Copolymeric mordants and photographic products and processes con

Details Copolymeric mordants and photographic products and processes con Copolymeric mordants and photographic products and processes con

1984-08-17

1986-01-07

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

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

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

430238, 430941, 428500, 428522, G03C 140, G03C 554

Patent

active

045634114

ABSTRACT:
Copolymeric mordant materials containing recurring units according to the following formula are disclosed: ##STR1## In such copolymers, each of R.sup.1, R.sup.2 and R.sup.3 can independently be alkyl; substituted-alkyl; cycloalkyl; aryl; aralkyl; alkaryl; or at least two of R.sup.1, R.sup.2 and R.sup.3, together with the quaternary nitrogen atom to which they are bonded, can complete a saturated or unsaturated, substituted or unsubstituted nitrogen-containing heterocyclic ring; X is an anion; each R.sup.4 is alkyl of from 1 to 6 carbon atoms; R.sup.5 is a divalent alkylene of from 1 to 8 carbon atoms; R.sup.6 is hydrogen, amino, phenyl or alkyl of from 1 to 4 carbon atoms; R.sup.7 is hydrogen or methyl; and m is an integer 1 or 2. The molar ratio of a:b can range from about 0.1:1 to about 10:1, e.g., about 0.3:1 to about 3:1.
The copolymeric mordant materials can be utilized as image-receiving layers in photographic products and processes of the diffusion transfer type. The mordants are especially adapted to the production of dye images exhibiting favorable maximum density (D.sub.max) and rates of dye transfer properties.

REFERENCES:
patent: 3421893 (1969-01-01), Taylor
patent: 3497467 (1970-02-01), Coleman
patent: 3578637 (1971-05-01), Coleman
patent: 3607835 (1971-09-01), Paleologo et al.
patent: 3770439 (1973-11-01), Taylor
patent: 4424326 (1984-01-01), Land et al.
patent: 4463080 (1984-07-01), Snow et al.

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