Acrylate hot melt adhesive containing zinc carboxylate
CA 1295075 C · Owner: Enanoza, Rudyard M. · Inventors: Enanoza, Rudyard M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, An improved hot melt pressure sensitive adhesive composition comprises copolymerized monomeric acrylate or methacrylate ester of a non-tertiary alcohol polar, monomer such as acrylic acid, 2-polystyrylethyl methacrylate macromolecular monomer and sufficient zinc carboxylate to endow the composition with improved melt flow properties and cohesive strength. The invention also provides adhesive coated sheet materials comprising the adhesive composition coated onto a flexible sheet.
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 January 28, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 28, 2009.
- 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.