Show simple item record

dc.date.accessioned2016-08-24T17:54:19Z
dc.date.available2016-08-24T17:54:19Z
dc.date.issued2002-09-17
dc.identifier.urihttp://hdl.handle.net/10919/72456
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.
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen_US
dc.publisherUnited States Patent and Trademark Office
dc.titleWetlay process for manufacture of highly-oriented fibrous mats
dc.typePatent
dc.identifier.urlhttp://pimg-fpiw.uspto.gov/fdd/67/511/064/0.pdf
dc.date.accessed2016-08-19
dc.type.dcmitypeText
dc.contributor.assigneeVirginia Tech Foundation, Inc.
dc.contributor.inventorScheinberg, Stephen P.
dc.date.filed2000-04-26
dc.identifier.applicationnumber9558623
dc.subject.uspc162/131
dc.subject.uspcother162/141
dc.subject.uspcother162/152
dc.subject.uspcother162/156
dc.subject.uspcother162/157.1
dc.subject.uspcother162/157.2
dc.subject.uspcother162/158
dc.subject.uspcother162/164.1
dc.subject.uspcother162/164.2
dc.subject.uspcother162/202
dc.subject.uspcother162/211
dc.subject.uspcother162/212
dc.subject.uspcother162/216
dc.subject.uspcother442/100
dc.subject.uspcother442/384
dc.subject.cpcD21F9/046
dc.subject.cpcD21F9/02
dc.subject.cpcD21F11/00
dc.subject.cpcD21H13/24
dc.subject.cpcD21H13/40
dc.subject.cpcD21H13/50
dc.subject.cpcD21H21/12
dc.subject.cpcY10T442/2336
dc.subject.cpcY10T442/663
dc.type.patenttypeutility
dc.identifier.patentnumber6451167


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record