Method for salvaging the light-absorbing matrix and support...

Details Method for salvaging the light-absorbing matrix and support... Method for salvaging the light-absorbing matrix and support...

H - Electricity

01

J

117/21

H01J 9/22 (2006.01) H01J 9/227 (2006.01) H01J 9/50 (2006.01)

Patent

CA 1120791

RCA 72,549 METHOD FOR SALVAGING THE LIGHT-ABSORBING MATRIX AND SUPPORT OF A LUMINESCENT SCREEN Abstract In preparing a luminescent screen by depositing a light-absorbing matrix upon a support, depositing a phosphor- particle layer on the matrix and support, and then coating the phosphor-particle layer with a film of organic polymeric material, a method for salvaging the support and matrix substantially undisturbed, while substantially entirely removing the overlying material, wherein the overlying mater- ial is contacted with an alkaline aqueous solution having a pH in the range of 8.0 to 13.0 until the organic polymeric film is at least partially solubilized. Then, the overlying material is substantially entirely flushed away.

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