Prepreg and molding product thereof

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11059949
APP PUB NO 20200102436A1
SERIAL NO

16580202

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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To provide prepreg having high thermostability and a molded body (fiber reinforced composite) obtained from the prepreg, the prepreg is formed by impregnating a reinforced fiber having an elastic modulus of 100 to 900 GPa with an epoxy resin composition including the following Components A to D so as to have a resin content within a range of 25 to 50 mass %: Component A: an epoxy resin having an oxazolidone ring structure in a molecule thereof; Component B: an epoxy resin that is liquid at 30° C.; Component C: a diblock copolymer having a B-M structure, wherein M is a block including at least 50 mass % of methyl methacrylate, B is a block immiscible with the epoxy resins and the block M, a glass transition temperature of the block B being 20° C. or lower; and Component D: dicyandiamide, or an amine curing agent that is a derivative of dicyandiamide.

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First Claim

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Patent Owner(s)

  • NIPPON STEEL CHEMICAL & MATERIAL CO., LTD.; MAZDA MOTOR CORPORATION; NIPPON GRAPHITE FIBER CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Arai, Yutaka Tokyo, JP 74 1264
Hattori, Koichi Tokyo, JP 16 103
Himuro, Katsuya Aki-gun, JP 7 8
Honda, Masanori Aki-gun, JP 49 507
Nishida, Kenji Aki-gun, JP 89 756
Shimada, Masaki Tokyo, JP 30 143
Sugiyama, Tetsuya Tokyo, JP 61 543
Takahama, Hironobu Himeji, JP 4 35

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