METHOD FOR CONNECTING REINFORCING FIBER BUNDLE, METHOD FOR PRODUCING LONG FIBER REINFORCED THERMOPLASTIC RESIN PELLET, AND WOUND BODY

WIPO Patent Application WO/2011/055800

A1

A method for connecting a tail end portion of a reinforcing fiber bundle of a preceding wound body to a front end portion of a reinforcing fiber bundle unwound from a new wound body by blowing pressurized air to both of the ends to unravel and entwine both of the reinforcing fiber bundles, wherein the method comprises a preparation step for adjusting the amount of a sizing agent contained in the front end of the reinforcement fiber bundle unwound from the new wound body and the tail end of the preceding wound body to 0-4wt% inclusive, and the reinforcement fiber bundles are connected after the preparation step. It is thus possible for the reinforcing fiber bundle at the time of producing a long fiber reinforced thermoplastic resin pellet that is a material for the pellet to have a required connection strength, and to avoid the occurrence of interruption due to breakage, and accordingly allowing improvement in the production efficiency of the long fiber reinforced thermoplastic resin pellet, etc.

WO/2006/106352	POLYMERIC MATERIALS
WO/2002/000408	METHOD FOR THE PRODUCTION OF THERMOPLASTIC PLASTICS WITH NATURAL FIBRE COMPONENTS
JP7357729	Pellets and molded bodies

MIURA HODAKA
TAKAMURA KAZUYA
FUJIURA TAKAYASU
TASHIRO NAOYUKI
ZENKE SEIJI

PCT/JP2010/069750

May 12, 2011

November 05, 2010

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KOBE STEEL LTD (JP)
MIURA HODAKA
TAKAMURA KAZUYA
FUJIURA TAKAYASU
TASHIRO NAOYUKI
ZENKE SEIJI

B29B9/14; B65H69/06; B29K105/14

WO2009044641A1

2009-04-09

JPH06114832A	1994-04-26
EP1375103A1	2004-01-02
US5052172A	1991-10-01

See also references of EP 2497617A4

OGURI Shohei et al. (JP)
Shohei Oguri (JP)

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