Heat collapsing foam system

Details Heat collapsing foam system Heat collapsing foam system

1980-06-02

1982-04-27

Kimlin, Edward C.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

8477, 156238, 156324, 156499, 156555, 252 86, 25217422, 252307, 252321, 252362, 264 52, 427226, 4273899, 427394, 428290, B32B 3126, B05D 300

Patent

active

043269044

ABSTRACT:
A process of treating sheet materials with an aqueous treating composition is disclosed in which surfactants are incorporated in the composition to permit it to be foamed with gas to provide a foam which is stable in the form of a thin layer long enough to be handled, but which will collapse completely when heated. This is preferably done by employing a mixture of water soluble surfactant to stabilize the foam and water insoluble defoamer to break the foam when heat is applied. This foam is applied to a surface of the sheet material to provide stable foam thereon, and heat is employed to simultaneously cause the foam to collapse and dry the composition.

REFERENCES:
patent: 3030232 (1962-04-01), Morgenstern
patent: 3844862 (1974-10-01), Sauer et al.
patent: 3989869 (1976-11-01), Neumaier et al.
patent: 4023526 (1977-05-01), Ashmus et al.
Schwartz, Anthony M. et al., Surface Active Agents, New York: Interscience Publishers, Inc. (1949), pp. 514-517.

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