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US 6,638,630 B2Granted
Composition and method for a coating providing anti-reflective and anti-static properties
AssigneeChemat Technology, Inc.
InventorsSung-Soon Park, Haixing Zheng
Life of this patent
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Abstract
Coating solutions having anti-reflective and anti-static properties, a coating derived therefrom, a substrate coated with the coating and methods for their preparation. A coating includes a sol-gel alkoxide polymeric material and a conductive colloidal metal compound material.
Claims20
An apparatus comprising:
- a substrate;
- a first crystalline metal compound layer overlying the substrate comprising crystalline particles having a particle size less than one micron, the first layer having a first reflective index;
- and
- a second layer overlying the substrate and having a second reflective index different than the first reflective index.
1 more element
A method comprising:
- forming a first layer of a crystalline metal compound having a first reflective index on a surface of a substrate;
- and
- forming a second layer having a second reflective index different than the first reflective index on the substrate.
A method for preparing a coating solution comprising:
- dispersing crystalline metal compound powders having a particle size less than one micron with a dispersing agent into a colloid;
- and
- diluting the colloid.
Dependencies are inferred from the claim text.