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dc.date.accessioned2016-08-24T17:55:40Z
dc.date.available2016-08-24T17:55:40Z
dc.date.issued1994-10-18
dc.identifier.urihttp://hdl.handle.net/10919/72823
dc.description.abstractFine particles of semi-crystalline ketone-containing aromatic polymers (PEEK, PEKK, etc.) are produced by controlling the rate and conditions of hydrolysis of an amorphous polyarylketimine intermediate. The choice of acid and its concentrations affects the rate of ketimine hydrolysis and subsequent particle formation. In addition, zero or reduced amounts of agitation during hydrolysis has been found to promote the formation of smaller (submicron) sized particles which are spherical in shape, while greater amounts of agitation or shear stress applied during hydrolysis results in nonspherical, larger particles. Carbon fiber reinforced composites were made from aqueous suspensions of these particles that were dispersed or stabilized by a water soluble polymer.
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen_US
dc.publisherUnited States Patent and Trademark Office
dc.titleFine powders of ketone-containing aromatic polymers and process of manufacture
dc.typePatent
dc.identifier.urlhttp://pimg-fpiw.uspto.gov/fdd/40/570/053/0.pdf
dc.date.accessed2016-08-19
dc.type.dcmitypeText
dc.contributor.assigneeCenter for Innovative Technology
dc.contributor.assigneeVirginia Polytechnic Institute and State University
dc.contributor.assigneeVirginia Tech Intellectual Properties, Inc.
dc.contributor.inventorMcGrath, James E.
dc.contributor.inventorLyon, Keith R.
dc.contributor.inventorDavis, Richey M.
dc.contributor.inventorTexier, Anne
dc.contributor.inventorGungor, Atilla
dc.date.filed1993-02-24
dc.identifier.applicationnumber8022049
dc.subject.uspc528/490
dc.subject.uspcother528/480
dc.subject.uspcother528/491
dc.subject.cpcC08J3/12
dc.subject.cpcC08G65/4093
dc.subject.cpcC08G65/48
dc.subject.cpcC08J2365/00
dc.subject.cpcH05K1/0373
dc.type.patenttypeutility
dc.identifier.patentnumber5357040


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