3m Innovative Properties Company

Joseph S Warner

Thomas P Klun

Richard John Pokorny

Douglas Scott Dunn

Gregg A Ambur

Laurent Froissard

Satinder K Nayar

David M Castiglione

Donald L Pochardt

Dennis Earl Ferguson

Peter T Benson

Benjamin R Coonce

Stanley Rendon

Michael J Svendsen

Chunjie Zhang

Timothy J Rowell

Henry A Kostalik, Iv

Christopher S DeGraw

Ramnath Subramaniam

An optical assembly () including an encapsulated multilayer optical film (). Methods of making and using such optical assemblies also are disclosed.

Optical assembly with encapsulated multilayer optical film and methods of making same

A dual-molded silicone-polyamide composite article including a first molded piece that comprises a blend of polyamide and an ethylene-vinyl alcohol copolymer and a second molded piece that comprises a thermoset, hydrosilylation-cure silicone polymer. A portion of a surface of the second molded piece is autogenously bonded to a portion of a surface of the first molded piece.

Dual-molded polyamide-silicone composite article and methods of making

An ultrasonic-assisted injection molding system and method for making precisely-shaped articles. A source of ultrasonic energy is positioned to apply vibrational energy to a mold cavity connected to at least one gate in flow communication with a source of molten (co)polymer. The mold is heated to a temperature of 104-116&#xb0; C., and the molten (co)polymer is injected into the mold cavity. After cooling the mold until the molten (co)polymer within the gate has solidified, ultrasonic energy is applied to the mold without remelting the solidified (co)polymer within the gate until the temperature increases to 116-122&#xb0; C., thereby substantially relieving flow induced stresses. The mold is then cooled until the temperature decreases to 101-107&#xb0; C., and is thereafter heated until the temperature increases to 116-122&#xb0; C., thereby substantially relieving any thermally induced stresses. The mold is cooled until the molten (co)polymer has solidified, thereby forming a precision molded plastic optical element.

Ultrasonic-assisted molding of precisely-shaped articles and methods

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Hudson, WI, United States of America

Joseph S Warner