Method for producing flexographic printing forms by thermal...

Details Method for producing flexographic printing forms by thermal... Method for producing flexographic printing forms by thermal...

2011-08-30

2011-08-30

Kelly, Cynthia H (Department: 1722)

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Making printing plates

C430S286100

Reexamination Certificate

active

08007984

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 containing a styrene/butadiene block copolymer as a mixture with a plasticizer, and the proportion of butadiene which is present in 1,2-linked form being from 15 to 50% by weight, based on the block copolymer.

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