PRESSURE VESSEL AND METHOD FOR MANUFACTURING PRESSURE VESSEL

Title:

PRESSURE VESSEL AND METHOD FOR MANUFACTURING PRESSURE VESSEL

Document Type and Number:

WIPO Patent Application WO/2022/123883

Kind Code:

A1

Abstract:

Provided are: a pressure vessel which has excellent gas barrier properties, in which cracks are less likely to occur, and which has excellent internal pressure fatigue; and a method for manufacturing this pressure vessel.　This pressure vessel has, at least on a body portion thereof, a layer formed from a fiber-reinforced resin material containing a resin component and continuous reinforcing fibers. The ratio (inner area/outer area) of the continuous reinforcing fiber content (volume %) in an inner area of the layer from inside to 0.1% in the thickness direction, and the continuous reinforcing fiber content (volume %) in an outer area of the layer from outside to 0.1% in the thickness direction is 0.80 to 0.99. The continuous reinforcing fiber content (volume %) in a center area of the layer, the center area extending from over 0.1% in the thickness direction from inside, to over 0.1% in the thickness direction from outside, is 40-60% by volume.

Inventors:

MATSUMOTO NOBUHIKO (JP)
IKEUCHI KOUSUKE (JP)
MITADERA JUN (JP)

Application Number:

PCT/JP2021/036919

Publication Date:

June 16, 2022

Filing Date:

October 06, 2021

Export Citation:

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Assignee:

MITSUBISHI GAS CHEMICAL CO (JP)

International Classes:

B29C70/16; B29C70/32; F16J12/00; B29K105/08; B29L22/00

Domestic Patent References:

WO2004051138A1	2004-06-17
WO2016084475A1	2016-06-02

Foreign References:

JP2016102546A	2016-06-02
JPH06328577A	1994-11-29
JP2017008316A	2017-01-12
JP2016190920A	2016-11-10

Other References: