Two-package type pressure-sensitive adhesive composition
CA 1215190 A · Owner: Takeda Chemical Industries, Ltd. · Inventors: Miyake, Jun-Ichi; Kamatani, Yoshio; Yamazaki, Kyuya
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a two-package type pressure-sensitive adhesive composition which comprises (1) a polyol component and (2) a polyurethane having a terminal free isocyanate group obtained by the reaction of an isocyanate component having an oxadiazine-2,4,6-trione ring and if necessary other organic diisocyanates at a specific proportion. The composition has an excellent heat resistance and stable pressure-sensitive adhesion.
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
- Granted December 9, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 9, 2003.
- 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.