Resin composition, cured product thereof, fibre-reinforced plastic, and fibre-reinforced plastic flameproofing method
AssigneeAdeka Corporation
InventorsMasato Inadome, Naohiro Fujita, Kazuhide Morino, Chihiro Asakura
Life of this patent
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Abstract
Provided is a resin composition that is capable of producing a cured product having excellent environmental suitability, high strength, and excellent flame retardancy, and that is suitably usable as a matrix resin for fiber-reinforced plastics. A resin composition contains (A) an epoxy resin, (B) a cyanate resin, (C) an aromatic amine curing agent that is liquid at 25° C., and (D) a phosphorus-containing compound represented by formula (1). Preferably, in formula (1), R1 and R2 each independently represent an alkyl group or an aryl group, and X and Y are an oxygen atom.
Claims20
A resin composition comprising:
- (A) an epoxy resin;
- (B) a cyanate resin;
- (C) an aromatic amine curing agent that is liquid at 25° C.;
- and
- (D) a phosphorus-containing compound represented by formula (1) below:
- wherein, in formula (1),
- m represents an integer from 1 to 10;
- R1 and R2 each independently represent an alkyl group, an aryl group, or —NR4R5;
- R4 and R5 each independently represent a hydrogen atom, an alkyl group, or an aryl group;
- in cases where R1 and R2 are both —NR4R5, each R4 may be the same or different from one another, and R5 s may be the same or different from one another;
- R3 represents a hydrocarbon group, wherein the hydrocarbon group may contain an atom selected from the group consisting of oxygen, sulfur, phosphorus, and nitrogen;
- X represents an oxygen atom or a sulfur atom;
- Y represents an oxygen atom, a sulfur atom, or —NR6—;
- and
- R6 represents a hydrogen atom, an alkyl group, or an aryl group, and
- wherein a blending ratio of the phosphorus-containing compound represented by formula (1) with respect to 100 parts by mass of the epoxy resin is from 20 to 100 parts by mass.
Dependencies are inferred from the claim text.