Bay Materials, LLC

Raychem Limited

Nexeon Limited

Tyco Electronics Corporation

John G Lahlouh

Ray F Stewart

Robert S Wasley

Laurence M Welsh

Paul D Hauptly

James J Toth

Klaus J Dahl

Mark F Wartenberg

Marie Kerlau

Sarah Goertzen

James P Reed

Peter L Brooks

Edward F Chu

Mauro Bonomi

Larry R Reeder

Michael Masia

Louis M Frank

Thomas W Tolles

Denis I Wales

Susan Melsa Jordan

Improved dental appliances and polymeric sheet compositions are disclosed. The polymeric sheet compositions are useful for making dental appliances having outer layers comprised of a material having a modulus of from about 1,000 MPA to 2,500 MPA ('hard') and an inner core comprised of elastomeric material or materials having a modulus of from about 50 MPa to 500 MPa (“soft”), which exhibit improved flexibility and strength, and better stain and tear resistance than currently available materials and dental appliances.

Dual shell dental appliance and material constructions

Improved separator film compositions, methods and systems for use in producing thermoformed dental appliances are disclosed.

Stand alone thermoforming separator film

Improved dental appliances and polymeric sheet compositions are disclosed. The polymeric sheet compositions are useful for making dental appliances having outer layers comprised of a material having a modulus of from about 1,000 MPA to 2,500 MPA ('hard') and an inner core comprised of elastomeric material or materials having a modulus of from about 50 MPa to 500 MPa ('soft'), which exhibit improved flexibility and strength, and better stain and tear resistance than currently available materials and dental appliances.

Provided are active materials for electrochemical cells. The active materials include silicon containing structures and treatment layers covering at least some surface of these structures. The treatment layers may include aminosilane, a poly(amine), and a poly(imine). These layers are used to increase adhesion of the structures to polymer binders within active material layers of the electrode. As such, when the silicon containing structures change their size during cycling, the bonds between the binder and the silicon containing structure structures or, more specifically, the bonds between the binder and the treatment layer are retained and cycling characteristics of the electrochemical cells are preserved. Also provided are electrochemical cells fabricated with such active materials and methods of fabricating these active materials and electrochemical cells.

Surface treated silicon containing active materials for electrochemical cells

A method of improving the mechanical properties of polymers is described. The method involves heat treating the polymer at a temperature below the glass transition temperature in a wet or in a dry environment. Polymer articles capable of moisture uptake in humid environments, as well as polymer articles less susceptible to moisture uptake, have improved mechanical properties, particularly improved stress relaxation behavior and set properties, when treated in accord with the heat treatment method.

Method of reducing stress relaxation in polymer articles and articles formed thereby

Processes and apparatus for melt extrusion of polymeric compositions, particularly conductive polymers, in which a gear pump delivers molten polymeric composition to an extrusion orifice. Overfeeding of the composition due to pressure variations is avoided by means of a polymer relief means, preferably a second, smaller gear pump, which removes a portion of the molten composition when the pressure exceeds a selected level.

Extrusion of polymers

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San Jose, CA, United States of America

John G Lahlouh