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AssigneeCorning Incorporated
InventorsJerome Vivien Davidovits, Bruno Dufour, David Henry
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A polarizing dye dispersion, a light-polarizing article and a process for making light-polarizing article utilizing the polarizing dye dispersion. The aqueous polarizing dye dispersion comprises, in addition to a polarizing dye material, a non-ionic surfactant material comprising a plurality of surfactant molecules represented by the following general formula (I): wherein: the average of the number n of all the surfactant molecules ranges from 9 to 200; m is 1 or 2; R, identical or different for each surfactant molecule and each occurrence, independently is an alkyl; at least one R on each surfactant molecule is a C6-C12 straight-chain or branched alkyl; and X, identical or different for each surfactant molecule, independently is an H or a C1-C4 alkyl.
1-23. (canceled)
An aqueous polarizing dye dispersion comprising a plurality of polarizing dye molecules and a non-ionic surfactant material comprising a plurality of surfactant molecules represented by the following general formula (I):
The dispersion according to claim 1, wherein the concentration of the non-ionic surfactant ranges from 0.1% to 10% by weight of the total weight of the dispersion.
The dispersion according to claim 1, wherein the surfactant molecules comprise the following two groups (A) and (B) of surfactant molecules:
The dispersion according to claim 3, wherein the ratio MA/MB ranges from 1/10 to 10/1.
The dispersion according to claim 3, wherein the ratio MA/MB ranges from 1/10 to 1/5.
The dispersion according to claim 3, wherein the surfactant molecules in Group (A) have a polydispersity index that ranges from 1 to 2;
The dispersion according to claim 3, wherein the average molecular weight of all of the non-ionic surfactant molecules is from 620 to 10,000 g·mol−1.
The dispersion according to claim 1, wherein each of the polarizing dye molecules comprises an anion group on the molecular structure thereof.
A process for making a light-polarizing article, the process comprising the steps of:
The process according to claim 9, wherein:
The process according to claim 9, further comprising the following step (F):
The process according to claim 11, further comprising the following step (E) between steps (D) and (F):
The process according to claim 12, wherein step (E) comprises forming a first coupling layer comprising a molecular structure, the molecular structure including ionic groups having charges opposite to the polarizing dye molecule or groups capable of forming ions having charges opposite to the polarizing dye molecules of the light-polarizing layer.
The process according to claim 12, wherein the light-polarizing dye molecules in step (E) comprise an anionic group coupled to the molecular structure of each of the light polarizing molecules.
The process according to claim 9, wherein the non-ionic surfactant material comprises a plurality of surfactant molecules represented by the following general formula (I):
A light-polarizing article comprising a substrate having a surface, a first functional layer comprising a plurality of aligned polarizing dye molecules over at least part of the surface, wherein the first functional layer further comprises a non-ionic surfactant material comprising a plurality of surfactant molecules represented by the following general formula (I):
The light-polarizing article according to claim 16, wherein the surfactant molecules comprise the following two groups (A) and (B):
The light-polarizing article according to claim 17, wherein the ratio MA/MB ranges from 1/10 to 10/1, advantageously from 1/10 to 1/5.
The light-polarizing article according to claim 17, wherein in the surfactant molecules in Group (A) have a polydispersity index that ranges from 1 to 2, and the surfactant molecules in Group (B) have a polydispersity index that ranges from 1 to 2.
The light-polarizing article according to claim 16, wherein each of the polarizing dye molecules comprises an anion group on the molecular structure thereof.
The light-polarizing article according to claim 16, further comprising a second functional layer over the first functional layer, and a first coupling layer between the first functional layer and the second functional layer.
The light-polarizing article according to claim 21, wherein each of the polarizing dye molecules in the first functional layer includes an anion group, and wherein the molecular structure of the first coupling layer includes groups having charges opposite to the polarizing dye molecules or groups capable of forming ions having charges opposite to the polarizing dye molecules of the first functional layer.
The light-polarizing article according to claim 16, wherein the first functional layer is formed on a plurality of micro-grooves on at least part of the surface of the substrate.
The light-polarizing article according to claim 16, wherein the first functional layer further comprises a polymer that immobilizes the light-polarizing dyes.
Dependencies are inferred from the claim text.