Water resistant ink jet recordable substrate
CA 2482905 A1 · Owner: Ppg Industries Ohio, Inc. · Inventors: Nowakowski, Peter M.; Parrinello, Luciano M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed to an ink jet recordable substrate. In particular, the present invention relates to a water-resistant coating composition for an ink jet recordable substrate a method for preparing the , coating composition and a method of applying said coating composition to produce a water-resistant ink jet recordable substrate. The water-resistant coating composition includes an aqueous polyurethane dispersion; an aqueous solution of a cationic nitrogen-containing polymeric dye fixative compound; and an acrylic polymer, wherein the coating composition has a pH of 7 or less.
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 April 16, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 16, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 16, 2025.
- 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.