Two-layer transparent electrostatic charge dissipating coating
First Claim
1. A transparent two-layer electrostatic dissipating coating comprising:
- a first layer comprising a transparent first binder polymer and a first intrinsically conducting polymer (ICP) in an amount sufficient to provide the first layer with a surface resistance of from about 103 to about 105Ω
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; and
a second layer in direct contact with the first layer and comprising a transparent second binder polymer and a second ICP in an amount sufficient to provide the second layer with a surface resistance of from about 106 to about 1010Ω
/□
,wherein the coating has a light transmission of at least about 70% at a wavelength of 600 nm.
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Abstract
A transparent two-layer electrostatic dissipating coating includes a first layer comprising a transparent first binder polymer and a first intrinsically conducting polymer (ICP) in an amount sufficient to provide the first layer with a surface resistance of from about 103 to about 105Ω/□; and a second layer in direct contact with the first layer and comprising a transparent second binder polymer and a second ICP in an amount sufficient to provide the second layer with a surface resistance of from about 106 to about 1010Ω/□, wherein the coating has a light transmission of at least about 70% at a wavelength of 600 nm. Methods of making and using the coating are also described.
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Citations
24 Claims
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1. A transparent two-layer electrostatic dissipating coating comprising:
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a first layer comprising a transparent first binder polymer and a first intrinsically conducting polymer (ICP) in an amount sufficient to provide the first layer with a surface resistance of from about 103 to about 105Ω
/□
; anda second layer in direct contact with the first layer and comprising a transparent second binder polymer and a second ICP in an amount sufficient to provide the second layer with a surface resistance of from about 106 to about 1010Ω
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,wherein the coating has a light transmission of at least about 70% at a wavelength of 600 nm. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A transparent substrate having protection against accumulation of electrostatic charge, comprising:
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a surface of the substrate, to which is adhered a coating comprising; a first layer comprising a transparent first binder polymer and a first intrinsically conducting polymer (ICP) in an amount sufficient to provide the first layer with a surface resistance of from about 103 to about 105Ω
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; anda second layer in direct contact with the first layer and comprising a transparent second binder polymer and a second ICP in an amount sufficient to provide the second layer with a surface resistance of from about 106 to about 1010Ω
/□
,wherein the coating has a light transmission of at least about 70% at a wavelength of 600 nm. - View Dependent Claims (20)
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21. A method of making a transparent two-layer electrostatic dissipating coating on a surface of a substrate comprising:
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forming on the surface a first layer comprising a transparent first binder polymer and a first intrinsically conducting polymer (ICP) in an amount sufficient to provide the first layer with a surface resistance of from about 103 to about 105Ω
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; andforming a second layer on the first layer and in direct contact with the first layer and comprising a transparent second binder polymer and a second ICP in an amount sufficient to provide the second layer with a surface resistance of from about 106 to about 1010Ω
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,wherein the coating has a light transmission of at least about 70% at a wavelength of 600 nm. - View Dependent Claims (22, 23)
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24. A method of dissipating electrostatic charge from a transparent substrate, the method comprising applying to a surface of the substrate a transparent two-layer electrostatic dissipating coating comprising:
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a first layer comprising a transparent first binder polymer and a first intrinsically conducting polymer (ICP) in an amount sufficient to provide the first layer with a surface resistance of from about 103 to about 105Ω
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; anda second layer in direct contact with the first layer and comprising a transparent second binder polymer and a second ICP in an amount sufficient to provide the second layer with a surface resistance of from about 106 to about 1010Ω
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,wherein the coating has a light transmission of at least about 70% at a wavelength of 600 nm.
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Specification