Vinyl polymer binder for laser ablative imaging

Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Radiation sensitive composition or product or process of making

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43027011, 430945, 430200, 430201, 430944, 430964, 503227, 428195, 428913, 428914, G03C 516

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active

055761445

ABSTRACT:
An ablative recording element comprising a support having thereon a colorant layer comprising a colorant dispersed in a polymeric binder, the colorant layer having an infrared-absorbing material associated therewith, and wherein the polymeric binder comprises a vinyl polymer having recurring units of the following formula: ##STR1## wherein: R.sup.1 and R.sup.2 each independently represents a ketal group; an acetal group; a thioketal group; a thioacetal group; or an unsaturated group containing a double or triple bond between any two atoms, one of which is the atom of attachment to the polymer chain; or

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