发明授权
- 专利标题: Robust multilayer magnetic pigments and foils
- 专利标题(中): 坚固的多层磁性颜料和箔
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申请号: US11610256申请日: 2006-12-13
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公开(公告)号: US07285336B2公开(公告)日: 2007-10-23
- 发明人: Vladimir P. Raksha , Paul G. Coombs , Charles T. Markantes , Dishuan Chu
- 申请人: Vladimir P. Raksha , Paul G. Coombs , Charles T. Markantes , Dishuan Chu
- 申请人地址: US CA Milpitas
- 专利权人: JDS Uniphase Corporation
- 当前专利权人: JDS Uniphase Corporation
- 当前专利权人地址: US CA Milpitas
- 代理机构: Allen, Dyer, Doppelt, Milbrath & Gilchrist, P.A.
- 主分类号: B32B5/16
- IPC分类号: B32B5/16
摘要:
Multilayered magnetic pigment flakes and foils are provided. The pigment flakes can have a stacked layer structure on opposing sides of a magnetic core, or can be formed as an encapsulant structure with encapsulating layers around the magnetic core. The magnetic core in the stacked layer structure includes a magnetic layer that is sandwiched between opposing insulator layers, which in turn are sandwiched between opposing reflector layers. Similarly, the magnetic core in the encapsulant structure includes a magnetic layer that is surrounded by an insulator layer, which in turn is surrounded by a reflector layer. The insulator layers in the pigment flakes substantially prevent corrosion of the flakes when exposed to harsh environments. Some embodiments of the pigment flakes and foils exhibit a discrete color shift at differing angles of incident light or viewing. The pigment flakes can be interspersed into liquid media such as paints or inks to produce colorant compositions for subsequent application to objects or papers. The foils can be laminated to various objects or can be formed on a carrier substrate.
公开/授权文献
- US20070098989A1 Robust Multilayer Magnetic Pigments And Foils 公开/授权日:2007-05-03