Process for the transportation of viscous oils
CA 1294512 C · Owner: Huls Aktiengesellschaft · Inventors: Balzer, Dieter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
23443-335, Abstract of the Disclosure, Disclosed herein is a process for the transportation of heavy oil, in which an oil-in-water emulsion containing an emulsifier, at least 10 to 15% water and the heavy oil is transported. As the emulsifier is used a mixture of a carboxymethylated oxethylate of the formula:, R-(OCH2-CH2)n-OCH2COOM and an ether sulfate of the formula:, R'-(OCH2-CH2)m-SO3M' in which R and R' are each a saturated or unsaturated linear or branched aliphatic hydrocarbon radical with 8 to 20 carbon atoms an alkyl aromatic hydrocarbon radical with 4 to 16 carbon atoms or a di- or tri-alkyl aromatic hydrocarbon radical with a total of 5 to 20 and 7 to 24 carbon atoms, …
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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 January 21, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 21, 2009.
- 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.