Low-migration, low-odor and low-swelling sheet-fed offset printing ink
CA 2245178 C · Owner: Hanke, Klaus · Inventors: Borgmann, Ursula; Fuss, Thomas; Hanke, Klaus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is an offset printing ink composition comprising at least one component selected from the group consisting of (A) a colophony-modified phenolic resin (B), a maleic resin, (C) a modified hydrocarbon resin (D) a, colophony resin ester, and mixtures thereof the, composition further comprising at least one component selected from the group consisting of a water-insoluble fatty acid ester of a multivalent alcohol having a high steric spatial requirement, a water-insoluble fatty acid ester of an ethinol, and a mixture thereof wherein the, ester has steric dimensions of the diameter 1max of from about 2.0 to about 7.0 nm, and of the volume V means of from about 1.0 to about 21 nm3.
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 December 16, 1997 and granted August 27, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 16, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 16, 2019.
- 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.