Photographic silver halide element containing cyclic phosphazene and salt antistatic composition
AssigneeEastman Kodak Company
InventorsJanglin Chen, Wayne T. Ferrar, Hans R. Grashof, Akemi S. Marshall
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Abstract
The present invention provides an antistatic composition comprising a binder, a cyclic phosphazene, and a salt that complexes with the cyclic phosphazene. The cyclic phosphazene has the general formula ##STR1## wherein x is 3 or 4.
Claims12
An element comprising a radiation sensitive layer comprising a silver halide emulsion and an insulating support having thereon an antistatic layer of a composition comprising a binder, not less than 1 percent of a cyclic phosphazene and an effective amount of a salt that complexes with the cyclic phosphazene to produce an antistatic layer, wherein said cyclic phosphazene may be represented as ##STR15## wherein the x is 3 or 4, R.sub.1 represents the formula --(R.sub.2 --O).sub.n --R.sub.3 wherein n is 0 to 50 and n is 2 or more in at least half of the total substituents, R.sub.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.sub.3 is alkyl, alkenyl, alkynyl, haloalkyl, haloalkenyl, haloalkynyl, phenyl, substituted aromatic, amine, or thio of from 1 to 18 carbon atoms,
- W and X each independently represents ##STR16## wherein R.sub.6, R.sub.7, and R.sub.8 each independently represents H, alkyl, alkenyl, alkynyl, haloalkyl, haloalkenyl, haloalkynyl, phenyl, substituted aromatic, amine, or thio of from 1 to 18 carbon atoms.
Dependencies are inferred from the claim text.