3m Innovative Properties Company

Minnesota Mining and Manufacturing Company

Robert Stephen Davidson

Danny B Anderson

Brant Ulrick Kolb

Mark J Hendrickson

James Alan Higgins

John T Brady

Huang Chin Hung

David Scott Thompson

David R Holm

Taun L McKenzie

Anthony Robert Maistrovich

Chien-Chih Chiang

James J Leach

Audrey A Sherman

James M Nelson

Jeffrey Jacob Cernohous

Allen Raymond Siedle

Cristin E Moran

Mark David Gehlsen

Lijun Zu

D Scott Thompson

Craig E Hamer

Michael John Annen

Jeffrey H Tokie

Katherine A Brown

Daniel T Chen

Daniel M Lentz

James Robert McNerney

Robert Wade Ferguson

Joseph W Woody

Thomas Martin Lynch

Eugene E Harkins

Barry Eugene Heldman

Timothy J Diekmann

Robert W Ferguson

Brook F Duerr

David A Berry

Richard A Gerth

A display panel assembly is made by optically bonding a display panel and a substantially transparent substrate. Optical bonding is carried out by forming a silicon-containing optical bonding layer having regions of different physical properties

Display panel assembly and methods of making same

Metalized web substrate is wet etched in a reaction vessel by contacting with oxidizing and metal complexing agent to remove metal from unpatterned region. Following etching, substrate is rinsed, and rinse is at least partly recycled. Concentrations of oxidizing and metal complexing agents in the etchant bath are maintained by delivering replenishment feeds of each. Concentration of metal in the etchant bath is maintained by discharging some of the etchant bath. Replenishment rates of oxidizing and metal complexing agents and etchant removal rate are determined based at least in part on rate that metal etched from the substrate enters the etchant bath.

Methods of continuously wet etching a patterned substrate

Disclosed herein are LED devices having lenses and methods of making the devices. The LED devices are made using an optical layer comprising a plurality of lens features. The optical layer is disposed relative to the LED die such that at least one LED die is optically coupled to at least one lens feature. A lens can then be made from the lens feature and excess optical layer removed to provide the device.

LED devices having lenses and methods of making same

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

Zirconia particles, methods of making zirconia particles, composite materials that contain the zirconia particles, methods of making the composite materials, and zirconia sols that contain the zirconia particles are described. The zirconia particles are substantially non-associated and have an average size no greater than 50 nanometers and may contain yttrium. The zirconia particles are prepared by a method that includes two separate hydrothermal treatments.

Zirconia particles

A system is provided wherein a plug flow reactor is used to make combinatorial libraries of materials. Examples of plug flow reactors include stirred tube reactors, extruders, and static mixers.

Continuous process for the production of combinatorial libraries of materials

A process for evaporating a portion of a colloidal solution, said process including: a) passing a colloidal solution, said colloidal solution including particles in a liquid medium, wherein at least a portion of said liquid medium includes at least one volatile component, through one or more orifices into an evaporation zone that has at least one inner surface, wherein said colloidal solution does not substantially contact said at least one inner surface of said evaporation zone as said colloidal solution is passed through said evaporation zone; b) applying pressure in said evaporation zone that is lower than the vapor pressure of said colloidal solution as it is passed into said evaporation zone, allowing for flash evaporation of at least a portion of said at least one volatile component from said colloidal solution; c) adjusting the pressure in said evaporation zone to evaporate an amount of said at least one volatile component from said colloidal solution; and d) collecting the remaining colloidal solution from said evaporation zone.

Continuous process for controlled concentration of colloidal solutions

A continuous, preferably counter-current, extraction process that can be used to significantly reduce the concentrations of residual monomers, residual catalyst, undesired solvents, and other impurities in polymer compositions. The invention is particularly beneficial for extracting residual monomers and other impurities from viscous, sticky polymer solutions, such as solutions of PSAs and low cohesive strength polymer compositions that phase change during extraction (i.e., change from liquid to solid, or precipitate), in a continuous manner. The polymer composition can be extruded into an extraction solvent as fibers in a vertical extraction column, under conditions such that at least a portion of an impurity is extracted from the polymer into the extraction solvent.

Process for removing impurities from polymers

Process for the packaged polymerization of olefinic monomers

Described herein is a continuous process for polymerizing 1-alkenes. In this process, which operates free of any hydrogen control feed, the resultant polymer has an inherent viscosity that is closely centered around a predetermined targeted value. If desired, the targeted value can be changed while the process is being performed. The process is carried out in a reactor that allows for essentially plug flow of material passing therethrough. Additionally, the temperature profile of the reactor is controllable.

Continuous process for the production of poly(1-alkenes)

Growing community of inventors

Bloomington, MN, United States of America

Robert Stephen Davidson