Abstract A photographic material comprising at least one silver halide emulsion layer and at least one anionic organic compound such as dyes or color couplers and as mordant therefor at least one water soluble or water dispersible cationic polyurethane which has an average molecular weight of 10,000 to 60,000 which contains repeating units, in polymerized form, which are derived from (a) an alkanediol component of which at least 80 mols % is one or more amino containing diols of the formula AND UP TO 20 MOLS % IS ONE OR MORE DIOLS OF THE FORMULA HO + R3 - OH and (b) a diisocyanate component selected from the group consisting of aliphatic, cycloaliphatic and/or aromatic diisocyanates, but at least 40 mol % must be aliphatic or cycloaliphatic and not more than 20 mols % can be cycloaliphatic; at least 40% of all the tertiary amino groups in the polyurethane being quaternized in in which formulae R1 and R3 the meanings as defined hereinafter. The mordants are photographically inert and may be used with advantages in any photographic layer.
A LIGHT-SENSITIVE PHOTOGRAPHIC MATERIAL CONTAINING AT LEAST ONE SILVER HALIDE EMULSION LAYER AND HAVING AT LEAST ONE COLLOIDAL LAYER, WHICH CONTAINS IN SAID EMULSION OR IN SAID LAYER AT LEAST ONE ANIONIC ORGANIC COMPOUND AND A BASIC MORDANT FOR SAID ANIONIC ORGANIC COMPOUND COMPRISING A POLYMER OF A WATER SOLUBLE OR WATER DISPERSABLE CATIONIC POLYURETHANE WHEREIN THE IMPROVEMENT COMPRISES THE CATIONIC POLYURETHANE IS A POLYMER HAVING AT LEAST TWO RECURRING UNITS PREPARED FROM A. AN ALKANEDIOL COMPONENT OF WHICH AT LEAST 80 MOLS % BY WEIGHT IS ONE OR MORE AMINO CONTAINING DIOLS OF THE FORMULA
Claim 2
Dependent Claim
96 words
A LIGHT-SENSITIVE PHOTOGRAPHIC MATERIAL CONTAINING AT LEAST ONE SILVER HALIDE EMULSION LAYER AND HAVING AT LEAST ONE COLLOIDAL LAYER, WHICH CONTAINS IN SAID EMULSION OR IN SAID LAYER AT LEAST ONE ANIONIC ORGANIC COMPOUND AND A BASIC MORDANT FOR SAID ANIONIC ORGANIC COMPOUND COMPRISING A POLYMER OF A WATER SOLUBLE OR WATER DISPERSABLE CATIONIC POLYURETHANE WHEREIN THE IMPROVEMENT COMPRISES THE CATIONIC POLYURETHANE IS A POLYMER HAVING AT LEAST TWO RECURRING UNITS PREPARED FROM A. AN ALKANEDIOL COMPONENT OF WHICH AT LEAST 80 MOLS % BY WEIGHT IS ONE OR MORE AMINO CONTAINING DIOLS OF THE FORMULA
Claim 3
Dependent Claim
22 words
The material as claimed in claim 1 in which 70 to 90 mols % by weight of component (b) is hexamethylene diisocyanate.
Claim 4
Dependent Claim
24 words
The material as claimed in claim 1 in which 70 to 95% by weight of the tertiary amino groups in the polyurethane are quaternized.
Claim 5
Dependent Claim
19 words
The material as claimed in claim 1 in which the polyurethane is present in a silver halide emulsion layer.
Claim 6
Dependent Claim
16 words
The material as claimed in claim 4 in which the anionic compound is a color coupler.
Claim 7
Dependent Claim
15 words
The material as claimed in claim 1 in which the anionic compound is a dyestuff.
Claim 8
Dependent Claim
23 words
The material as claimed in claim 6 in which the dyestuff is a diffusible filter dye in the absence of said basic mordant.