| 摘要 |
PROBLEM TO BE SOLVED: To provide a prepreg for a fiber reinforced composite material having high flame resistance and high heat resistance with containing no flame retardant such as a halogen and phosphorus, etc., and excellent in fast curing and operational stability, as well as to provide the fiber reinforced composite material obtained from it. SOLUTION: This prepreg for the composite material comprises a thermosetting resin composition comprising a following component [A] and a component [B], and a following component [C], in which the prepreg contains the component [B] of 4-20 pts.wt. based on the component [A] of 100 pts.wt., and a gelling time of the prepreg at 150°C is≤5 minutes. The component [A] is a benzoxazine resin with a unit structure represented by a specific structural formula, the component [B] is an acid catalyst, and the component [C] is a flame retardant reinforced fiber. COPYRIGHT: (C)2008,JPO&INPIT
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