Copolymeric mordants and photographic products and processes...

Details Copolymeric mordants and photographic products and processes... Copolymeric mordants and photographic products and processes...

C - Chemistry, Metallurgy

08

F

96/32, 260/245.3

C08F 226/06 (2006.01) G03C 8/56 (2006.01)

Patent

CA 1154446

ABSTRACT OF THE DISCLOSURE Copolymeric mordant materials containing recurring units according to the following formula are disclosed: Image In such copolymers, each of R1, R2 and R3 can independently be alkyl; substituted alkyl cycloalkyl; aryl aralkyl; alkaryl; or at least two of R1, R2 and R3, together with the quaternary nitrogen atom to which they are bonded, can complete a saturated or unsaturated, substituted or unsubstituted nitrogen- containing heterocyclic ring; and X is an anion. 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 and in photographic products and processes of the diffusion transfer type. The mordants are especially adapted to the production of dye images free of objectionable haze, yellowing or related image defects.

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