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AssigneeToray Industries, Inc.
InventorsMasato Honma, Atsuki Tsuchiya, Shiro Honda, Ryuji Sawaoka, Koyomi Nakahara
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The present invention provides a light-weight fiber-reinforced composite material that has excellent flame retardance and mechanical properties and never emits a halogen gas. The present invention also provides a prepreg and en epoxy resin composition suited to obtain the above described fiber-reinforced composite material. The present invention also provides an integrated molding which is produced using the above described fiber-reinforced composite material, thereby suitable for use in electric/electronic casings. The epoxy resin composition is such that it contains the following components [A], [B] and [C]: [A] epoxy resin, [B] amine curing agent, and [C] phosphorus compound, wherein the concentration of the component [C] is 0.2 to 15% by weight in terms of phosphorus atom concentration.
An epoxy resin composition for carbon-fiber-reinforced composite materials, comprising the following components [A], [B] and [C]:
A carbon-fiber-reinforced composite sheet, characterized in that the thickness of the sheet is 0.05 to 2.0 mm, the flame retardance is UL-94 V-1 or V-0, and the phosphorus atom concentration in the entire composite material is 0.03 to 12% by weight.
An integrated molding, in which a member (I), which comprises a fiber-reinforced composite sheet comprising (a) continuous reinforcing fiber, (b) a matrix resin comprising a thermosetting resin as a major component and (c) a flame-retardant, is joined with another member (II), characterized in that the flame retardance in accordance with UL-94 of the member (I) is V-1 or V-0 for test pieces having a substantial thickness of the member (I).
A fiber-reinforced composite sheet (A), comprising (a) continuous reinforcing fiber, (b) a matrix resin comprising a thermosetting resin as a major component and (c) a flame-retardant, characterized in that at least part of the sheet surface has (d) a layer comprising a thermoplastic resin as a major component and the flame retardance in accordance with UL-94 of the sheet is V-1 or V-0 for test pieces having a substantial thickness of the sheet.
Dependencies are inferred from the claim text.