STAMPABLE SHEET

WIPO Patent Application WO/2015/108021

A1

[Problem] To provide a stampable sheet able to concomitantly achieve all of high mechanical characteristics and surface appearance after molding, particularly concealment of a molded plate surface bundle, and high fluidity during molding, which could not be achieved by means of stampable sheets comprising conventional carbon fiber non-woven sheets, and provided with conditions of an optimal range for exhibiting a particularly superior appearance in a surface texturing method, which is for transferring to the molded plate surface from a metal mold surface and is one surface processing method. [Solution] The stampable sheet comprising a skin layer and a core layer is characterized in that the core layer comprises a thermoplastic resin and a carbon fiber nonwoven sheet having fiber bundles of discontinuous carbon fibers, the carbon fiber nonwoven sheet contains at least five fiber bundles (A) having a bundle width of at least 150 μm in 100 mm × 100 mm of stampable sheet, and the skin layer comprises a thermoplastic resin and a strengthened fiber nonwoven sheet having opened discontinuous strengthened fibers.

MIYOSHI KATSUHIRO (JP)
HASHIMOTO TAKAFUMI (JP)
BAMBA KENTA (JP)
NARUSE YOSHIHIRO (JP)
TOKUNAGA TAKURO (JP)

PCT/JP2015/050607

July 23, 2015

January 13, 2015

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TORAY INDUSTRIES (JP)

C08J5/04; D04H1/4242

WO2013118689A1	2013-08-15
WO2012086682A1	2012-06-28
WO2014081002A1	2014-05-30
WO2015023000A1	2015-02-19

JP2011178890A	2011-09-15
JP2005271350A	2005-10-06
US6503856B1	2003-01-07
JP5687812B1	2015-03-25
JP2011178890A	2011-09-15
JP2010235779A	2010-10-21

See also references of EP 3095807A4

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