Polymeric mordants
AssigneeEastman Kodak Company
InventorsGerald W. Klein, Robert A. Snow, Richard C. Sutton
Life of this patent
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Abstract
Photographic element and diffusion transfer assemblages are described which contain a novel mordant comprising recurring units having the formula ##STR1## wherein A represents recurring units derived from an .alpha.,.beta.-ethylenically unsaturated monomer; R represents hydrogen or methyl; each R.sup.1 independently represents hydrogen or an alkyl group of 1 to about 4 carbon atoms; Q represents an alkyl, substituted alkyl, cycloalkyl, aryl or substituted aryl group; X.sup..crclbar. represents an anion; w is from about 0 to about 25 mole percent; x is from about 30 to about 90 mole percent; y is from about 8 to about 65 mole percent; and z is from about 2 to about 9 mole percent.
Claims33
In a photographic element comprising a support having thereon at least one photosensitive silver halide emulsion layer having associated therewith a dye image-providing material, said support also having thereon a dye image-receiving layer comprising a mordant,
- the improvement wherein said mordant is a polymer comprising recurring units having the formula:
- ##STR40## wherein A represents recurring units derived from an .alpha.,.beta.-ethylenically unsaturated monomer;
- R represents hydrogen or methyl;
- each R.sup.1 independently represents hydrogen or an alkyl group of 1 to about 4 carbon atoms;
- Q represents an alkyl, substituted alkyl, cycloalkyl, aryl or substituted aryl group;
- X.sup..crclbar. represents an anion;
- w is from about 0 to about 25 mole percent;
- x is from about 30 to about 90 mole percent;
- y is from about 8 to about 65 mole percent;
- and
- z is from about 2 to about 9 mole percent.
In a photographic assemblage comprising:
- (a) a support having thereon at least one photosensitive silver halide emulsion layer having associated therewith a dye image-providing material;
- and
- (b) a dye image-receiving layer comprising a mordant,
- the improvement wherein said mordant is a polymer comprising recurring units having the formula:
- ##STR41## wherein A represents recurring units derived from an .alpha.,.beta.-ethylenically unsaturated monomer;
- R represents hydrogen or methyl;
- each R.sup.1 independently represents hydrogen or an alkyl group of 1 to about 4 carbon atoms;
- Q represents an alkyl, substituted alkyl, cycloalkyl, aryl or substituted aryl group;
- X.sup..crclbar. represents an anion;
- w is from about 0 to about 25 mole percent;
- x is from about 30 to about 90 mole percent;
- y is from about 8 to about 65 mole percent;
- and
- z is from about 2 to about 9 mole percent.
In an integral photographic assemblage comprising
- (a) a photosensitive element comprising a transparent support having thereon the following layers in sequence:
- a dye image-receiving layer comprising a mordant, an alkaline solution-permeable, light-reflective layer;
- an alkaline solution-permeable, opaque layer;
- a red-sensitive, direct-positive silver halide emulsion layer having a ballasted redox cyan dye-releaser associated therewith;
- a green-sensitive, direct-positive silver halide emulsion layer having a ballasted redox magenta dye-releaser associated therewith;
- and a blue-sensitive, direct-positive silver halide emulsion layer having a ballasted redox yellow dye-releaser associated therewith;
- (b) a transparent sheet superposed over said blue-sensitive silver halide emulsion layer and comprising a transparent support coated with, in sequence, a neutralizing layer and a timing layer;
- and
- (c) a rupturable container containing an alkaline processing composition and an opacifying agent, said container being so positioned during processing of said assemblage that a compressive force applied to said container will effect a discharge of the container's contents between said transparent sheet and said blue-sensitive silver halide emulsion layer;
- said assemblage containing a silver halide developing agent,
- the improvement wherein said mordant is a polymer comprising recurring units having the formula:
- ##STR42## wherein A represents recurring units derived from an .alpha.,.beta.-ethylenically unsaturated monomer;
- R represents hydrogen or methyl;
- each R.sup.1 independently represents hydrogen or an alkyl group of 1 to about 4 carbon atoms;
- Q represents an alkyl, substituted alkyl, cycloalkyl, aryl or substituted aryl group;
- X.sup..crclbar. represents an anion;
- w is from about 0 to about 25 mole percent;
- x is from about 30 to about 90 mole percent;
- y is from about 8 to about 65 mole percent;
- and
- z is from about 2 to about 9 mole percent.
In a photographic element comprising a support having thereon a dye image-receiving layer comprising a mordant,
- the improvement wherein said mordant is a polymer comprising recurring units having the formula:
- ##STR43## wherein A represents recurring units derived from an .alpha.,.beta.-ethylenically unsaturated monomer;
- R represents hydrogen or methyl;
- each R.sup.1 independently represents hydrogen or an alkyl group of 1 to about 4 carbon atoms;
- Q represents an alkyl, substituted alkyl, cycloalkyl, aryl or substituted aryl group;
- X.sup..crclbar. represents an anion;
- w is from about 0 to about 25 mole percent;
- x is from about 30 to about 90 mole percent;
- y is from about 8to about 65 mole percent;
- and
- z is from about 2 to about 9 mole percent.
A polymer comprising recurring units having the formula:
- ##STR44## wherein A represents recurring units derived from an .alpha.,.beta.-ethylenically unsaturated monomer;
- R represents hydrogen or methyl;
- each R.sup.1 independently represents hydrogen or an alkyl group of 1 to about 4 carbon atoms;
- Q represents an alkyl, substituted alkyl, cycloalkyl, aryl or substituted aryl group;
- X.sup..crclbar. represents an anion;
- w is from about 0 to about 25 mole percent;
- x is from about 30 to about 90 mole percent;
- y is from about 8 to about 65 mole percent;
- and
- z is from about 2 to about 9 mole percent.
Dependencies are inferred from the claim text.