Adhesive composition and low temperature applicable adhesive sheet
CA 2458646 A1 · Owner: Abe, Hidetoshi · Inventors: Abe, Hidetoshi; Takamatsu, Yorinobu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An adhesive composition having pressure sensitivity includes an adhesive polymer and a nonadhesive polymer. The adhesive polymer has a glass transition point by a dynamic viscoelasticity measuring method of -60~C to -5~C and the , nonadhesive polymer has a glass transition point by a differential scanning calorimeter of -5~C or less, and a fusing point of higher than 25~C by a differential scanning calorimeter, and also has compatibility with the adhesive polymer in uncrystallized state. The adhesive composition can effectively enhance pressure sensitive adhesivity at low temperatures and tack suppression effect at the same time, which makes easy an accurate positioning of the site …
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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 August 27, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 27, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 27, 2024.
- 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.