Process for the preparation of articles with a three-dimensional surface structure, and articles prepared by this process
CA 2185245 C · Owner: Lambert, Siegfried · Inventors: Lambert, Siegfried; Kranig, Wolfgang; Dickerhof, Karlheinz
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a process for the preparation of articles with a three-dimensional surface structure, in which a substrate is printed at, least one of the printing inks employed for the printing being varnish-repellent, and the printed substrate is then varnished. In accordance with the invention, the printed substrate is varnished with a radiation-curable varnish which contains no amino resin and comprises, A) from 18 to 99.9% by weight of an epoxy acrylate a, polyether acrylate or a polyester acrylate B) from 0.1 to 5.0% by weight of a Bronsted acid or an acid anhydride, C) from 0 to 12% by weight of a photoinitiator D) from 0 to 40 % by weight of water or at least one organic …
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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 5, 1995 and granted August 1, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 5, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 5, 2017.
- 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.