发明申请
- 专利标题: UNDERLAYMENT
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申请号: PCT/EP2020/071294申请日: 2020-07-28
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公开(公告)号: WO2021018903A1公开(公告)日: 2021-02-04
- 发明人: VAN DER EEM, Joris , BOVENSCHEN, Soon Joo , GRIES, Ruud
- 申请人: LOW & BONAR B.V.
- 申请人地址: Westervoortsedijk 73 6827 AV ARNHEM NL
- 专利权人: LOW & BONAR B.V.
- 当前专利权人: LOW & BONAR B.V.
- 当前专利权人地址: Westervoortsedijk 73 6827 AV ARNHEM NL
- 代理机构: CPW GMBH
- 优先权: EP19189072.2 20190730; EP19213574.7 20191204
- 主分类号: B32B3/28
- IPC分类号: B32B3/28 ; B32B3/12 ; B32B7/05 ; E04F15/20 ; E04F15/18
摘要:
A composite comprising a core, a first cover layer and a second cover layer, wherein the core is provided from an uncut flat body, wherein the core is a three dimensional structure having a first main surface and a second main surface, the first cover layer is in contact with the first main surface creating multiple contact areas and the second cover layer is in contact with the second main surface creating multiple contact areas, wherein the multiple contact areas between the first cover layer and the first main surface are offset in x-direction and y-direction to the multiple contact areas between the second cover layer and the second main surface, characterized in that the first cover layer and the second cover layer are different.
IPC分类: