Title:
OIL AGENT FOR ACRYLIC FIBERS FOR PRODUCTION OF CARBON FIBERS, ACRYLIC FIBERS FOR PRODUCTION OF CARBON FIBERS, AND METHOD FOR PRODUCING CARBON FIBERS
Document Type and Number:
WIPO Patent Application WO/2010/140488
Kind Code:
A1
Abstract:
Disclosed is an oil agent for acrylic fibers for the production of carbon fibers, which enables the carbon fibers to have excellent strength. Also disclosed is a method for producing carbon fibers using the oil agent.
Specifically disclosed is an oil agent for acrylic fibers for the production of carbon fibers, which essentially contains an epoxy polyether-modified silicone and a surfactant. The weight ratio of the epoxy polyether-modified silicone to the total nonvolatile content of the oil agent is 1-95% by weight, and the weight ratio of the surfactant to the total nonvolatile content of the oil agent is 5-50% by weight. Also specifically disclosed is a method for producing carbon fibers, which comprises: a spinning step in which acrylic fibers for the production of carbon fibers are produced by having the above-described oil agent adhere to acrylic fibers that are the starting material for carbon fibers; a flame-proofing treatment step in which the acrylic fibers produced in the spinning step are converted into flame-resistant fibers in an oxidizing atmosphere at 200-300˚C; and a carbonizing step in which the flame-resistant fibers are carbonized in an inert atmosphere at 300-2,000˚C.
Inventors:
NAKAYAMA TAKEYOSHI (JP)
HASHIMOTO YOSHIO (JP)
NAKAGAWA MIKIO (JP)
HASHIMOTO YOSHIO (JP)
NAKAGAWA MIKIO (JP)
Application Number:
PCT/JP2010/058582
Publication Date:
December 09, 2010
Filing Date:
May 21, 2010
Export Citation:
Assignee:
MATSUMOTO YUSHI SEIYAKU KK (JP)
NAKAYAMA TAKEYOSHI (JP)
HASHIMOTO YOSHIO (JP)
NAKAGAWA MIKIO (JP)
NAKAYAMA TAKEYOSHI (JP)
HASHIMOTO YOSHIO (JP)
NAKAGAWA MIKIO (JP)
International Classes:
D06M15/65; D01F9/22; D06M101/28
Domestic Patent References:
| WO2009060834A1 | 2009-05-14 | |||
| WO2007066517A1 | 2007-06-14 |
Foreign References:
| JP2008202208A | 2008-09-04 | |||
| JP2007039866A | 2007-02-15 | |||
| JP2002371477A | 2002-12-26 | |||
| JP2004197272A | 2004-07-15 |
Attorney, Agent or Firm:
MATSUMOTO YUSHI-SEIYAKU CO., LTD. (JP)
Matsumoto Yushi-Seiyaku, Inc. (JP)
Matsumoto Yushi-Seiyaku, Inc. (JP)
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