Owens Corning Fiberglas Technology, Inc.

Owens-corning Fiberglass Technology, Inc.

Virgil G Morris

Michael T Pellegrin

James E Loftus

Randall M Haines

Patrick L Ault

Larry J Huey

Patrick M Gavin

In a method for making bicomponent polymer fibers, first and second molten polymers are supplied to a rotating spinner having an orificed peripheral wall. The molten polymers are centrifuged through the orifices as molten bicomponent polymer streams. The streams are cooled to make bicomponent polymer fibers.

Bicomponent polymer fibers made by rotary process

A method for fiberizing organic material includes rotating a spinner having a bottom wall and a peripheral wall that extends upwardly from the bottom wall and terminates in an upper end, wherein the spinner has a cavity defined by the bottom wall, the peripheral wall and a plane extending through the upper end of the peripheral wall generally parallel to the bottom wall. The method further includes creating turbulence within the spinner cavity, supplying molten organic material to a delivery tube wherein the delivery tube terminates at a point located outside of the spinner cavity, discharging molten organic material from the delivery tube with enough momentum to overcome the turbulence and reach a predetermined location in the spinner cavity, and centrifuging fibers from the molten organic material.

Method of producing organic fibers from a rotary process

In a method for producing hollow polymer fibers, molten polymer is supplied to a rotating polymer spinner having a peripheral wall. The spinner rotates so that molten polymer is centrifuged through a first tube extending through the peripheral wall of the spinner to form fibers. Gas is introduced into the interior of the molten polymer to form hollow polymer fibers. The hollow polymer fibers are then collected as a product such as a mat. The hollow polymer fibers produced by the method are microfibers having an average outside diameter of from about 2.5 microns to about 62.5 microns.

Hollow polymer fibers using rotary process

A composite sheet is made of a moldable resin and reinforcement fibers, where the resin is a thermoplastic resin, thermosetting resin or mixture thereof, and the reinforcement fibers are fibers centrifuged from a rotary process fiberizer, where the composite sheet has at least 5 distinct layers of reinforcement fibers per mm of thickness. The composite sheet has at least 10 distinct layers of reinforcement fibers, and preferably at least 30 distinct layers. At least 85 percent of the reinforcement fibers are monofilaments, and the reinforcement fibers are wool glass fibers.

Growing community of inventors

Newark, OH, United States of America

Virgil G Morris