Epoxy coating powders with wrinkle finishes
CA 1161183 A · Owner: Polymer Corporation (The) · Inventors: Schreffler, Dean A.; Noonan, Charles M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An epoxy coating powder for application by fusion coating processes produces a coating of low gloss and randomly developed wrinkle surface patterning. A typical formulation comprises a major weight proportion of epoxy resin type 3 of which about 15% comprises such resin compounded with 5% polyalkylacrylate flow promoter, about 18% of the total weight of the resin being methylene disalicylic acid and from about 42%, to 53% of resin weight being filler. A BCl3 amine catalyst is incorporated and the materials are melt-mixed extruded to, pellets, and the pellets ground to pass 60 mesh screen. Cure of the applied coating is effected at about 150°C to 200°C for from 20 to 10 minutes. Compositions …
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
- Granted January 24, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 24, 2001.
- 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.