Battelle Memorial Institute

Lawrence E Bowman

John L Fulton

Clement R Yonker

Laura J Silva

Eddie G Baker

Max R Phelps

Glen C Dunham

Richard R Hallen

A method of forming complex three-dimensional microstructures wherein an external stimulus is applied to a first layer of a photosensitive material, thereby creating voids in the first layer, and any material present in those voids is removed. A sacrificial material is then provided within at least a portion of the voids. This sacrificial layer fills the voids, either in whole or in part, and enables a second layer of photosensitive material to be stacked upon the first, while still preserving the pattern formed in the first layer. Once the sacrificial layer has been applied, a second layer of photosensitive material may then be stacked onto the first. Successive layers of photosensitive material and sacrificial material may be added until a final, complex three-dimensional structure is created. The sacrificial material may then be removed with a solvent such as carbon dioxide.

Three dimensional microstructures and method of making

The present invention is a method of separating a first compound having a macromolecular structure from a mixture. The first solvent is a fluid that is a gas at standard temperature and pressure and is at a density greater than a critical density of the fluid. A macromolecular structure containing a first compound is dissolved therein as a mixture. The mixture is contacted onto a selective barrier and the first solvent passed through the selective barrier thereby retaining the first compound, followed by recovering the first compound. By using a fluid that is a gas at standard temperature and pressure at a density greater than its critical density, separation without depressurization is fast and efficient.

Method of filtering a target compound from a first solvent that is above its critical density

The invention is a method of preparing a container for recycling where the container is an inorganic substrate having an organic coating. Preparation is removing the organic coating from the inorganic substrate. The method has the steps of preparing an aqueous solution having a peroxy free-radical and applying the aqueous solution to the container and removing the organic coating.

Method for removing organic coatings from substrates

Disclosed is a method of sizing and desizing yarn, or more specifically to a method of coating yarn with size and removing size from yarn with liquid carbon dioxide solvent.

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Richland, WA, United States of America

Lawrence E Bowman