Membrane-forming foam composition and method

Details Membrane-forming foam composition and method Membrane-forming foam composition and method

1989-09-29

1991-02-05

Lusignan, Michael

Coating processes

Foraminous product produced

Filter, sponge, or foam

427136, 106122, 106900, 252321, 252307, 521 65, 521 88, 521 89, B05D 500, B05D 510, B05C 116, E01C 500

Patent

active

049903730

ABSTRACT:
An aqueous foamable membrane-forming composition comprised of a water dispersible polymeric latex, preferably styrene-butadiene latex, and an alkyl ether sulfate surface active agent. The composition desirably contains a alcohol having 12 to 14 carbon atoms, an acrylic acid polymer viscosity modifying agent and powdered carbon. Compositions of the invention in dilute aqueous form can be foamed and deposited on a surface to be covered, such as a landfill. Upon standing, the foam develops into a substantially stable, weather resistent membrane.

REFERENCES:
patent: 2945322 (1960-07-01), Gaeth et al.
patent: 3466873 (1969-09-01), Present
patent: 3954662 (1976-05-01), Salyer et al.
patent: 4004049 (1977-01-01), Horwat et al.
patent: 4421788 (1983-12-01), Kramer
patent: 4519338 (1985-05-01), Kramer
patent: 4874641 (1989-10-01), Kittle

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