Title:
SIZING AGENT FOR CARBON FIBER
Document Type and Number:
Japanese Patent JPS6350573
Kind Code:
A
Abstract:
An isocyanate compound is reacted with an unsaturated alcohol, which can be an adduct of an unsaturated carboxylic acid with an alkylene oxide, in an organic solvent; more than one of each type of reagent can be used provided that not more than one reaction proceeds at one time. The urethane product contains double bonds; it is used as a sizing agent, in aqueous emulsion or in organic solution, to coat carbon fibers to improve their adhesion to a polymeric matrix; preferably an unsaturated polyester or a vinyl ester to which the sizing agent cross-links. The matrix is then hardened to form a composite material containing the fibers.
Inventors:
SAITO MAKOTO
TOKI HIROSHI
MIYAZAKI MAKOTO
INOUE HIROSHI
TOKI HIROSHI
MIYAZAKI MAKOTO
INOUE HIROSHI
Application Number:
JP18885486A
Publication Date:
March 03, 1988
Filing Date:
August 12, 1986
Export Citation:
Assignee:
TOA NENRYO KOGYO KK
International Classes:
C08J5/06; D01F11/14; D06M13/02; D06M13/322; D06M13/425; D06M101/00; D06M101/40; (IPC1-7): C08J5/06; D06M13/38
Attorney, Agent or Firm:
Kiyoaki Takita
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