General Electric Company

William C Paul

Ronald F Sieloff

Gloria Sieloff

Kirk L Kimbel

Robert Allan Bourne

Thermoformable multi-layer sheet products are manufactured by pressure laminating one or more molten polymeric films and superposed layers of glass cloth material such that the molten polymer impregnates the glass cloth layers.

Multi-layer thermoformable laminates and methods of their manufacture

An applicator for coating sheet material has a relatively thick compressible, saturable layer for engaging the sheet which is effective to apply an optically clear coating when saturated with a flood of liquid coating composition. The coated article has virtually no visible defects and has high optical transmission and low haze.

Method and apparatus for coating corrugated sheet material

Apparatus for coating corrugated sheet material

An apparatus and method for controlling in a variably controllable fashion the width of an extruder die opening whereby the width of material being extruded may be controllably varied.

Variable width die and method for extruding sheet products

A method for continuously producing corrugated sheet from a supply of material having low melt strength at the forming temperature includes a heater, a pair of interdigitated thermo-forming rollers for corrugating the sheet as it exits the heater and a closely coupled calibrator at the outlet end of the thermo-forming rollers. A carrier maintains lateral tension on the sheet as it is heated, thermo-formed and calibrated so as to maintain its uniform lateral width. The thermo-forming rollers and calibrator form and maintain the corrugations until the material cools to below the glass transition temperature. A method for producing the corrugations is likewise disclosed.

Method for corrugating sheet material

A novel extrusion method and apparatus are disclosed for varying the width of an extruded article which employs the use of thermal pins in the extruder die body and does not involve the use of any mechanical manipulation of the die configuration.

Variable width film die

A multilayer structure which comprises a layer comprising a polybutylene terephthalate adjacent to a layer comprising an aromatic polyester selected from the group consisting of aromatic polycarbonate, copolyestercarbonate, polyarylate, or mixtures thereof.

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Mt. Vernon, IN, United States of America

William C Paul