3m Innovative Properties Company

Ming Cheng

Ying-Yuh Lu

Jun-Ying Zhang

Moses Mekala David

Timothy J Hebrink

Ta-Hua Yu

Jiaying Ma

Peter M Olofson

Andrew K Hartzell

Kalc C Vang

Babu Nana Gaddam

Kevin Michael Lewandowski

Richard John Pokorny

Mark J Pellerite

Encai Hao

Joseph D Rule

Charles L Bruzzone

Suresh Iyer

Lan Hong Liu

Robert F Kamrath

Mark F Ellis

Jung-Sheng Wu

Jianhui Xia

Michele A Craton

Quinn D Sanford

A composite having (a) a substrate that has opposing first and second surfaces, the substrate being at least 90% transmissive in visible light and has less than 5% haze, (b) a nanostructured article including a matrix and a nanoscale dispersed phase and having a random nanostructured anisotropic surface; and (c) an optically clear adhesive disposed on the second surface of the substrate.

Antireflective articles and methods of making the same

Antireflective films are described comprising a light transmissive substrate and a low refractive index layer disposed on the light transmissive substrate. The low refractive index layer comprises the reaction product of polymerizable resin composition comprising at least 20 wt-% fumed silica. In one embodiment, the polymerizable resin is ethylenically unsaturated. In a favored embodiment, the low refractive index layer increases in porosity from the light transmissive substrate interface to an opposing porous surface.

Antireflective film comprising large particle size fumed silica

A backlight suitable for use in a display device includes an illumination device having at least one light source and a back reflector stack including a reflective layer and a transparent layer having substantially uniform refractive index and having a plurality of light-directing protrusions disposed in a matrix array. The transparent layer is disposed between the reflective layer and the illumination device with the plurality of light-directing protrusions facing away from the reflective layer. The plurality of light-directing protrusions are configured and disposed in a configuration that is not registered to any light source of the illumination device.

Backlight suitable for display devices

A curable composition is provided comprising an oligomer having a plurality of pendent and/or terminal ethylenically unsaturated, free-radically polymerizable functional groups, a free-radically polymerizable crosslinking agent, and/or a diluent monomer, and a photoinitiator. The composition, when cured, is non-yellowing, exhibits low shrinkage and low birefringence making it suitable for many optical applications such as optical lenses, optical fibers, prisms, light guides, optical adhesives, and optical films.

Curable compositions for optical articles

Curable thiol-ene compositions containing urethane (meth)acrylate oligomers that are readily polymerized to produce optical articles and coatings are described.

Curable thiol-ene compositions for optical articles

A polarizing beam splitter (PBS) includes a multilayer reflective polarizing film, a pressure sensitive adhesive is disposed on the multilayer reflective polarizing film, a first rigid cover is disposed on the pressure sensitive adhesive. The PBS can be used in a variety of applications.

Polarizing beam splitter assembly adhesive

Epoxy adhesives are reported that comprise: (i) about 20% to about 40% weight of a reactive oligomer having a glass transition temperature of about &#x2212;40&#xb0; C. or less after curing and having at least two functional groups selected from epoxide, isocyanate, and amine; (ii) an amine curative; and (iii) an epoxide-group containing compound. The epoxy adhesives are resistant to thermal shock and have a low shear creep. The epoxy adhesives are particularly suitable for bonding substrates having mismatched coefficients of thermal expansion.

Epoxy adhesives and bonded substrates

Growing community of inventors

Woodbury, MN, United States of America

Ming Cheng