Mitsubishi Rayon Company, Limited

Akira Agata

Hisashi Tada

Takashi Murata

Masahiro Saruta

Masahiro Sugimori

Masato Taguchi

Yukio Nishimoto

Takayuki Iseki

Yasuaki Ii

Ikuo Takiguchi

Toshihiro Hattori

Takatoshi Kubo

Shiro Asada

Kazuya Gotou

Setuo Kashiyama

The present invention relates to an epoxy resin composition for FRP that will be used for fishing rods, golf club shafts, and the like, a prepreg that is an intermediate material made up of an epoxy resin composition combined with reinforcing fibers, and a tubular molded article obtained using it. The epoxy resin composition for FRP of the present invention comprises (A) a bisphenol A-type epoxy resin, (B) an epoxy resin having oxazolidone rings, and (C) a curing agent. By using the epoxy resin composition for FRP of the present invention, a prepreg quite excellent in handleability and a tubular molded article improved in flexural strength in the longitudinal direction and crushing strength in the diametrical direction can be obtained.

Epoxy resin composition for FRP, prepreg, and tubular molding produced therefrom

A novel unidirectionally paralleled fiber reinforced thermosetting resin prepreg excellent in moldability which has plural grooves arranged continuously in longitudinal direction on at least one side surface thereof.

Prepreg and process for producing the same

Epoxy resin composition

An intermediate for a composite material is described, comprising a reinforcing material impregnated with a resin composition which comprises: (A) 100 parts by weight of a mixture of (I) a polyfunctional maleimide and (II) a polyfunctional cyanate or an oligomer thereof, or a preliminary reaction product of (I) and (II); (B) from 5 to 100 parts by weight of an epoxy compound; and (C) from 5 to 50 parts by weight of a polyester compound.

Intermediate for composite of polymaleimide, polycyanate, epoxy resin

An epoxy resin composition is disclosed, which comprises the following elements:

Epoxy resin composition and prepreg for composite materials using the

Carbon fiber for composite material

An intermediate for a composite material is disclosed. The intermediate is obtained by impregnating an epoxy resin composition containing a specific additive into a carbon fiber. The composite material obtained from the intermediate has improved mechanical properties.

Intermediate for composite materials

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Toyohashi, Japan

Akira Agata