Timing layer containing a mixture of cellulose acetate and...

Details Timing layer containing a mixture of cellulose acetate and... Timing layer containing a mixture of cellulose acetate and...

G - Physics

03

C

96/32

G03C 7/00 (2006.01) G03C 1/76 (2006.01) G03C 8/54 (2006.01)

Patent

CA 1072800

TIMING LAYER FOR COLOR TRANSFER ASSEMBLAGES ABSTRACT OF THE DISCLOSURE Color diffusion transfer assemblages, processes for producing transfer images in color, dye image-receiving elements and cover sheets are described wherein a novel timing layer is employed in conjunction with a neutralizing layer for neutral- izing alkaline processing composition. The novel timing layer, which is permeable by alkaline processing composition after a predetermined time, comprises a mixture of cellulose acetate and a maleic anhydride copolymer, the mixture comprising about 2 to about 20 percent by weight of the copolymer. - 1 -

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