Pigment-containing powder coating composition
CA 2303555 A1 · Owner: Ubbink, Marten Theodoor · Inventors: Ubbink, Marten Theodoor; Noordegraaf, Ferdinand
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 pigment-containing thermosetting, powder coating composition which contains at least one type of pigment having a special effect and is produced by blending comminuted particles of a thermosetting resin a, hardener, customary additives and fillers and the said pigment, or a preparation containing the pigment subjecting the blend, thus obtained to extrusion at elevated temperature and then carrying out a cooling operation to obtain an extrudate followed by crushing, grinding and screening said extrudate to obtain the said powder coating composition wherein the blend to, be extruded further includes a resin-free carrier which protects the pigment having the special …
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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 March 31, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 31, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 31, 2022.
- 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.