Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
CARBON FIBER COATED WITH SIZING AGENT, PROCESS FOR PRODUCING CARBON FIBER COATED WITH SIZING AGENT, PREPREG, AND CARBON FIBER REINFORCED COMPOSITE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2013/099707
Kind Code:
A1
Abstract:
A carbon fiber coated with a sizing agent is provided. This carbon fiber exhibits excellent adhesion to a matrix resin, ensures excellent stability of composite physical properties of a prepreg even after long-term storage, and is excellent in high-order processability. A process for producing the carbon fiber coated with a sizing agent, a prepreg, and a carbon fiber reinforced composite material are also provided. A carbon fiber coated with a sizing agent which comprises (A) an aliphatic epoxy compound and (B) an aromatic compound that contains (B1) an aromatic epoxy compound as the essential component, characterized in that the (a)/(b) ratio is 0.50 to 0.90 wherein (a) is the height (cps) of the peak at a binding energy of 284.6eV assignable to CHx, C-C and C=C in the C1S core spectrum as determined by subjecting the surface of the sizing agent to X-ray photoelectron spectroscopy using AlKα1.2 as the X-ray source at a photoelectron emission angel of 15°, and (b) is the height (cps) of the peak at a binding energy of 286.1eV assignable to C-O therein.

Inventors:
ICHIKAWA TOMOKO (JP)
ENDO MAKOTO (JP)
TAIKO HIROSHI (JP)
KOBAYASHI MASANOBU (JP)
ARAI NOBUYUKI (JP)
MISUMI JUN (JP)
Application Number:
PCT/JP2012/082823
Publication Date:
July 04, 2013
Filing Date:
December 18, 2012
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
D06M13/11; D06M15/55; D06M101/40
Domestic Patent References:
WO2005082982A12005-09-09
WO2003010383A12003-02-06
WO2003010383A12003-02-06
Foreign References:
JP2005213687A2005-08-11
JP2005179826A2005-07-07
JP2005256226A2005-09-22
JPH02307979A1990-12-21
JPH04361619A1992-12-15
US3957716A1976-05-18
JPS57171767A1982-10-22
JPS6314114B21988-03-29
JPH07279040A1995-10-24
JPH08113876A1996-05-07
JPS57128266A1982-08-09
US4555446A1985-11-26
JPS6233872A1987-02-13
JPH079444A1995-01-13
JP2000336577A2000-12-05
JPS6128074A1986-02-07
JPH01272867A1989-10-31
JP2005179828A2005-07-07
JP2005256226A2005-09-22
JP2008280624A2008-11-20
JP2005213687A2005-08-11
JP2002309487A2002-10-23
JPH02307979A1990-12-21
JP2002173873A2002-06-21
JPS5971479A1984-04-23
JPS5841973A1983-03-11
Other References:
See also references of EP 2799616A4
Attorney, Agent or Firm:
SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)
Download PDF:
View/Download PDF      PDF Help
Claims:



 
Previous Patent: EXHAUST GAS PURIFYING CATALYST AND METHOD FOR PRODUCING SAME

Next Patent: LIQUID CRYSTAL DISPLAY DEVICE