Antistatic article, method of making the same, and display device having the same
First Claim
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1. An article comprising:
- A) a substrate; and
B) an antistatic layer disposed on the substrate, the antistatic layer comprising;
a) a cationic copolymer consisting essentially of;
i) from about 20 to less than 70 wt % of a cationic monomer having the formula;
CH2═
CR1COZ(CH2)nN(R2)3XwhereinZ is O, S, or NH;
R1 is H or CH3;
R2 independently comprises an alkyl group having from 1 to 4 carbon atoms;
X is an anion selected from the group consisting of halogen, nitrate, alkylsulfate, alkanesulfonate, and haloalkanesulfonate; and
n=2 to 6; and
ii) from about 10 to about 75 wt % of a hydrophobic monomer comprising an aliphatic alkyl (meth)acrylate monomer having a hydrocarbon group of from 1 to 12 carbon atoms; and
iii) from about 2 to about 25 wt % of a crosslinkable monomer having the formula;
CH2═
CR3YwhereinR3 is H or CH3; and
Y is selected from the group consisting of CO2M, L-CO2M, L-OH, and CONH2, wherein M is H or a counterion, and L is a divalent linking group comprising alkylene, arylene, heteroalkylene, ether, carbonyl, ester, amido, or sulfonamido functionality, or a combination thereof;
b) a non-cationic (meth)acrylic polymer which comprises no monomer with —
OH or —
CO2H functional groups; and
c) a crosslinking agent selected from the group consisting of melamine-formaldehyde, urea-formaldehyde, glycoluril-formaldehyde, aziridine, carbodiimide, isocyanate, and epoxy crosslinkers.
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Abstract
An antistatic article having an antistatic layer disposed on a substrate is disclosed herein. The antistatic layer is formed from a cationic copolymer, a non-cationic (meth)acrylic polymer, and a crosslinking agent. The cationic copolymer consists essentially of a cationic monomer, a hydrophobic monomer, a crosslinkable monomer, and an optional nitrogen-containing monomer. The substrate may comprise an optical film such as a multilayer optical film. Methods for making the antistatic article and display devices containing the antistatic article are also disclosed.
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Citations
14 Claims
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1. An article comprising:
-
A) a substrate; and B) an antistatic layer disposed on the substrate, the antistatic layer comprising; a) a cationic copolymer consisting essentially of; i) from about 20 to less than 70 wt % of a cationic monomer having the formula;
CH2═
CR1COZ(CH2)nN(R2)3Xwherein Z is O, S, or NH; R1 is H or CH3; R2 independently comprises an alkyl group having from 1 to 4 carbon atoms; X is an anion selected from the group consisting of halogen, nitrate, alkylsulfate, alkanesulfonate, and haloalkanesulfonate; and n=2 to 6; and ii) from about 10 to about 75 wt % of a hydrophobic monomer comprising an aliphatic alkyl (meth)acrylate monomer having a hydrocarbon group of from 1 to 12 carbon atoms; and iii) from about 2 to about 25 wt % of a crosslinkable monomer having the formula;
CH2═
CR3Ywherein R3 is H or CH3; and Y is selected from the group consisting of CO2M, L-CO2M, L-OH, and CONH2, wherein M is H or a counterion, and L is a divalent linking group comprising alkylene, arylene, heteroalkylene, ether, carbonyl, ester, amido, or sulfonamido functionality, or a combination thereof; b) a non-cationic (meth)acrylic polymer which comprises no monomer with —
OH or —
CO2H functional groups; andc) a crosslinking agent selected from the group consisting of melamine-formaldehyde, urea-formaldehyde, glycoluril-formaldehyde, aziridine, carbodiimide, isocyanate, and epoxy crosslinkers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification