Fiberco, Inc.

Hercules Corporation

Fibervisions L.p.

Walter J Freeman

Rakesh K Gupta

James H Harrington

Randall E Kozulla

Kunihiko Takeuchi

Shiv Sibal

Edward J Engle

Carl J Wust

Elizabeth L Fahey

Richard J Coffin

Richard J Legare

William L Sanchez

John F L Newport

Adrienne W Williams

Thomas L Smith

John F Newport

Process of producing skin-core fibers and the resulting fibers and nonwoven materials and articles wherein the fibers are composed of a polymer blend of a polyolefin and polymeric bond curve enhancing agents, such as ethylene vinyl acetate polymers.

Polypropylene fibers and items made therefrom

Process and apparatus for spinning polymer filaments permits the obtaining of skin-core filament structure by feeding a polymer composition to a spinnerette at a flow rate sufficient to obtain a spinning speed of about 10 to 200 meters per minute through the spinnerette; heating the polymer composition at a location at or adjacent to the spinnerette so as to heat the polymer composition to a sufficient temperature to obtain a skin-core filament structure upon quenching in an oxidative atmosphere; extruding the heated polymer composition through the spinnerette at a spinning speed of about 10 to 200 meters per minute to form molten filaments; and quenching the molten filaments in an oxidative atmosphere so as to effect oxidative chain scission degradation of at least a surface of the molten filaments to obtain filaments having a skin-core structure.

Melt spin system for producing skin-core high thermal bond strength

Process of making polypropylene fibers

A process for eliminating post-molding fabric curl and distortion in molded fabrics and fabrics produced thereby. The molded fabrics are laminates including a non-woven fabric face and a binder layer and/or sheet backing. Post-molding curling and distortion can be eliminated by maintaining heat on the face fabric until the backing has been cooled enough to be rigid.

Method for control of post molding fabric curl and distortion

Process of making skin-core high thermal bond strength fiber

Protective articles such as diapers, having filmless hydrophobic barrier elements such as cuffs and backing sheets. The barrier cuffs--which can be, for instance, leg cuffs and waistbands--and the backing sheets can be provided from fabrics having a fabric weight of at least 10 gsy; these fabrics are made of cardable, hydrophobic polyolefin fibers having a dpf value of not more than about 2.0.

Barrier element fabrics, barrier elements, and protective articles

Growing community of inventors

Landenberg, PA, United States of America

Walter J Freeman