Method of sealing exposed top surface of relatively static...

Details Method of sealing exposed top surface of relatively static... Method of sealing exposed top surface of relatively static...

C - Chemistry, Metallurgy

09

K

31/66

C09K 3/10 (2006.01) B01J 19/00 (2006.01) B01J 19/16 (2006.01) C02F 1/00 (2006.01) C08G 18/10 (2006.01)

Patent

CA 2007309

ABSTRACT A buoyant, gelled or solid, continuous, flexible composite cover useful for sealing essentially the entire area of the exposed, top surface of a body of liquid in a relatively static condition thereby suppressing the evolution or release of volatile products such as gases, fumes, vapors, etc. from the exposed surface of said body of liquid through its exposed top surface. Said cover comprising water as the major component by weight, water-insoluble, low density filler material or blend of such material, hydrophilic, polymeric gelling agent derived from isocyanate-terminated prepolymer or polyhydroxy polymer, and surfactant or wetting agent and a method of sealing said exposed top surface of a body of liquid.

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