Lithographic printing plate precursor
AssigneeFuji Photo Film Co., Ltd.
InventorsTatsuji Higashi, Kazuhiro Fujimaki
Life of this patent
Estimating the term…
Abstract
A lithographic printing plate precursor is disclosed, comprising an aluminum support having thereon a photopolymerizable photosensitive layer which contains (1) an alkali-soluble urethane binder having at least one ethylenically unsaturated polymerizable group on the side chain thereof, (2) an addition polymerizable compound having an ethylenically unsaturated double bond, and (3) a photopolymerization initiator.
Claims7
A lithographic printing plate precursor comprising an aluminum support having thereon a photopolymerizable photosensitive layer which contains (1) an alkali-soluble urethane binder having at least one ethylenically unsaturated polymerizable group on the side chain thereof wherein said urethane binder is a reaction product between (A) an ethylenically unsaturated group-containing diisocyanate compound obtained by allowing (A1) a compound having three or more isocyanate groups per molecule and (A2) an ethylenically unsaturated compound having an active hydrogen atom to react and (B) a diol compound having an alkali-soluble group, (2) an addition polymerizable compound having an ethylenically unsaturated double bond, and (3) a photopolymerization initiator.
Dependencies are inferred from the claim text.