Use of graft copolymers for the production of laser-engravable relief printing elements
AssigneeBASF Drucksysteme GmbH
InventorsMargit Hiller, Alfred Leinenbach, Uwe Stebani, Wolfgang Wenzl
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Abstract
Graft copolymers are used for the production of laser-engravable relief printing plates, the graft copolymers being obtained by free radical polymerization of vinyl esters in the presence of polyalkylene oxides and subsequent hydrolysis of the ester function. Processes for the production of transparent flexographic printing plates by means of laser engraving using said graft copolymers are described.
Claims12
The use of graft copolymers, obtainable by free radical polymerization of vinyl esters in the presence of polyalkylene oxides and subsequent hydrolysis of at least some of the ester functions of the graft copolymers formed, for the production of laser-engravable relief printing plates.
Dependencies are inferred from the claim text.