Composition comprising surface modified high index nanoparticles suitable for optical coupling layer
Assignee3M Innovative Properties Company
InventorsEncai Hao, Jonathan A. Anim-Addo, Guy D. Joly, Sergey Lamansky, James P. DiZio
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Abstract
Presently described is a method for coupling an optical film to a substrate, laminated optical constructions comprising an optical film and an optical coupling layer disposed on a surface layer of the optical film, and coating compositions useful for optical an optical coupling layer. The coating compositions comprise at least 40 wt.-% inorganic nanoparticles having a refractive index of at least 1.85 and a polymeric silane surface treatment.
Claims22
A method for coupling an optical film comprising:
- providing an optical film;
- providing a substrate;
- applying an optical coupling layer to a surface layer of the optical film, the substrate, or a combination thereof;
- wherein the optical coupling layer comprises
- at least 40 wt.-% inorganic nanoparticles having a refractive index of at least 1.85, and
- a polymeric silane surface treatment;
- and
- laminating the optical film to the substrate forming a laminated optical construction.
A laminated optical construction comprising:
- an optical film;
- an optical coupling layer disposed on a surface layer of the optical film, wherein the optical coupling layer comprises
- at least 40 wt.-% inorganic nanoparticles having a refractive index of at least 1.85;
- and
- a polymeric silane surface treatment;
- and
- a substrate bonded to the optical coupling layer at an opposing surface to the optical film.
20-23. (canceled)
A coating composition comprising:
- at least 40 wt.-% inorganic nanoparticles having a refractive index of at least 1.85;
- and
- a polymeric silane surface treatment.
25-27. (canceled)
Dependencies are inferred from the claim text.