- 专利标题: Coextrusion of periodically modulated structures
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申请号: US17495089申请日: 2021-10-06
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公开(公告)号: US12070887B2公开(公告)日: 2024-08-27
- 发明人: Josef Riedl
- 申请人: GIESECKE+DEVRIENT EPAYMENTS GMBH
- 申请人地址: DE Munich
- 专利权人: GIESECKE+DEVRIENT EPAYMENTS GMBH
- 当前专利权人: GIESECKE+DEVRIENT EPAYMENTS GMBH
- 当前专利权人地址: DE Munich
- 代理机构: Workman Nydegger
- 优先权: DE 2016013776.2 2016.11.18
- 分案原申请号: US16461570
- 主分类号: B29C48/31
- IPC分类号: B29C48/31 ; B29C48/00 ; B29C48/07 ; B29C48/08 ; B29C48/17 ; B29C48/19 ; B29C48/20 ; B29C48/305 ; B29C48/315 ; B29C48/49 ; B29C48/495 ; B29C48/92 ; B29L7/00
摘要:
A method for manufacturing a foil having a variable strip geometry, which makes it possible to supply a foil that bears a complex security feature. Varying of the geometry is effected by means of a movement of a position-variable distributor rail of the extruder.
公开/授权文献
- US20220024100A1 COEXTRUSION OF PERIODICALLY MODULATED STRUCTURES 公开/授权日:2022-01-27
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