PREPREG, FIBER-REINFORCED COMPOSITE MATERIAL, TUBULAR BODY MADE OF FIBER-REINFORCED COMPOSITE MATERIAL, GOLF CLUB SHAFT, AND FISHING ROD

WIPO Patent Application WO/2023/157507

A1

The present invention addresses the problem of providing: a prepreg having excellent mechanical properties such as strength or elastic modulus, excellent appearance such as low coloring, transparency, or weather resistance, and excellent tackiness; a fiber-reinforced composite material; a tubular body made of the fiber-reinforced composite material; a golf club shaft; and a fishing rod using said prepreg. The prepreg comprises a reinforcing fiber and a resin composition, wherein the resin composition contains components [A]-[D] below and satisfies the following conditions (1)-(3). Component [A]: an epoxy resin; Component [B]: a dicyandiamide; Component [C]: a compound which has a boiling point of 130°C or higher and a molecular weight m of 50-250, and does not have an epoxy group in the molecule and does not substantially have epoxy resin curing ability; Component [D]: a phenoxy resin; (1): The content of [A1] an isocyanuric acid-type epoxy resin as component [A] is 10-40 parts by mass per 100 parts by mass in total of the epoxy resin; (2): The content of [A2] a novolac-type epoxy resin as component [A] is 10-50 parts by mass per 100 parts by mass in total of the epoxy resin; (3): The content of [A3] a glycidylamine-type epoxy resin as component [A] is 10 parts by mass or less per 100 parts by mass in total of the epoxy resin.

OMMURA YASUYUKI (JP)
HIRANO MASANORI (JP)
SANO KENTARO (JP)

PCT/JP2023/000271

August 24, 2023

January 10, 2023

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TORAY INDUSTRIES (JP)

C08J5/24; A01K87/00; A63B53/10; C08G59/44; C08L63/00

WO2019181402A1	2019-09-26
WO2018003691A1	2018-01-04

JP2017226745A	2017-12-28
JP2001181375A	2001-07-03
JP2007291227A	2007-11-08

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