Pressure-sensitive adhesive composition for skin
CA 2115614 A1 · Owner: Johnson & Johnson Consumer Products, Inc. · Inventors: Kumakura, Masahiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Construction of the invention A pressure-sensitive adhesive composition for skin comprising: 22-40 % by weight of a base composed substantially of an A-B-A type block copolymer wherein an A-block thereof is composed of styrene and/or styrene derivatives and a B-block thereof is composed of a conjugated diene and/or lower alkene 40-60 % by weight of a tackifier, and 5-23 % by weight of a plasticizer. Effects of the invention, The pressure-sensitive adhesive of the present invention has excellent adhesion strength to a dry skin surface and a wet skin, surface. Selected figure Figure 3.
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 February 14, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 14, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 14, 2016.
- 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.