3m Innovative Properties Company

3m Innovative Properties

Jonathan A Anim-Addo

Guy D Joly

Sergey Lamansky

Encai Hao

James P DiZio

Bryan V Hunt

Wayne Scott Mahoney

Evan L Schwartz

William A Tolbert

Steven J McMan

Saswata Chakraborty

Justin P Meyer

Paul B Armstrong

Claire Hartmann-Thompson

Samuel J Carpenter

Ghidewon Arefe

Keith L Behrman

Described herein is a dicarboxylic acid compound of formula (I): Wherein: Rcomprises an aryl group, Ris an alkylene group comprising 1 to 6 carbon atoms, n is 0 or 1, Ris H or CH, and X is S or NZ, wherein Z is H, an alkyl group comprising 1 to 4 carbon atoms or a phenyl group. Such compounds can be used to modify the surface of inorganic particles. These modified inorganic particles may then be advantageously used in polymerizable resins to increase the refractive index of the resulting composite, while enabling good flow properties of the polymerizable composition.

Dicarboxylic acid compounds, inorganic particles treated with the dicarboxylic acid compounds, and compositions thereof

A composition comprising at least one terminally-unsaturated diarylsulfide compound represented by the formula: wherein each R represents an allyl group or a propargyl group. The composition may further comprise an organic polythiol, and optionally a free-radical initiator, and may be formulated as a two-part polymerizable composition. Methods of polymerizing the compositions are also disclosed. 

Compositions and methods of making a polymerized composition

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.

Composition comprising surface modified high index nanoparticles suitable for optical coupling layer

Curable, coatable compositions include silane surface-treated inorganic nanoparticles with a high refractive index, and a curable reaction mixture. The curable reaction mixture includes a first (meth)acrylate monomer comprising a high refractive index (meth)acrylate monomer with a refractive index of 1.6 or higher, a second (meth)acrylate monomer comprising a lower refractive index (meth)acrylate monomer with a refractive index of less than 1.6, and at least one initiator. Cured optical coatings prepared from the compositions are optically clear, having a visible light transmission of at least 88% and a haze of 5% or less, and have a refractive index of at least 1.78, and are capable of passing a 10 millimeter mandrel flexibility test.

Flexible nanoparticle optical coating compositions

The present disclosure provides novel light emitting devices including AMOLED displays, based on transparent OLED architecture, where a laminated nanostructured light extraction film can produce axial and integrated optical gains as well as improved angular luminance and color. Generally, the transparent AMOLED displays () with laminated sub-micron extractors (-) include: (a) an extractor () on a transparent substrate () for light outcoupling on both sides of the transparent device (); or (b) an extractor () on a reflective film () for providing light outcoupling off the bottom side of the bottom-emitting (BE) AMOLED (); or (c) an extractor () on a light absorbing film () for providing outcoupling off the bottom side of the BE AMOLED () combined with improved ambient contrast.

Transparent OLED light extraction

Growing community of inventors

New Hope, MN, United States of America

Jonathan A Anim-Addo