Water-dispersible polyester adhesives for photographic materials
AssigneeEastman Kodak Company
InventorsJohn M. Noonan, Robert C. McConkey
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AssigneeEastman Kodak Company
InventorsJohn M. Noonan, Robert C. McConkey
Estimating the term…
Disclosed herein are heat-activatable adhesive compositions containing a water-dispersible polyester which comprises A. an acid component comprising: (1) from about 8 to about 16 mole percent of units derived from at least one dicarboxylic acid having an ionic iminosulfonyl moiety containing a monovalent cation as an imino nitrogen substituent; (2) from about 40 to about 70 mole percent of units derived from at least one dicarboxylic acid selected from the group consisting of aliphatic dicarboxylic acids having the formula HOOC--(CH.sub.2).sub.n --COOH wherein n is an integer from 2 to 12, cycloaliphatic dicarboxylic acids having from 6 to 12 carbon atoms, and aromatic dicarboxylic acids having from 6 to 12 carbon atoms; (3) from about 5 to about 20 mole percent of units derived from the dicarboxylic acid having the formula ##STR1## (4) from about 5 to about 25 mole percent of units derived from at least one dicarboxylic acid having the formula ##STR2## wherein Z is carbonylimino or iminocarbonyl and m is an integer from 6 to 10; and B. a diol component consisting essentially of (1) at least 50 mole percent of units derived from at least one diol having a formula selected from the group consisting of: ##STR3## wherein p is an integer from 1 to 4, and HO--(RO).sub.q --H (II) wherein q is an integer from 2 to 4; and R is an alkylene group having from 2 to 4 carbon atoms; and (2) from 0 to 50 mole percent of units derived from at least one diol having the formula: HO--R'--OH wherein R' is an alkylene group having up to 16 carbon atoms, cycloalkylene having from 6 to 20 carbon atoms, cycloalkylenebisalkylene having from 8 to 20 carbon atoms, or arylenebisalkylene having from 8 to 20 carbon atoms with the proviso that said diol component (1), selected from the group consisting of (I) and (II), must comprise at least 90 mole percent of the diol component when said acid component (1), having an ionic iminosulfonyl moiety, comprises less than 10 mole percent of said acid component. These adhesives have been found useful in a variety of photographic materials, and particularly in image transfer film units. Their adhesive strength is further characterized as being insensitive to variations in relative humidity and, after being dried, to the presence of aqueous processing compositions.
A photographic element comprising a support having thereon at least one photographic silver halide layer and at least one layer comprising an adhesive composition comprising a water-dispersible polyester which comprises
A photographic element comprising a support having thereon at least one photographic silver halide layer and at least one layer comprising an adhesive composition comprising a water-dispersible polyester having a glass transition temperature within the range of from about 25.degree. C. to about 50.degree. C., the polyester comprising
A photographic element comprising a support having thereon at least one photographic silver halide layer and at least one layer comprising an adhesive composition comprising a water-dispersible polyester having a glass transition temperature within the range of from about 25.degree. C. to about 50.degree. C. and an inherent viscosity within the range of about 0.1 to 1.0 at 25.degree. C. in a 1:1 mixture of phenol and chlorobenzene at a concentration of 0.25 g/dl, the polyester comprising
An image transfer film unit comprising:
An image transfer film unit comprising:
An image transfer film unit comprising:
A laminated structure comprising a support bonded to a layer by an adhesive composition comprising a water-dispersible polyester which comprises
A laminated structure comprising a polyester support bonded to a polymeric layer by an adhesive composition comprising a water-dispersible polyester having a glass transition temperature within the range of from about 25.degree. C. to about 50.degree. C. and an inherent viscosity within the range of about 0.1 to 1.0 at 25.degree. C. in a 1:1 mixture of phenol and chlorobenzene at a concentration of 0.25 g/dl, the polyester comprising
In a process of producing a photographic transfer image 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, a receiving layer, a barrier layer associated with a neutralizing layer being permeable by an alkaline processing composition after a predetermined time and at least one layer comprising an adhesive composition, said process comprising:
Dependencies are inferred from the claim text.