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Antistatic article, method of making the same, and display device having the same

  • US 8,449,970 B2
  • Filed: 07/23/2007
  • Issued: 05/28/2013
  • Est. Priority Date: 07/23/2007
  • Status: Active Grant
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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