Photographic light sensitive material

Claim 1

A silver-halide photographic light-sensitive multilayered element containing a copolymer within a photographic layer, said copolymer being prepared by copolymerizing a betaine group-containing monomer and a fluorine atom-containing monomer in at least one photographic layer, wherein the total of the betaine group-containing monomer and fluorine atom-containing monomer content is at least 50 mol. %, and wherein said betaine group-containing monomer is represented by formula (I) ##STR19## wherein A can represent an alkylene group containing from 1 to 6 carbon atoms, an arylene group containing from 7 to 11 carbon atoms, an aralkylene group containing from 8 to 12 carbon atoms, a --COOR 5 --, --CONHR 5 --, or ##STR20## group wherein R 5 is an alkylene group containing from 1 to 6 carbon atoms, and R 6 is an alkyl group containing from 1 to 8 carbon atoms, or A can form, together with ##STR21## group, a heterocyclic ring or a group containing a heterocyclic ring; R 1 is hydrogen or a lower alkyl group; R 2 and R 3 (which may be the same or different) can represent an alkyl group containing 1 to 6 carbon atoms, an aryl group containing from 7 to 11 carbon atoms, or ##STR22## can form, together with A, a heterocyclic ring or a group containing a heterocyclic ring; R 4 is hydrogen or an alkyl group containing 1 to 6 carbon atoms; a is a positive integer from 1 to 6; and B.sup.⊖ is a --COO.sup.⊖ or --SO3.sup.⊖ ; and further wherein said fluorine atom-containing monomer is represented by the formula (II) ##STR23## wherein R 7 , R 8 , R 9 , R 10 is each hydrogen, a fluorine atom; a lower alkyl group; --(CF 2 ) n --F, wherein n is an integer from 1 to 8; --O(CF 2 ) n F, wherein n is an integer from 2 to 8; --O(CF 2 ) n H, wherein n is an integer from 2 to 8; --COO(CH 2 ) n H, wherein m is an integer from 1 to 3 and n is an integer from 2 to 8; --COO(CH 2 ) m (CF 2 ) n F, wherein m is an integer from 1 to 3, and n is an integer from 2 to 8; ##STR24## wherein m is an integer from 1 to 3, and n is an integer from 2 to 8, and R 11 is an alkyl group containing from 1 to 4 carbon atoms; --COO(CH 2 ) m O--(CF 2 ) n F, wherein m is an integer from 1 to 3, and n is an integer from 2 to 8, ##STR25## wherein m is an integer from 1 to 3, and n is an integer from 2 to 8; ##STR26## wherein n is an integer from 1 to 4; --OCO--(CH 2 ) m (CF 2 ) n F, wherein m is zero or an integer from 1 to 3, and n is an integer from 1 to 8; --OCO(CH 2 ) m (CF 2 ) n H, wherein m is zero or an integer from 1 to 3, and n is an integer from 1 to 8; ##STR27## wherein R 12 , R 13 and R 14 each is a fluorine atom or a fluorine-substituted alkyl group containing 1 to 4 carbon atoms; --CONH(CF 2 ) n F, wherein n is an integer from 2 to 8; or --CONH(CF 2 ) n H, wherein n is an integer from 2 to 8; and at least one of R 7 , R 8 , R 9 and R 10 is a group containing a fluorine atom.