Production of flexographic printing plates by thermal...

Details Production of flexographic printing plates by thermal... Production of flexographic printing plates by thermal...

2005-01-18

2005-01-18

Hamilton, Cynthia (Department: 1752)

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Making printing plates

C430S270100, C430S281100, C430S309000, C430S945000, C430S944000

Reexamination Certificate

active

06844142

ABSTRACT:
Flexographic printing plates are produced by thermal development by a process in which an imagewise exposed flexographic printing element is developed by heating and removing the softened, unpolymerized parts of the relief-forming layer, the flexographic printing element used comprising an olefin/(meth)acrylate copolymer having an olefin content of from 50 to 94 mol %. The photopolymerizable flexographic printing element comprises an olefin/(meth)acrylate copolymer having a content of from 50 to 94 mol % of olefin monomers, from 6 to 50 mol % of (meth)acrylate monomers and from 0 to 5 mol % of further comonomers. This flexographic printing element is used for the production of flexographic printing plates both by thermal development and by development by means of washout compositions.

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Beher, Arno “Olefins 2.” first page only, from Ullmann's Encyclopedia of Indusrial Chemistry, Article online posting date Jun. 1, 2000.

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