Lubricant and method of cold-rolling aluminium
CA 1257864 A · Owner: Alcan International Limited · Inventors: Budd, Michael K.; Foster, Mark H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Load-bearing additives for lubricants for coldrolling aluminium, particularly foil rolling down to a thickness below 50 microns, comprise a methyl ester of a saturated straight-chain C10 - C14 carboxylic acid particularly methyl dodecanoate. A saturated straight-chain C10 - C14 alcohol, or a saturated straight-chain C8 - C14 carboxylic acid may also be present. The lubricants permit greater rolling speeds and improved foil properties during and after annealing.
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 July 25, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 25, 2006.
- 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.