Lithographic printing inks comprising acid-functional vinyl polymer and polyol phase
CA 2352334 A1 · Owner: Kingman, Kevin P. · Inventors: Oberski, Michael V.; Balyo, Rick A.; Kingman, Kevin P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides single fluid lithographic printing inks that include a continuous phase and a discontinuous polyol phase. The continuous phase includes an acid-functional vinyl resin. The polyol phase includes a liquid polyethylene glycol material. The invention further provides a method of making a single fluid ink composition and a process of printing using the single fluid ink of the invention with improved resistance to toning.
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 November 29, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 29, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 29, 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.