3M Innovative Properties Company

Cornell University

Henry A Kostalik, Iv

Thomas P Klun

Richard John Pokorny

Douglas Scott Dunn

Gregg A Ambur

Benjamin R Coonce

Chunjie Zhang

Christopher S DeGraw

John R Jacobson

Timothy L Wong

Jo Anne Etter

Benjamin G Sonnek

Geoffrey William Coates

Laurent Froissard

Jung-Sheng Wu

Timothy James Clark

Joseph S Warner

Nicholas John Robertson

An optical assembly () including an encapsulated multilayer optical film (). Methods of making and using such optical assemblies also are disclosed.

Optical assembly with encapsulated multilayer optical film and methods of making same

An optical assembly including an optical element insert molded directly onto an optical stack is provided. The optical stack includes an optical film and may include a liner with the optical film being disposed between the optical element and the liner. The liner, if included, is removable from the optical film without substantial damage to the optical film. An outermost layer of the optical film may be diffusion bonded to a major surface of the optical element. The optical film includes a protective coating having an average thickness of no more than 30 micrometers. The protective coating includes an at least partially cured composition. The composition includes 70 to 96 weight percent of urethane (meth)acrylate compound having an average (meth)acrylate functionality of 2 to 9.5, and 2 to 20 weight percent of (meth)acrylate monomer having a (meth)acrylate functionality of 1 to 2.

Optical assembly with protective coating

An optical assembly including an optical element insert molded directly onto an optical stack is provided. The optical stack includes an optical film and may include a liner with the optical film being disposed between the optical element and the liner. The liner, if included, is removable from the optical film without substantial damage to the optical film. An outermost layer of the optical film may be diffusion bonded to a major surface of the optical element.

Optical assembly

A method of making an infrared-reflecting optically transparent assembly comprises: coating a curable composition onto a major surface of an optically transparent thermoplastic polymer film; at least partially curing the curable composition, which may be optionally at least partially dried, to provide a thermoformable composite film; and laminating the thermoformable composite film to an infrared-reflecting multilayer optical film to provide the infrared-reflecting optically transparent assembly. The curable composition comprises urethane (meth)acrylate compound, (meth)acrylate monomer, and silicone (meth)acrylate. The infrared-reflecting optically transparent assembly and methods of including it in an infrared-reflecting lens assembly are also disclosed.

Infrared-reflecting optically transparent assembly and method of making the same

Ionomers comprising ionic groups such as, for example, tetraalkylammonium groups and methods of making such ionomers. For example, the ionomers can be produced by ring opening metathesis polymerization of alkene-containing monomers with tetraalkylammonium groups and, optionally, alkene-containing monomers without tetraalkylammonium groups. The ionomers can be used in applications such as, for example, fuel cell applications.

Ionomers and methods of making same and uses thereof

Growing community of inventors

Minneapolis, MN, United States of America

Henry A Kostalik, Iv