Photographic element containing polyphosphazene antistatic composition

Claim 1

A photographic element comprising an electrically insulative support having thereon a radiation-sensitive silver halide emulsion layer and an antistatic layer including a polyphosphazene comprising repeating units of the formula: ##STR6## and a salt that complexes with the polyphosphazene, said polyphosphazene salt complex being present in an amount effective as a photographic antistatic agent, wherein x and y represent molar percentages, with x being 80 to 100% and y being 0 to 20%, R 1 and R 5 each independently represents the formula --(R 2 --O) n --R 3 wherein n is 1to 50, R 2 is randomly alkyl of from 2 to 4 carbon atoms, having from 2 to 4 carbon atoms in the straight chain between oxygen atoms, and R 3 is substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, or substituted or unsubstituted aryl, W, X and Y each independently represents --O--, --S--, ##STR7## Z represents --OR 9 , --SR 10 , ##STR8## wherein R 4 , R 6 , R 7 , and R 8 each independently represents H, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, or substituted or unsubstituted aryl, R 9 and R 10 each independently represents substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, or substituted or unsubstituted aryl, R 11 and R 12 each independently represents H, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, or substituted or unsubstituted aryl, R 13 is randomly alkyl of from 2 to 4 carbon atoms, having from 2 to 4 carbon atoms in the straight chain between oxygen atoms, R 14 is substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, or substituted or unsubstituted aryl, and m is 0 to 50.