Relief printing plate precursor for laser engraving, process for making relief printing plate, and relief printing plate

A relief printing plate precursor for laser engraving comprising above a support, as a crosslinked relief-forming layer:

• a thermally crosslinked layer of a resin composition for laser engraving that comprises as a Component A a compound containing either a hydrolyzable silyl group, a silanol group, or both, and that does not comprise as a Component B a binder polymer or comprises the binder polymer as a Component B at less than 2 wt % relative to the total weight of the resin composition for laser engraving on a non-volatile component basis,
• wherein the Component A has two or three groups selected from the group consisting of an alkoxy group and a hydroxy group in total on the same silicon atom, and has 2 to 6 groups in total selected from the group consisting of a hydrolyzable silyl group and a silanol group, and the minimum number of atoms connecting silicon atoms contained in Component A is at least 10.