Patent ID: 7083895

Claim:
An imageable element comprising: (a) a substrate comprising a support; and (b) an imageable layer over the substrate; in which: the support is aluminum or an aluminum alloy; the imageable layer comprises a polymerizable compound and a polymeric binder; the polymeric binder comprises K units and L units, and the imageable element comprises one or more adhesion promoting ingredients selected from the group consisting of: i) titanium chelates; ii) co-polymers that comprise L units and M units; and iii) mixtures thereof; the K units are selected from —[CH 2 C(R 1 )R 2 ]—, —[CH 2 CR 1 (CO 2 R 3 )]—, —[CH 2 CR 1 (CONR 3 2 )]—, —[CH(CONR 6 CO)CH]—, and mixtures thereof; the L units are —[CH 2 C(R 1 )(CO 2 (CH 2 CH 2 O) n T)]—; the M units are —[CH(R 4 )CH(CO 2 H)]—; each R 1 is independently hydrogen, methyl, or a mixture thereof; R 2 is hydrogen, methyl, phenyl, substituted phenyl, halogen, cyano, alkoxy of one to four carbon atoms, acyl of one to five carbon atoms, acyloxy of one to five carbon atoms, allyl, or a mixture thereof; R 3 is alkyl of one to six carbon atoms, phenyl, or a mixture thereof; R 4 is hydrogen, methyl, CO 2 H, CO 2 R 5 , or a mixture thereof; R 5 is an alkyl group of one to six carbon atoms or a mixture of alkyl groups of one to six carbon atoms; R 6 is hydrogen, hydroxyl, phenyl, substituted phenyl, alkyl of one to six carbon atoms, cyclohexyl, benzyl, or a mixture thereof; n is about 5 to about 400; and T is hydrogen, alkyl of one to eight carbon atoms, phenyl, or a mixture thereof, provided that when said adhesion promoting ingredient includes a titanium chelate, it is present in said imageable layer only.