E.i. Dupont De Nemours and Company

Sterling Diagnostic Imaging, Inc.

Gregory Charles Weed

Harvey Walter Taylor, Jr

Dietrich M Fabricius

Jonathan V Caspar

Richard Albert Coveleskie

Gerald Donald Andrews

Harry Richard Zwicker

Alan Lee Shobert

Rolf S Gabrielsen

Jeffrey Scott Meth

William K Smothers

Rolf Dessauer

Bruce M Monroe

Evan D Laganis

Jeffrey Jude Patricia

Reid E Kellogg

Ronald John Convers

Thomas Kevin Foreman

George Lalka

Steven Savini

Graciela Beatriz Blanchet Fincher

Scott Dixon McCalmont

Casey K Chandrasekaran

Jonathan V Casper

Dennis James Bellville

The present invention pertains to a donor element comprising a support layer, a transfer layer supported by the support layer, and a second layer disposed between the support layer and the transfer layer, wherein the second layer contains a binder and optionally an uncured crosslinking agent, but substantially no pigment. The binder in the second layer has a molecular weight Mthat causes the second layer to be substantially transferred with the transfer layer when the donor element is exposed to light.

Thermal transfer imaging element and method of using same

The invention provides a thermal transfer donor element comprising a support layer and a transfer layer supported by the support layer and comprising a binder containing carboxylic acid groups. The transfer layer includes an organic compound containing a plurality of hydroxyl groups with a hydroxyl group concentration of less than 18 mM/g and at least one connecting group, wherein the organic compound is free of any N,N-bis-(2-hydroxyethyl)amide and any rosin ester. In another embodiment, a method of using the donor element is provided, particularly in the manufacture of a color filter.

Thermal transfer donor element with a carboxylated binder and a hydroxylated organic compound

A planarizing element is described for use in a thermal imaging process. The planarizing element includes a support; a planarizing layer comprising a crosslinkable binder having a weight average molecular weight of about 20,000 to about 110,000.

Planarizing element for thermal printing of color filter

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.

Low molecular weight acrylic copolymer latexes for donor elements in the thermal printing of color filters

A thermally imageable element having a thermally imageable layer, wherein the thermally imageable layer has a thermal amplification additive and a stabilizer selected from the group consisting of phenolic type compounds and amine type compounds. These stabilizers present in thermally imageable layers maintain NIR stability during manufacture, and when the thermally imageable elements containing them are used in thermal imaging processes.

Thermal imaging elements having improved stability

A process for adjusting the energy of an imaging laser for element and thermally imageable elements suitable for this purpose are described. The process comprises the steps of: (a) providing an imaging unit having a non-imaging laser and an imaging laser, the non-imaging laser having a light detector which is in communication with the imaging laser, (b) contacting a receiver element with the thermally imageable element in the imaging unit, wherein the thermally imageable element comprises a light attenuated layer having a front surface and a back surface; (c) actuating the non-imaging laser to expose the thermally imageable element and the receiver element to an amount of light energy sufficient for the light detector to detect the amount of light reflected from the light attenuated layer of the thermally imageable element; and (d) actuating the imaging laser to focus the imaging laser in order to expose the thermally imageable element to an amount of light energy sufficient for imaging the thermally imageable element. The light attenuation is achieved by use of a light attenuating agent or by physically roughening a base element of the thermally imageable element.

Donor element for adjusting the focus of an imaging laser

A donor element is described for use in a thermal imaging process. The donor element includes a support: a heating layer; a colorant containing transfer layer; and an overcoat layer comprising a wax having a melting point ranging from about 30&#xb0; C. to about 350&#xb0; C. Typically the wax is a natural vegetable wax, a mineral wax or a synthetic wax.

Overcoated donor elements and their process of use

Novel photopolymer compositions are disclosed which contain dyes that absorb strongly in the near infrared (near IR) region of the electromagnetic spectrum. These dyes are useful as photosensitizers for initiating a variety of photoimaging and photopolymerization reactions. Imaging Media are disclosed herein which are sensitive in the near infrared (near IR) region of the electromagnetic spectrum and which can initiate polymerization of ethylenically unsaturated monomer components in negative-acting photopolymer systems and/or which can initiate conversion of a leuco dye to its corresponding colored dye form. These imaging media comprise either a near IR dye photochemical sensitizer, a hexaarylbiimidazole (HABI) photoinitiator, a chain transfer agent, and a photopolymerizable material or a near IR dye photochemical sensitizer, a hexaarylbiimidazole (HABI) photoinitiator, and a leuco dye. These imaging media are useful in a variety of photopolymer products, including photoresists, proofing films, and holographic recording films.

Near IR sensitive photoimageable/photopolymerizable compositions, media, and associated processes

A thermally imageable layer comprising an aqueous dispersion containing an immiscible compound, typically a near infrared absorber, and a dispersant, typically an acrylic polymer, which layer is useful in laser induced colorant transfer processes.

Aqueous dispersions for color imaging

A process for adjusting the energy of an imaging laser for imaging of a thermally imageable element and thermally imageable elements suitable for this purpose are described, which is useful for color filters and liquid crystal display devices. The process comprises the steps of: (a) providing an imaging unit having a non-imaging laser and an imaging laser, the non-imaging laser having a light detector which is in communication with the imaging laser; (b) contacting a receiver element with the thermally imageable element in the imaging unit, wherein the thermally imageable element comprises a light attenuated layer having a front surface and a back surface; (c) actuating the non-imaging laser to expose the thermally imageable element and the receiver element to an amount of light energy sufficient for the light detector to detect the amount of light reflected from the light attenuated layer of the thermally imageable element; and (d) actuating the imaging laser to focus the imaging laser in order to expose the thermally imageable element to an amount of light energy sufficient for imaging the thermally imageable element. The light attenuation is achieved by use of a light attenuating agent or by physically roughening a base element of the thermally imageable element.

Color filter

Improved processes and products for laser thermal imaging are described. These improved processes and products utlilize an image rigidification element and significantly reduce halftone dot movement, swath boundary cracking and banding.

Thermal imaging process and products using image rigidification

Improved processes and products for laser thermal imaging are described. These improved processes and products utilize an image rigidification element and significantly reduce halftone dot movement, swath boundary cracking and banding.

A peel-apart photosensitive element comprising in order: a strippable cover sheet; a photosensitive layer; an essentially non-photosensitive, non-tacky organic layer comprised of block or random polymers of at least one aromatic polymer and at least one non-aromatic monomer; and a support, wherein the photosensitive layer has a lowered peel force in relation to the cover sheet after exposure to actinic radiation.

Peel-apart photosensitive elements and their process of use

An element containing, in order: a first strippable substrate; a substantially transparent, non-photosensitive, polymeric isolation layer having a coating weight of 10 to 150 mg/dm.sup.2 ; an essentially non-photosensitive, non-tacky organic layer having a coating weight of 25 to 200 mg/dm.sup.2 ; a pigmented photosensitive, preferably photopolymerizable layer; and a second different strippable substrate adjacent the photosensitive layer, wherein the photosensitive layer upon imagewise exposure to actinic radiation exhibits a lowered peel force relative to a system which does not have a polymeric isolation layer.

Growing community of inventors

Towanda, PA, United States of America

Gregory Charles Weed