Title:
SIZING AGENT FOR REINFORCING FIBERS, AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2019/049581
Kind Code:
A1
Abstract:
Provided are: a sizing agent for reinforcing fibers, which can simultaneously impart excellent fiber convergence properties in reinforcing fibers used to reinforce a matrix resin, excellent rubfastness, excellent uniformity of adhesion and excellent adhesive properties with a matrix resin; and a synthetic fiber strand and a fiber-reinforced composite material, which use the sizing agent. This sizing agent for reinforcing fibers contains a polyamide (A), a carbodiimide group-containing compound (B) and water (C). The melt viscosity at 150°C of the polyamide (A) is 100-15,000 mPa·s, and the compound (B) has two or more carbodiimide groups in the molecule. The polyamide (A) is preferably a water-soluble polyamide.
Inventors:
YABUMOTO ATSUSHI (JP)
SUZUKI KENTARO (JP)
NAKAYAMA TAKEYOSHI (JP)
SUZUKI KENTARO (JP)
NAKAYAMA TAKEYOSHI (JP)
Application Number:
PCT/JP2018/029514
Publication Date:
March 14, 2019
Filing Date:
August 07, 2018
Export Citation:
Assignee:
MATSUMOTO YUSHI SEIYAKU KK (JP)
International Classes:
D06M15/59; C08J5/06; D06M13/322; D06M101/40
Foreign References:
JPH05263363A | 1993-10-12 | |||
JP2015074837A | 2015-04-20 | |||
JPH0859303A | 1996-03-05 | |||
JPH05311069A | 1993-11-22 |
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