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Wetlay process for manufacture of highly-oriented fibrous mats

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dc.contributor.assigneeVirginia Tech Foundation, Inc.en
dc.contributor.inventorScheinberg, Stephen P.en
dc.date.accessed2016-08-19en
dc.date.accessioned2016-08-24T17:54:19Zen
dc.date.available2016-08-24T17:54:19Zen
dc.date.filed2000-04-26en
dc.date.issued2002-09-17en
dc.description.abstractA mat containing highly machine direction oriented (90% or greater), discontinuous reinforcement fibers, is produced on inclined wire or rotary paper making machinery. Fibers are first uniformly dispersed in an aqueous medium containing thickeners and wetting agents. In one embodiment, antifoaming agents are also added to prevent floating fibers which entangle and reduce orientation. Thermoplastic fibers or particles may also be included. Stock is brought into an open headbox in a flow pattern which allows the fibers to decelerate before approaching the porous suction belt (wire). As the fibers approach the suction belt, the fibers begin to turn and align in the streamline so as to present one end toward the suction wire. The leading ends of the fibers are gripped by the moving belt which drags the fibers out of the dispersion stock in a straight line. The porous mat produced may be dried and bonded through hot air, heat and/or pressure, or chemical binders. Stacks of such mats may be compressed partially to produce porous structures, or fully to produce impervious, rigid structural panels or shapes.en
dc.format.mimetypeapplication/pdfen
dc.identifier.applicationnumber9558623en
dc.identifier.patentnumber6451167en
dc.identifier.urihttp://hdl.handle.net/10919/72456en
dc.identifier.urlhttp://pimg-fpiw.uspto.gov/fdd/67/511/064/0.pdfen
dc.language.isoen_USen
dc.publisherUnited States Patent and Trademark Officeen
dc.subject.cpcD21F9/046en
dc.subject.cpcD21F9/02en
dc.subject.cpcD21F11/00en
dc.subject.cpcD21H13/24en
dc.subject.cpcD21H13/40en
dc.subject.cpcD21H13/50en
dc.subject.cpcD21H21/12en
dc.subject.cpcY10T442/2336en
dc.subject.cpcY10T442/663en
dc.subject.uspc162/131en
dc.subject.uspcother162/141en
dc.subject.uspcother162/152en
dc.subject.uspcother162/156en
dc.subject.uspcother162/157.1en
dc.subject.uspcother162/157.2en
dc.subject.uspcother162/158en
dc.subject.uspcother162/164.1en
dc.subject.uspcother162/164.2en
dc.subject.uspcother162/202en
dc.subject.uspcother162/211en
dc.subject.uspcother162/212en
dc.subject.uspcother162/216en
dc.subject.uspcother442/100en
dc.subject.uspcother442/384en
dc.titleWetlay process for manufacture of highly-oriented fibrous matsen
dc.typePatenten
dc.type.dcmitypeTexten
dc.type.patenttypeutilityen

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