E.i. Dupont De Nemours and Company

Other

Massachusetts Institute of Technology

Richard K Okine

David H Edison

Herbert G Lauterbach

James R Layton

Thomas E Armiger

Mark W Hopkins

Archie R Bice

Floyd H Fish, Jr

Albert S Tam

Dennis A Nollen

Timothy G Gutowski

Michael J Effing

Michael F Sentovich

Albertus P Walrave

A thermoplastic composite sheet is used as a tool or tool liner for thermoforming thermoplastic composite sheets into parts having uneven sections. A more uniform consolidation of the part is achieved that has not been previously attainable in open mold processing at high forming temperatures.

Process of making a consolidated part

A panel having a honeycomb core and thermoplastic resin facings with adhered decorative polyvinyl fluoride overlayer is shaped in a press after being preheated to the softening temperature of the resin and the placing of the heated thermoplastic resin facing in registry with the overlayer which is preheated, thus pressing the two together in the press.

Method for forming a structural panel with decorative facing and product

A new method of forming composites or laminates into complex shapes has been developed. A process using a die with piercing studs allows control of fibers motion during processing, leading to better composite parts.

Method of producing a composite article

A stretch broken fiber reinforced resin tow is formed from resin reinforced with continuous filaments by tensioning the tow while heating it to a temperature sufficient to soften the resin in the tensioning zone to break all of the filaments in a random manner.

Process for making composites of stretch broken aligned fibers and

A stretch broken fiber reinforced resin tow is formed from resin reinforced with continuous filaments by tensioning the two while heating it to a temperature sufficient to soften the resin in the tensioning zone to break all of the filaments in a random manner.

Process for making composites of stretch broken aligned fibers

A coating of a viscous lubricant applied prior to stretch-breaking permits forming slivers of stretch-broken carbon fibers. When an anti-static ingredient is added to the viscous lubricant cohesive slivers of stretch-broken glass fibers can be formed. Composites of matrix resin reinforced with these slivers exhibit high strength, tensile stiffness, and good formability.

Composites of stretch broken aligned fibers of carbon and glass

Comosites of stretch broken aligned fibers of carbon and glass

A coating of a viscous lubricant applied prior to stretch-breaking permits forming slivers of stretch-broken carbon fibers. When an anti-static ingredient is added to the viscous lubricant cohesive slivers of stretch-broken glass fibers can be formed. composites of matrix resin reinforced with these slivers exhibit high strength, tensile stiffness, and good formability.

Growing community of inventors

Wilmington, DE, United States of America

Richard K Okine