Patent ID: 6194130
Filing Date: 2001-02-27
Classification: G03C,Y10S

Abstract:
An photographic element comprising:(a) a support;(b) a silver-halide emulsion layer superposed on a side of said support; and(c) overlying the silver emulsion layer, a processing-solution-permeable protective overcoat having a laydown of at least 0.54 g/m.sup.2 (50 mg/ft.sup.2) comprising:(i) polyurethane-containing component comprising urethane polymer in the amount of 20 to 100 percent by weight of the polyurethane-containing component, and an optional vinyl polymer in the amount of 0 to 80 percent by weight of the polyurethane-containing component, wherein the polyurethane-containing component has an acid number of greater than or equal to 5; and(ii) polyvinyl alcohol having a weight average molecular weight and a degree of hydrolysis such that at least 30 percent by weight of the polyvinyl alcohol washes out during photographic processing, wherein the weight average molecular weight of the polyvinyl alcohol is less than or equal to about 150,000, with the proviso that if said molecular weight is greater than about 100,000, then the degree of hydrolysis is less than 95%.