Title:
TOWPREG, METHOD FOR MANUFACTURING SAME, AND METHOD FOR MANUFACTURING PRESSURE CONTAINER
Document Type and Number:
WIPO Patent Application WO/2019/225442
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing: a towpreg that has superior bobbin unspoolability and process pass-through properties, and is capable of yielding a fiber-reinforced composite having extremely high 0° tensile strength utilization; and a pressure container using such a towpreg. The means for solving this problem is a towpreg obtained by impregnating a reinforcing fiber tow with an epoxy resin composition containing [A]-[D], wherein: the epoxy resin composition contains 10–90 parts by mass of [A] and 10–50 parts by mass of [B] per 100 parts by mass of the epoxy resin component; the epoxy resin composition has a 25°C viscosity (η25) of 1–40 Pa·s and a 40°C viscosity (η40) of 0.2–5 Pa·s; and the cured epoxy resin composition has a glass transition temperature (Tg) of 95°C or higher. [A] A bisphenol epoxy resin [B] Unsubstituted or substituted N,N-diglycidyl aniline [C] Dicyandiamide [D] A cure accelerator
Inventors:
TSUZUKI MASAHIRO (JP)
SANO KENTARO (JP)
KAMAE TOSHIYA (JP)
SANO KENTARO (JP)
KAMAE TOSHIYA (JP)
Application Number:
PCT/JP2019/019337
Publication Date:
November 28, 2019
Filing Date:
May 15, 2019
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
C08J5/24; F17C1/00
Domestic Patent References:
| WO2016157933A1 | 2016-10-06 |
Foreign References:
| JP2011157491A | 2011-08-18 | |||
| JPH07324119A | 1995-12-12 | |||
| JP2016190920A | 2016-11-10 | |||
| JPH05320525A | 1993-12-03 | |||
| JPH0987365A | 1997-03-31 | |||
| JPH07278265A | 1995-10-24 | |||
| JPS58113226A | 1983-07-06 | |||
| JP2016190920A | 2016-11-10 | |||
| JPH0987365A | 1997-03-31 |
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