Abstract: Lithographic substrate comprising (a) a dimensionally stable plate- or foil-shaped support, (b) an aluminum oxide layer provided on at least one side of the support (a), and (c) an interlayer applied onto the aluminum oxide layer comprising a hydrophilic polymer comprising structural units derived from the following compounds: (a1) at least one compound comprising both polyalkylene oxide chains and at least one structural unit which is free-radical polymerizable, and (a2) at least one monomer capable of copolymerizing with the free-radical polymerizable structural unit of (a1) and furthermore comprising at least one acidic functional group with pKs<5, wherein the acidic functional group can be present as a free acid group or in the form of a salt.

Abstract: Imageable elements, useful as on press developable lithographic printing plate precursors, are disclosed. The elements comprise an imageable layer over a substrate and an one or more adhesion promoting ingredients. The imageable layer comprises a polymerizable compound and a polymeric binder. The adhesion promoting ingredients are titanium chelate and/or co-polymers of a monomer having a polethylene oxide side chain with a monomer having either an acidic group or an anhydride group that has been ring opened to form an acidic group or groups.

Abstract: Substrates for lithographic printing plate precursors and lithographic printing plate precursors are disclosed. The substrates comprise an aluminum or aluminum alloy support and the a layer of interlayer material on the support. The interlayer material is a co-polymer that comprise (1) acid groups and/or phosphonic acid groups, and (2) silyl groups substituted with three alkoxy and/or phenoxy groups. The lithographic printing plate precursors additionally comprise an imageable layer over the interlayer.

Abstract: Substrates for lithographic printing plate precursors and lithographic printing plate precursors are disclosed. The substrates comprise an aluminum or aluminum alloy support and the a layer of interlayer material on the support. The interlayer material is a co-polymer that comprise (1) acid groups and/or phosphonic acid groups, and (2) silyl groups substituted with three alkoxy and/or phenoxy groups. The lithographic printing plate precursors additionally comprise an imageable layer over the interlayer.

Abstract: Imageable elements, useful as on press developable lithographic printing plate precursors, are disclosed. The elements comprise an imageable layer over a substrate and an one or more adhesion promoting ingredients. The imageable layer comprises a polymerizable compound and a polymeric binder. The adhesion promoting ingredients are titanium chelate and/or co-polymers of a monomer having a polethylene oxide side chain with a monomer having either an acidic group or an anhydride group that has been ring opened to form an acidic group or groups.