Lubricants, and process for thickening organic fluids
CA 1076099 A · Owner: Snamprogetti S.P.A. · Inventors: Ciuti, Brunello
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a process for thickening an organic liquid, adapted for use as a lubricant grease, selected from the group consisting of mineral oil polyglycols, acyclic aliphatic and cycloaliphatic alcohols ketones, esters, aromatic and aliphatic hydrocarbons chlorinated aromatic hydrocarbons, silicones and mixtures, thereof. Said process comprises mixing with the organic liquid, under the influence of heat and with grinding an, aliphatic sulphonate of a metal belonging to Group II or III of the Periodic Table, and an oxide of said metal in sufficient quantity to render said sulphonate overbasic wherein said, sulphonate is present in an amount of from 5 to 40% by weight.
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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
- Granted April 22, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 22, 1997.
- 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.