Curable Absorbent Films

1 . A composition for preparing radiation curable substrates, the composition before curing comprising:

(vi) An acrylate monomer having the formula:

wherein R is a hydrogen; an inorganic charged ion; a linear, branched or aromatic alkyl group having a carbon chain length of less than 30 carbons, the alkyl group comprising one or more single, double or triple carbon bond(s); an acrylate group selected from acrylates (mono), di-acrylates, tri-acrylates, tetra-acrylate, pent-acrylate and hex-acrylates;

(vii) A acrylate oligomer having the formula:

wherein R 1 , R 2 or R 3 are, independently, aromatic or aliphatic organic groups having a carbon chain length of less than 50 carbons, the alkyl group comprising one or more single, double or triple carbon bond on its structure; an acrylate group \selected from acrylates (mono), di-acrylates, tri-acrylates, pent-acrylates, hex-acrylates; a C 1 -C 3 organic functional group selected from acids, alcohols, ethers, esters, ketones, thiols, amines, aldehydes and amides; a hydrogen or an inorganic charged ion;

(viii) one or more absorbent polymers;

(ix) a photo initiator; and

(x) a solvent.

2 . The composition of claim 1 wherein the acylate monomer is selected from the group consisting of acrylates (mono); di-acrylates; tri-acrylates; tetra-acrylates; hex-acrylates;

variations of these compounds and mixtures thereof.

3 . The composition of claim 2 wherein the acrylate monomer comprises one or more of acrylates (mono) and di-acrylates.

4 . The composition of claim 3 wherein the acrylate monomer is selected from the group consisting of 2-[[(butylamino)carbonyl]oxy]ethyl acrylate, di-acrylates such as tripropyleneglycol diacrylate (TPGDA) and mixtures thereof.

5 . The composition of claim 1 wherein the acrylate oligomer is selected from the group consisting of aliphatic urethane diacrylate, aromatic urethane hexaacrylate and mixtures thereof.

6 . The composition of claim 1 wherein the photo initiator is selected from the group consisting of type I photo initiators, type II photo initiators, and mixtures thereof.

7 . The composition of claim 6 wherein the type I photo initiator is selected from the group consisting of benzyl ketals, a-hydroxyalkyl phenones, a-amino alkyl phenones, and acylphospine oxides—such as Omnirad TPO-L (ethyl (2,4,6-trimethylbenzoyl)-phenylphosphinate, supplied by IGM) and/or 2-hydroxy-2-methyl-1-phenylpropan-1-one and mixtures thereof.

8 . The composition of claim 6 wherein the photo initiator type 2 is selected from the group consisting of benzophenone, thioxanthone, isopropyl thioxanthone and camphorquinone and mixtures thereof.

9 . The composition of claim 6 further comprising co-initiator selected from amines, polymeric amine synergists, thiols and mixtures thereof.

10 . The composition of claim 1 wherein the solvent is selected from organic solvents, inorganic solvents and mixtures thereof.

11 . The composition of claim 1 wherein the solvent comprises water.