Use of graft copolymers for the production of laser-engravable relief printing elements
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United States of America Patent
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Sep 30, 2003
Grant Date -
Nov 22, 2001
app pub date -
Mar 23, 2001
filing date -
Mar 23, 2000
priority date (Note) -
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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.
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