Composition and method for protection of liquid surface from heat-and mass-transfer in liquid-gas system
CA 1265669 C · Owner: Lukhovitsky, Vladimir I. · Inventors: Efimov, Andrei N.; Gendlin, Lev E.; Lukhovitsky, Vladimir I.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A b s t r a c t A composition for protection of the liquid surface from heat- and mass-transfer, for example from evaporation, contains a polymer limitedly swelling in the protected liquid or a mixture of said polymer with a neutral filler having a density lower than the density of the protected liquid. A method for protection of the liquid surface from heat-and mass-transfer comprising application of said composition on the surface of a liquid for, example petroleum, in an amount of from 0.1 to 2 kg per m2. Upon contacting of the polymer with the liquid the polymer rapidly swells and forms a continuous gel-like covering which hinders the heat- and mass-transfer on the liquid surface.
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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 February 13, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 13, 2007.
- 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.