3M Innovative Properties Company

Minnesota Mining and Manufacturing Company

Taun L McKenzie

Brant Ulrick Kolb

Allen L Griggs

David B Olson

Clinton L Jones

Mark J Hendrickson

Nathan K Naismith

Ramesh C Kumar

Ying-Yuh Lu

Christopher Bland Walker, Jr

Anthony M Renstrom

Robert Stephen Davidson

Danny B Anderson

James J Leach

Richard M Bymark

Frank Y Xu

Richard John Pokorny

Kyle J Lindstrom

Encai Hao

Wayne Scott Mahoney

Rolf W Biernath

Michael A Kropp

Marc Dudley Radcliffe

Robert A Yapel

Tri Dinh Pham

Wendy L Thompson

Lan Hong Liu

Emily S Goenner

Michael D Crandall

Rajdeep S Kalgutkar

David T Amos

Robert F Kamrath

Steven H Kong

Mitchell A F Johnson

Michelle Lund Toy

Peter M Olofson

Nathaniel K Naismith

Joseph T Aronson

James S McHattie

Michael K Gerlach

Christopher P Tebow

Theresa M Watschke

The present invention concerns antireflective films comprising a high refractive index layer () and low refractive index layer () disposed on the high refractive index layer. The antireflective films have a microstructured surface () that can be derived from a microreplicated tool.

Antireflective films comprising microstructured surface

Orthodontic adhesives are claimed which use polymeric filler particles with defined particle size characteristics. The particle size characteristics are controlled such that these adhesives provide comparable mechanical retention and cohesive strength of conventional orthodontic adhesives when used to bond orthodontic appliances to teeth. Because polymeric fillers are generally softer than inorganic fillers, these adhesives are easier to remove from the tooth than conventional adhesives after debonding an orthodontic appliance. Embodiments of the invention include both self-curing and two-part adhesives, packaged adhesive-coated orthodontic appliances, and methods for removing a cured adhesive from a tooth surface.

Orthodontic composition with polymeric fillers

Microstructured films comprising surface modified inorganic oxide particles and polymerizable resins are described.

High refractive index inorganic oxide nanoparticles comprising surface treatment and polymerizable resin

A method of preparing zirconia-containing nanoparticles and a method of preparing a composite material that includes the zirconia-containing nanoparticles are provided. A method of treating a zirconium carboxylate salt solution to remove alkali metal ions and alkaline earth ions is provided. The treated solution can be used as a feedstock to prepare the zirconia-containing nanoparticles. Additionally, a continuous hydrothermal reactor system is provided that can be used, for example, to prepare the zirconia-containing nanoparticles.

Method of making zirconia-containing nanoparticles

Inorganic nanoparticles having a refractive index of at least 1.60 wherein the nanoparticles are surface modified with a surface treatment comprising a compound comprising a carboxylic acid end group and a C-Cester repeat unit.

Microstructured films such as brightness enhancing films, polymerizable resin compositions comprising an organic component and surface modified nanoparticles, and surface modified nanoparticles are described. The microstructured film has a polymerized structure comprising the reaction product of the polymerizable resin composition (e.g. having a refractive index of at least 1.58). The cured nanocomposite (e.g. structure) can exhibit improved crack resistance. In some embodiments, the flexibility is expressed in terms of a cylindrical mandrel bend test property (e.g. a mandrel size to failure of less than 6 mm or a mandrel size to failure according to the equation D=1000(T/0.025&#x2212;T) wherein T is the thickness in millimeters of a (e.g. preformed base layer). In other embodiments, the flexibility is expressed in terms of a tensile and elongation property (e.g. a tensile strength at break of at least 25 MPa and an elongation at break of at least 1.75%).

Brightness enhancing film comprising nanocomposite structure having improved crack resistance

A copolymer comprises the reaction product of (a) (meth)acrylate functionalized nanoparticles, (b) vinyl monomer, and (c) mercapto-functional silicone. The (meth)acrylate functionalize nanoparticles are selected from the group consisting of silica nanoparticles, zirconia nanoparticles, titania nanoparticles, and combinations thereof.

Copolymers of nanoparticles, vinyl monomers and silicone

A copolymer comprises the reaction product of (a) (meth)acrylate functionalized nanoparticles, (b) vinyl monomer, and (c) silicone macromer. The (meth)acrylate functionalize nanoparticles are selected from the group consisting of silica nanoparticles, zirconia nanoparticles, titania nanoparticles, and combinations thereof.

Antireflective films comprising a flexible high refractive index layer that comprises at least 60 wt-% of inorganic nanoparticles, the nanoparticles having a refractive index of at least 1.60, dispersed in a crosslinked organic material. Also described are surface treated nanoparticles.

Flexible high refractive index hardcoat

Microstructured films comprising surface modified inorganic oxide particles, surface modified inorganic nanoparticles having a high refractive index, and polymerizable resins are described.

High refractive index inorganic oxide nanoparticles comprising surface treatment, polymerizable resin, and articles

Presently described are (e.g. brightness enhancing film) optical articles comprising the reaction product of a polymerizable resin and surface modified inorganic nanoparticles, methods of surface modifying inorganic nanoparticles, and surface modified inorganic nanoparticles. The surface treatment comprises at least one monocarboxylic acid having a refractive index of at least 1.50 and/or at least one monocarboxylic acid having a Mn of at least 200 g/mole and an ethylenically unsaturated group and/or at least one dicarboxylic acid.

Brightness enhancing film and methods of surface treating inorganic nanoparticles

A thermomechanical-shock-resistant cured composition for solventless, hydrophobic resin encapsulation of electronic components having a glass transition temperature below 0&deg; C. and containing a non-silicone oligomer including a flexible hydrocarbon backbone with reactive functionality, up to about 40% by weight of an adhesion promoter, and a optional viscosity-modifying component.

Encapsulant compositions with thermal shock resistance

The present invention provides a novel method for preparing a novel latent curing agent composition suitable for curing epoxy resin compositions. The present invention also provides the novel latent curing agent compositions.

Latent curing agent compositions and a method of making

The present invention provides a novel method for preparing a novel curing agent composition suitable for curing epoxy resin compositions. The present invention also provides the novel curing agent compositions.

Curing agent compositions and a method of making

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Hugo, MN, United States of America

Taun L McKenzie