Adeka Corporation

Kazuhide Morino

Naohiro Fujita

Masato Inadome

Akinori Okubo

Chihiro Asakura

Takeshi Sukemune

Yosuke Aragane

Tasuku Aoki

Tomoko Kimura

Masayoshi Goke

Tomo Kimura

Gaku Kimura

A resin composition for fiber-reinforced plastic having a good balance between stability and curability and capable of producing fiber-reinforced plastic with improved strength. The composition contains an epoxy resin, an acid anhydride, and a catalyst that is liquid at 25° C. The catalyst is at least one member selected from the group consisting of a compound composed of an acid and a base and a compound composed of a quaternary onium cation and an anion.

Resin composition for fiber-reinforced plastic, and fiberreinforced plastic containing said composition

A molding apparatus reduces waviness or deformation of fibers. The molding apparatus includes a fiber feeder () that feeds fibers () to a lamination area () long in a first direction, a resin composition feeder () that feeds a resin composition () to the lamination area (), an impregnator () that impregnates the fibers () fed to the lamination area () with the resin composition (), a curing accelerator () that accelerates curing of the resin composition () fed to the lamination area () while the fibers () fed in the lamination area () are being tensioned, and a transporter () that relatively moves the devices (, and) in the first direction with respect to the lamination area (). The resin composition () contains an epoxy resin (A), a cyanate resin (B), and an aromatic amine curing agent (C) that is liquid at 25° C.

Molding apparatus, manufacturing method, and fiber reinforced resin material

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

The present invention provides a resin composition for a fiber-reinforced plastic, the resin composition including a cyanate ester (A), an epoxy resin (B), and an aromatic amine-based curing agent that is liquid at 25&#xb0; C. (C), wherein the average number of cyanate groups in the cyanate ester (A) is 2.1 or greater, and/or the average number of epoxy groups in the epoxy resin (B) is 2.1 or greater. A fiber-reinforced plastic that is produced using this composition and a reinforcing fiber has favorable heat resistance and excellent tensile and bending properties, and therefore can be applied to a wide variety of fields including transport vehicles such as ships, automobiles, and aircrafts, sporting goods, building materials such as sinks and window frames, as well as industrial machinery and materials such as high-pressure gas tanks and blades for wind power generation.

Resin composition for fiber-reinforced plastic, cured product of same, and fiber-reinforced plastic comprising said cured product

A resin composition for fiber reinforced plastic which is a resin composition comprising an epoxy resin (A), a cyanate resin (B) and a liquid aromatic amine curing agent (C), and, as necessary, further an active energy radiation absorbable component (D), wherein 20 to 100 percent by mass of the aforementioned epoxy resin (A) is an epoxy compound expressed by the following general formula (1), a cured product obtained by curing a composition containing said resin composition and a high-strength fiber-reinforced plastic; wherein (a) and (b) each independently express an integer from 2 to 10, (c) expresses an integer from 0 to 3, Rand Reach independently express a bivalent hydrocarbon group having 2 to 5 carbon atoms, and Rexpresses a single bond, a methylene group or &#x2014;C(CH)&#x2014;.

Resin composition for fiber-reinforced plastic, cured product thereof, fiber-reinforced plastic containing said cured product, and method for producing fiber-reinforced plastic

Growing community of inventors

Kuki, Japan

Kazuhide Morino