Method of encapsulating organic material
CA 1250192 A · Owner: The British Petroleum Company P.L.C. · Inventors: James, Keith; Pring, Graham M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method of Encapsulating Organic Material Organic material, particularly organic material floating on a water surface, can be encapsulated by reacting in the presence of, the organic material (A) a functionalised liquid polymer containing anhydride functional groups which groups are derived from an alpha beta-ethylenically unsaturated dicarboxylic acid anhydride and (B) an alkoxylated fatty monoamine or polyamine having from 1.5 to 15 moles of alkoxylate per mole of fatty amine. The functionalised polymer (A) may be, for example, maleinised polybutadiene and the alkoxylated fatty amine may be, for example N, N1, N1-tris (2-, hydroxypropyl)-N-oleyl-1,3-diaminopropane. Preferably the, …
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 February 21, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 21, 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.