Water-based coating compositions for imaging applications

Claim 2

An image receptor sheet comprising a substrate on which is coated an image-receiving layer; said image-receiving layer formed from a water-based coating composition comprising: (a) a major amount of a latex polymer having a Tg of no greater than about 30° C.; (b) a minor amount of a water-soluble low molecular weight compound or salt having reactive functional groups; and (c) a minor amount of a water-soluble carbodiimide; wherein the latex polymer comprises a terpolymer of ethylene, vinyl acetate, and vinyl chloride monomers having about 1-5 wt-% polar groups.

Claim 3

The image receptor sheet of claim 1 wherein the water-soluble low molecular weight compound or salt contains reactive functional groups selected from the group consisting of a hydroxyl group, a carboxyl group, an amino group, an amido group, and combinations thereof.

Claim 4

The image receptor sheet of claim 1 wherein the water-based coating composition further includes a water-soluble hydroxyl-containing polymer.

Claim 5

The image receptor sheet of claim 1 wherein the water-based coating composition further includes a particulate material.

Claim 6

The image receptor sheet of claim 4 wherein the particulate material comprises a combination of reactive and nonreactive particulate material.

Claim 7

An image receptor sheet comprising a substrate on which is coated an image-receiving layer; said image-receiving layer formed from a water-based coating composition comprising: (a) a major amount of a latex polymer having a Tg of no greater than about 30° C.; (b) a minor amount of a water-soluble low molecular weight compound or salt having reactive functional groups; (c) a minor amount of a water-soluble carbodiimide; (d) a water-soluble hydroxyl-containing polymer; and (e) particulate material comprising stearyl methacrylate/hexanedioldiacrylate particles.

Claim 8

An image receptor sheet comprising a substrate on which is coated an image-receiving layer; said image-receiving layer formed from a water-based coating composition comprising: (a) a major amount of a latex polymer having a Tg of no greater than about 30° C.; (b) a minor amount of a water-soluble low molecular weight compound or salt having reactive functional groups; (c) a minor amount of a water-soluble carbodiimide; (d) a water-soluble hydroxyl-containing polymer; and (e) particulate material comprising stearyl methacrylate/hexanedioldiacrylate particles.

Claim 9

The image receptor sheet of claim 6 wherein the particulate material further includes carboxy-substituted polymethylmethacrylate particles.

Claim 10

An image receptor sheet comprising a substrate on which is coated an image-receiving layer; said image-receiving layer formed from a water-based composition comprising: (a) about 80-95 wt-% of a latex polymer having a Tg of no greater than about 30° C.; (b) about 0.2-2 wt-% of a water-soluble low molecular weight compound or salt having reactive functional groups; (c) about 0.1-1 wt-% of a water-soluble carbodiimide; and (d) particulate material comprising carboxy-substituted polymethylmethacrylate beads.

Claim 11

An image receptor sheet comprising a substrate on which is coated an image-receiving layer; said image-receiving layer formed from a water-based composition comprising: (a) about 80-95 wt-% of a latex polymer having a Tg of no greater than about 30° C.; (b) about 0.2-2 wt-% of a water-soluble low molecular weight compound or salt having reactive functional groups; (c) about 0.1-1 wt-% of a water-soluble carbodiimide; and (d) particulate material comprising carboxy-substituted polymethylmethacrylate beads.

Claim 12

An image system comprising: (a) a mass transfer donor element; and (b) a receptor sheet comprising a substrate on which is coated a mass transfer image-receiving layer; said mass transfer image-receiving layer formed from a water-based coating composition comprising: (i) a major amount of a latex polymer having a Tg of no greater than about 30° C.; (ii) a minor amount of a water-soluble low molecular weight compound or salt having reactive functional groups; and (iii) a minor amount of a water-soluble carbodiimide.

Claim 13

An image system comprising: (a) a mass transfer donor element; and (b) a receptor sheet comprising a substrate on which is coated a mass transfer image-receiving layer; said mass transfer image-receiving layer formed from a water-based coating composition comprising: (i) a major amount of a latex polymer having a Tg of no greater than about 30° C.; (ii) a minor amount of a water-soluble low molecular weight compound or salt having reactive functional groups; and (iii) a minor amount of a water-soluble carbodiimide.

Claim 14

The image system of claim 9 wherein the water-based coating composition further includes a water-soluble hydroxyl-containing polymer.

Claim 15

The image system of claim 9 wherein the water-based coating composition further includes a particulate material.

Claim 16

The image system of claim 9 wherein the latex polymer is formed from ethylenically unsaturated monomers.

Claim 17

The image system of claim 9 wherein the water-based coating composition comprises: (a) about 80-95 wt-% of a latex polymer having a Tg of no greater than about 30° C.; (b) about 0.2-2 wt-% of a water-soluble low molecular weight compound or salt having reactive functional groups; and (c) about 0.1-1 wt-% of a water-soluble carbodiimide.

