Hot melt pressure sensitive adhesive composition
CA 2331401 C · Owner: H.B. Fuller Company · Inventors: Beker, Hans-Ulrich; Remmers, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention is an article comprising a hot melt PSA permanently adhered to at least one substrate wherein the adhesive has a shear adhesion failure temperature of greater than about 79 ~C (175 ~F). Preferably the adhesive is , pattern coated directly onto a polyolefin film for use in a variety of articles including adhesive bandages, tape and feminine napkins.
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 June 10, 1999 and granted August 9, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 10, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 10, 2021.
- 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.