Shifted photographic dyes and compositions, elements and process

Details Shifted photographic dyes and compositions, elements and process Shifted photographic dyes and compositions, elements and process

1978-10-10

1980-11-18

Louie, Jr., Won H.

Radiation imagery chemistry: process, composition, or product th

Transfer procedure between image and image layer, image...

Diffusion transfer process, element, or identified image...

430223, 430225, 430241, 430242, 430243, 430390, 430563, G03C 302, G03C 110

Patent

active

042346720

ABSTRACT:
Shifted photographic dyes which have good storage stability, yet rapidly unblock under processing conditions contain a blocked hydroxy group and a neighboring group that anchimerically assists the hydrolytic cleavage of the blocking group under processing conditions.

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patent: 3942987 (1976-03-01), Landholm et al.
patent: 3954476 (1976-05-01), Krutak et al.
patent: 4001204 (1977-01-01), Krutak et al.
patent: 4013635 (1977-03-01), Landholm et al.

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