Water soluble binder overcoat on vesicular element containing N.

Details Water soluble binder overcoat on vesicular element containing N. Water soluble binder overcoat on vesicular element containing N.

1977-02-22

1978-06-06

Welsh, John D.

Gas separation: apparatus

Electric field separation apparatus

Including gas flow distribution means

96 91R, 961141, 96 27R, 96 75, G03C 152, G03C 168

Patent

active

040934632

ABSTRACT:
A light-sensitive vesicular imaging element and a method of manufacture are provided, comprising a vesiculating layer which includes a binder and vesiculating agent which liberates gas upon exposure to activating radiation, and an overcoat which contains a polymer soluble in a solvent in which the binder of the vesiculating layer is substantially insoluble. Upon imagewise irradiation of the element, gas bubbles are generated in the exposed areas. The bubbles may be developed to a visible record by overall heating.

REFERENCES:
patent: 3046131 (1962-07-01), Schmidt et al.
patent: 3536490 (1970-10-01), Hochberg et al.
patent: 3759711 (1973-09-01), Rauner et al.

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