Pressure-sensitive adhesive having improved adhesion to plasticized vinyl substrates
CA 1338367 C · Owner: Minnesota Mining And Manufacturing Company · Inventors: Landin, Donald T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Normally tacky and pressure-sensitive adhesive having excellent long-term adhesion to plasticized vinyl substrates, is prepared from a representative blend of dioctyl phthalate plasticizer and a copolymer of isooctyl acrylate, N-vinyl pyrrolidone, and acrylic acid; alternatives for each component are disclosed. In a preferred embodiment of the invention, the adhesive is coated in a thin layer on a sheet backing material to form a normally tacky and pressure-sensitive adhesive tape.
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 June 4, 1996. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 4, 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.