Claim 18

An image receptor sheet comprising a substrate on which is coated an image-receiving layer; said image-receiving layer formed from a water-based coating composition comprising: (a) a major amount of a latex polymer having a Tg of no greater than about 30° C.; (b) a minor amount of a water-soluble low molecular weight compound or salt having reactive functional groups; (c) a minor amount of a water-soluble carbodiimide; (d) a minor amount of a water-soluble hydroxyl-containing polymer; and (e) a combination of reactive and nonreactive particulate material.

Claim 19

An image receptor sheet comprising a substrate on which is coated an image-receiving layer; said image-receiving layer formed from a water-based coating composition comprising: (a) a major amount of a latex polymer having a Tg of no greater than about 30° C.; (b) a minor amount of a water-soluble low molecular weight compound or salt having reactive functional groups; (c) a minor amount of a water-soluble carbodiimide; (d) a minor amount of a water-soluble hydroxyl-containing polymer; and (e) a combination of reactive and nonreactive particulate material.

Claim 20

The image receptor sheet of claim 14 wherein the latex polymer comprises about 1-5 wt-% polar groups.

Claim 21

The image receptor sheet of claim 14 wherein the latex polymer comprises a copolymer of ethylene and monomers selected from the group consisting of vinyl acetate, vinyl chloride, and acrylic monomers that contain --OH, --COOH, --CONH 2 , --NH 2 , --COOCH 2 CH 2 OH, --SO 3 H, --p--C 6 H 4 --SO 3 H, --pyridyl, --CONR 2 , --NR 2 , or --NR 4 + (wherein R is a lower alkyl group, i.e., containing 1-3 carbon atoms) functionality.

Claim 22

The image receptor sheet of claim 14 wherein the water-soluble low molecular weight compound or salt contains reactive functional groups selected from the group consisting of a hydroxyl group, a carboxyl group, an amino group, an amido group, and combinations thereof.

Claim 23

The image receptor sheet of claim 17 wherein the water-soluble low molecular weight compound or salt comprises ethylenediaminetetraacetic acid disodium salt.

Claim 24

The image receptor sheet of claim 14 wherein the water-soluble hydroxyl-containing polymer comprises a polyvinyl alcohol.

Claim 25

The image receptor sheet of claim 14 wherein the reactive particulate material comprises carboxy-substituted polymethylmethacrylate particles.

Claim 26

The image receptor sheet of claim 20 wherein the nonreactive particulate material comprises stearyl methacrylate/hexanedioldiacrylate particles.

Claim 27

The image receptor sheet of claim 14 wherein the water-based coating composition comprises: (a) about 80-95 wt-% of the latex polymer having a Tg of no greater than about 30° C.; (b) about 0.2-2 wt-% of the water-soluble low molecular weight compound or salt having reactive functional groups; and (c) about 0.1-1 wt-% of the water-soluble carbodiimide.

Claim 28

The image receptor sheet of claim 14 wherein the substrate is a transparent polymeric sheet about 75-100 μm thick.

Claim 29

An imaging manifold comprising: (a) a receptor sheet comprising a flexible substrate having an imaging surface and a nonimaging surface, wherein an image-receiving layer is coated on the imaging surface; said image-receiving layer formed from a water-based composition comprising: (i) about 80-95 wt-% of a latex polymer having a Tg of no greater than about 30° C.; (ii) about 0.2-2 wt-% of a water-soluble low molecular weight compound or salt having reactive functional groups; (iii) about 0.1-1 wt-% of a water-soluble carbodiimide; (iv) about 0.1-3 wt-% of a water-soluble hydroxyl-containing polymer; and (v) a combination of a reactive and a nonreactive particulate material; and (b) a flexible backing sheet attached to and having one surface in contact with the nonimaging surface of the receptor sheet.

Claim 30

An imaging manifold comprising: (a) a receptor sheet comprising a flexible substrate having an imaging surface and a nonimaging surface, wherein an image-receiving layer is coated on the imaging surface; said image-receiving layer formed from a water-based composition comprising: (i) about 80-95 wt-% of a latex polymer having a Tg of no greater than about 30° C.; (ii) about 0.2-2 wt-% of a water-soluble low molecular weight compound or salt having reactive functional groups; (iii) about 0.1-1 wt-% of a water-soluble carbodiimide; (iv) about 0.1-3 wt-% of a water-soluble hydroxyl-containing polymer; and (v) a combination of a reactive and a nonreactive particulate material; and (b) a flexible backing sheet attached to and having one surface in contact with the nonimaging surface of the receptor sheet.

Claim 31

The imaging manifold of claim 24 wherein: (a) the latex polymer comprises a terpolymer of ethylene, vinyl acetate, and vinyl chloride monomers; (b) the water-soluble low molecular weight compound or salt comprises ethylenediaminetetraacetic acid disodium salt; and (c) the water-soluble hydroxyl-containing polymer comprises a polyvinyl alcohol.