3m Innovative Properties Company

James R Starkey

Audrey A Sherman

Mieczyslaw H Mazurek

Wendi J Winkler

Haiyan Zhang

Robert K Galkiewicz

Jeffrey M Olofson

William J Bryan

Moses Mekala David

Mikhail L Pekurovsky

Matthew S Stay

Karl K Stensvad

Jennifer L Trice

Charles N DeVore

John T Strand

Glen A Jerry

Ellison G Kawakami

Matthew R Smith

Electrically conductive patterns formed on a substrate are provided with a reduced visibility. A region of a major surface of the substrate is selectively roughened to form a roughened pattern on the major surface of the substrate. Electrically conductive traces are directly formed on the roughened region and are conformal with the roughened pattern on the major surface of the substrate.

Metallic microstructures with reduced-visibility and methods for producing same

A shape memory polymer article is disclosed. The article may include a surface having a microstructure and it may include a shape memory polymer. The shape memory polymer may include a copolymer network. The copolymer network may be formed from the reaction product of a free radically polymerizable siloxane having greater than one functional free radically polymerizable group and at least one (meth)acrylate monomer.

Shape memory polymer articles with a microstructured surface

Methods for changing the shape of a surface of an article are disclosed. The methods may include providing a liquid polymer precursor, casting the precursor against a first tool assembly, curing the precursor to form a shape memory polymer substrate, deforming one or more surfaces of the substrate, and mobilizing the shape memory polymer to shift the deformed surface of the substrate from a deformed shape to a pre-set shape.

Methods for changing the shape of a surface of a shape memory polymer article

A method includes placing a conductive mold in a first bath of electroforming solution, the solution including metal and having a selected temperature. A current is provided to the electroforming solution so that metal deposits onto the mold, thereby forming an electroformed element on the mold, the electroformed element and the mold being a composite assembly. The method further includes removing the composite assembly from the electroforming solution and transferring the composite assembly to a second bath having the same selected temperature. Thereafter, the electroformed element is separated from the mold while the composite assembly is in the second bath.

Dimensional control in electroforms

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Menomonie, WI, United States of America

James R Starkey