insoluble polar monomer; and/or (B) (2) a substantially water-insoluble polyfunctional monomer; in the presence of a substantially water-soluble surfactant which has been converted to a substantially water-insoluble form after polymerisation of monomers (A) and (B).
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
- Filed November 27, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 27, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 27, 2013.
- 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.