Temperature sensitive adhesive composition
CA 2275200 A1 · Owner: Dusenbery, Casey Lynn · Inventors: Soerens, Dave Allen; Dusenbery, Casey Lynn
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A temperature-triggerable water soluble adhesive composition comprising a poly (vinyl alkyl ether), preferably poly (vinyl methyl ether) and a hydrophobic polymer, preferably a hydrophobic polystyrene resin or an acrylate. The adhesive composition of the present invention retains its integrity at fluid temperatures above approximately 33 ~C but is water soluble at fluid , temperatures below approximately 22 ~C. The adhesive composition of the present invention may be disposed of by flushing in a conventional toilet.
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 December 12, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 12, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 12, 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.