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US 2008/0176064 A1Published application
Impression Composition for the Preparation of Precision Optics
AssigneeNanogate Advance Materials GmbH
InventorsMartin Klenke, Thomas Benthien
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Abstract
The invention relates to a molding composition which is embodied as a molding composition, a thus produced molded body as a molded body, and a method for producing said molded body comprising a surface structure.
Claims9
Solvent-free impression composition having a density within a range of from 1 to 1.5 g/ml, containing:
- a) from 50 to 65% by weight of at least one 1H,1H,2H,2H-perfluoroalkyl acrylate having a chain length of the alkyl residue of from 6 to 12 carbon atoms;
- b) from 24.9 to 45% by weight of at least one non-fluorinated acrylate;
- and
- c) from 0.1 to 5% by weight of at least one photoinitiator.
1 more element
A transparent molded part comprising a sheet-like substrate and, provided on a major surface of said substrate, a layer having a layer thickness within a range of from 3 to 300 μm and consisting of a polymerized impression composition, containing:
- a) from 50 to 65% by weight of at least one perfluorinated acrylate;
- b) from 24.9 to 45% by weight of at least one non-fluorinated acrylate;
- and
- c) from 0.1 to 5% by weight of at least one photoinitiator;
- wherein the layer has a surface structure with diffractive surface elements having a maximum structure size of defects of such surface elements of up to 100 nm on the surface facing away from the substrate.
2 more elements
Dependencies are inferred from the claim text.