Adeka Corporation

Chihiro Asakura

Ryo Ogawa

Takeshi Endo

Ken-ichi Tamaso

Kozo Matsumoto

Naohiro Fujita

Kazuhide Morino

Masato Inadome

Ken-Ichi Tamaso

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), Rand Reach independently represent an alkyl group or an aryl group, and X and Y are an oxygen atom.

Resin composition, cured product thereof, fibre-reinforced plastic, and fibre-reinforced plastic flameproofing method

An epoxy resin composition comprising an epoxy resin (A), a curing agent (B) and a phosphorous-containing compound (C) indicated by the following general formula (1) and also, if necessary, a flame retardant (D), and a laminated plate comprising said resin composition; wherein m indicates an integer from 2 to 10, Rto Reach independently indicate a hydrogen atom, an alkyl group or an aryl group, Rindicates a hydrocarbon group that may contain an oxygen atom, a sulfur atom or a nitrogen atom, X indicates an oxygen atom or a sulfur atom, Y indicates an oxygen atom, a sulfur atom or &#x2014;NR&#x2014;, and Rindicates a hydrogen atom, an alkyl group or an aryl group.

Epoxy resin composition

A flame-retardant epoxy resin composition wherein (A) epoxy resin, (B) a curing agent and (C) a phosphorous-containing compound expressed by the following general formula (1) are contained; a prepreg using the same and a laminated plate using said prepreg; wherein m expresses an integer from 2 to 10, Rand Reach independently express an alkyl group or an aryl group, Rexpresses a hydrocarbon group that may contain an oxygen atom, a sulfur atom or a nitrogen atom, X expresses an oxygen atom or a sulfur atom, Y expresses an oxygen atom, a sulfur atom or &#x2014;NR&#x2014;, and in this regard, Rexpresses a hydrogen atom, an alkyl group or an aryl group.

Flame-retardant epoxy resin composition, prepreg and laminated plate using the same

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Saitama, Japan

Chihiro Asakura