Vinyl polymer binder for laser ablative imaging
AssigneeEastman Kodak Company
InventorsGlenn T. Pearce, Richard P. Henzel
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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 R.sup.1 and R.sup.2, as defined above, may be joined together to form a ring.
Claims20
An ablative recording element comprising a support having thereon a colorant layer comprising a colorant dispersed in a polymeric binder, said colorant layer having an infrared-absorbing material associated therewith, and wherein said polymeric binder comprises a vinyl polymer having recurring units of the following formula:
- ##STR6## 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
- R.sup.1 and R.sup.2, as defined above, may be joined together to form a ring, wherein at least one of said colorant and said infrared-absorbing material is a pigment.
A single sheet process of forming a single color, ablation image in the absence of a receiving element comprising imagewise-heating by means of a laser, an ablative recording element comprising a support having thereon 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 side of said support having thereon said colorant layer, and removing the ablated colorant to obtain said image in said ablative recording element, wherein said polymeric binder comprises a vinyl polymer having recurring units of the following formula:
- ##STR7## 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
- R.sup.1 and R.sup.2, as defined above, may be joined together to form a ring.
Dependencies are inferred from the claim text.