High refractive index inorganic oxide nanoparticles comprising surface treatment, polymerizable resin, and articles
Assignee3M Innovative Properties Company
InventorsClinton L. Jones, Brant U. Kolb, Taun L. McKenzie, David B. Olson, Nathan K. Naismith
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Abstract
Microstructured films comprising surface modified inorganic oxide particles, surface modified inorganic nanoparticles having a high refractive index, and polymerizable resins are described.
Claims18
A microstructured film having a microstructured surface, wherein the microstructures comprise the reaction product of a polymerizable resin composition comprising an organic component and at least 10 wt. % of inorganic nanoparticles surface modified with a surface treatment comprising a compound comprising a carboxylic acid end group and a C3-C8 ester repeat unit having the general formula:
- wherein
- n averages from 1.1 to 6;
- L1 is a C1-C8 alkyl, arylalkyl, or aryl group, optionally substituted with one or more oxygen atoms or an ester group;
- L2 is a C3-C8 alkyl, arylalkyl, or aryl group, optionally substituted with one or more oxygen atoms;
- Y is
- and
- Z is an end group comprising a C2-C8 alkyl, ether, ester, alkoxy, (meth)acrylate, or combination thereof.
Dependencies are inferred from the claim text.