Method of preparing nano-structured surface coatings and coated articles
First Claim
1. A process for applying an antireflective coating to a substrate comprising the steps of a) applying a first coating to the substrate, said first coating being cross-linkable, b) partially cross-linking the first coating, c) providing a second coating, said second coating being cross-linkable and being carried in a solvent capable of partially swelling the first coating, d) applying the second coating and solvent to the partially cross-linked first coating, and e) cross-linking the second coating.
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Abstract
The invention relates to new processes for the preparation of antireflective coatings and coated substrates, as well as articles produced by these processes. These coatings can include one or more layers made of materials which form nano-structured and/or nano-porous surfaces. The process can include applying a cross-linkable hard coat to a substrate, partially curing or cross-linking the hard coat, and then applying a second coat carried by a solvent or mixture of solvents capable of swelling the partially cured hard coat. The second coat is then cross-linked and grafted to the hard coat to produce a durable coated substrate with antireflective properties.
96 Citations
22 Claims
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1. A process for applying an antireflective coating to a substrate comprising the steps of
a) applying a first coating to the substrate, said first coating being cross-linkable, b) partially cross-linking the first coating, c) providing a second coating, said second coating being cross-linkable and being carried in a solvent capable of partially swelling the first coating, d) applying the second coating and solvent to the partially cross-linked first coating, and e) cross-linking the second coating.
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16. A process for applying an antireflective coating to a substrate comprising the steps of
a) surface treating the substrate, b) providing a coating, said coating being cross-linkable, c) applying the coating to the surface treated substrate, and d) cross-linking the coating.
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18. An antireflective coated substrate comprising:
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a) a cross-linkable first coating, said first coating being partially cross-linked and swelled by application of solvent, b) a cross-linkable second coating on the first coating, said second coating being substantially completely cross-linked. - View Dependent Claims (19, 20, 21, 22)
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Specification