Low molecular weight acrylic copolymer latexes for donor elements in the thermal printing of color filters
AssigneeE. I. Du Pont de Nemours and Company
InventorsJonathan Caspar, Gerald Andrews, Gregory Weed
Life of this patent
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Abstract
A donor element is described for use in a thermal imaging process. The donor element includes a support; a heating layer, and a colorant containing thermally imageable layer comprising a crosslinkable binder having a number average molecular weight of about 1,500 to about 70,000. A process for making a color filter using a thermal imaging process, and a liquid crystal display using this color filter are also described.
Claims46
A donor element comprising a thermally imageable layer, wherein the thermally imageable layer comprises a crosslinkable binder and a colorant, and wherein the crosslinkable binder has a number average molecular weight of about 1,500 to about 70,000.
A method for making a color image comprising:
- (1) imagewise exposing to laser radiation a laserable assemblage comprising:
- (A) a donor element comprising a thermally imageable layer, and
- (B) a receiver element comprising:
- (a) a receiver support;
- and
- (b) an image receiving layer provided on the surface of the receiver support;
- and wherein the thermally imageable layer comprises a crosslinkable binder having a number average molecular weight of about 1,500 to about 70,000;
- whereby the exposed areas of the thermally imageable layer are transferred to the receiver element to form a colorant-containing image on the image receiving layer;
- and
- (2) separating the donor element (A) from the receiver element (B), thereby revealing the colorant-containing image on the image receiving layer of the receiver element.
A method for making a color image comprising:
- (1) imagewise exposing to laser radiation a laserable assemblage comprising:
- (A) a donor element having a thermally imageable layer comprising a crosslinkable binder having a number average molecular weight of about 1,500 to about 70,000, and
- (C) a permanent substrate;
- whereby the exposed areas of the thermally imageable layer are transferred to the permanent substrate to form a colorant-containing image on the permanent substrate;
- and
- (2) separating the donor element (A) from the permanent substrate (C), thereby revealing the colorant-containing image on the permanent substrate.
A liquid crystal display comprising a color filter, wherein the color filter is prepared using a thermal imaging process, and a donor element comprising a thermally imageable layer having a crosslinkable binder and a colorant, wherein the crosslinkable binder has a number average molecular weight of about 1,500 to about 70,000.
Dependencies are inferred from the claim text.