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US 5,468,591 AGranted
Barrier layer for laser ablative imaging
AssigneeEastman Kodak Company
InventorsGlenn T. Pearce, Richard P. Henzel
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AssigneeEastman Kodak Company
InventorsGlenn T. Pearce, Richard P. Henzel
Estimating the term…
An ablative recording element comprising a support having thereon, in order, a barrier layer and a colorant layer comprising a colorant dispersed in a polymeric binder, the colorant layer having an infrared-absorbing material associated therewith, and wherein the barrier layer comprises a vinyl polymer having recurring units of the following formula: ##STR1## wherein R.sup.1 and R.sup.2 each independently represents a halogen atom; a haloalkyl group with at least one halogen atom in its .beta.-position of the carbon to which R.sup.1 or R.sup.2 is attached; a ketal group; an acetal group; a thioketal group; a thioacetal group; a substituted or unsubstituted alkyl group; or a group containing a double or triple bond between any two atoms, one of which is adjacent to the carbon to which R.sup.1 or R.sup.2 is attached; with the proviso that at least one of R.sup.1 and R.sup.2 represents a group containing a double or triple bond between any two atoms, one of which is adjacent to the carbon to which R.sup.1 or R.sup.2 is attached; or R.sup.1 and R.sup.2 may be joined together to form a ring.
An ablative recording element comprising a support having thereon, in order, a barrier layer and a colorant layer comprising a colorant dispersed in a polymeric binder, said colorant layer having an infrared-absorbing material associated therewith, and wherein said barrier layer comprises a hydrophobic vinyl polymer having recurring units of the following formula:
A process of forming a single color, ablation image having an improved Dmin comprising imagewise heating by means of a laser, an ablative recording element comprising a support having thereon, in order, a barrier layer and a colorant layer comprising a colorant dispersed in a polymeric binder, said colorant layer having an infrared-absorbing material associated therewith, said laser exposure taking place through the colorant side of said element, and removing the ablated colorant to obtain said image in said ablative recording element, wherein said barrier layer comprises a hydrophobic vinyl polymer having recurring units of the following formula:
Dependencies are inferred from the claim text.