Demulsifier additive compositions for lubricants and fuels and concentrates containing the same
CA 1104120 A · Owner: The Lubrizol Corporation · Inventors: Friihauf, Edward J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Lubricant and fuel compositions characterized by improved demulsifying properties are disclosed which properties, are contributed substantially by an additive comprising a mixture of:, (A) One or more reaction products of a hydrocarbonsubstituted succinic acid or anhydride with one or more polyalkylene glycols or monoethers thereof (B) One or more organic basic metal salts and, (C) One or more alkoxylated amines.
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 June 30, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 30, 1998.
- 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.