Title:
FLAT, LIGHTWEIGHT MEMBER AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/209454
Kind Code:
A1
Abstract:
In order to provide a flat, lightweight member having excellent mechanical properties in an end and excellent adhesion between core and skin, as well as favorable appearance and superior producibility, this flat, lightweight member is characterized by having: a skin layer that is arranged on the two surfaces of the flat, lightweight member; an end reinforcement layer that is disposed at the ends of the flat, lightweight member so as to make contact with both inner surfaces of the skin layer on the two surfaces; and a core layer that is arranged in a space enclosed by the skin layer and the end reinforcement layer, so as to make direct contact with the inner surfaces of the skin layer. The skin layer includes one or more layers composed of reinforcing fibers aligned in one direction and a first matrix resin. The end reinforcement layer includes a fiber-reinforced resin sheet, and the core layer includes heat-expandable particles and a second matrix resin.
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Inventors:
TSUMURA YUSUKE (JP)
MATSUSHIMA SHOGO (JP)
NISHIZAKI AKIHIKO (JP)
MATSUSHIMA SHOGO (JP)
NISHIZAKI AKIHIKO (JP)
Application Number:
PCT/JP2022/007537
Publication Date:
October 06, 2022
Filing Date:
February 24, 2022
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
B29C44/00; B29C44/06; B29C44/36; B29C70/20; B29C70/42; B32B5/28; B29K105/04; B29L9/00
Domestic Patent References:
| WO2021010028A1 | 2021-01-21 | |||
| WO2012124450A1 | 2012-09-20 | |||
| WO2014162873A1 | 2014-10-09 |
Foreign References:
| US20200047879A1 | 2020-02-13 | |||
| EP3556544A1 | 2019-10-23 | |||
| JP2001526128A | 2001-12-18 | |||
| JP2004217829A | 2004-08-05 | |||
| JP2020151876A | 2020-09-24 | |||
| JPH08276441A | 1996-10-22 | |||
| JP5272418B2 | 2013-08-28 | |||
| JP2014172201A | 2014-09-22 |
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