Modified succinimides (ix)
CA 1316173 C · Owner: Chevron Research And Technology Company · Inventors: Buckley, Thomas F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed are additives which are useful as dispeasants in marine crankcase oils, hydraulic oils and, lubricating oils. In particular, disclosed are polyamino alkenyl or alkyl succinimides modified by reaction with a Compound of the formula:, X?(?)mOR4O(?)m?X wherein R4 is selected from the group consisting of a divalent hydrocarbyl group of from 2 to 30 carbon atoms with the proviso that the hydrocarbyl carbon atom bound to one, X?(?)mO-, group is not also bound to the other X?(?)mO-, group and -R5?-OR5?p wherein R5 is alkylene of from 2 to 5 carbon atoms and p is an integer of from 1 to 100; X is selected from the group consisting of bromo chloro and, -OR6 wherein R6 is selected from the …
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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 13, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 13, 2010.
- 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.