Double-layer infrared-sensitive imageable elements with polysiloxane toplayer

摘要

IR-sensitive imageable element comprising:
(a) a substrate with a hydrophilic surface,
b) a bottom layer,
comprising at least one photothermal conversion material and at least one polymer A soluble or swellable in an aqueous alkaline developer and insoluble in organic solvents with low polarity,
(c) a top layer,
comprising at least one polysiloxane selected from arylpolysiloxanes and arylalkylpolysiloxanes having a glass transition temperature Tg of more than 60°C and a hydroxyl content of at least 1 % by weight.