Patent · US Active

Method for producing tamper-proof identification elements

US8067056B2 · kind B2 · utility

0Cited by

2References

10Claims

0Family size

Assignees

HUECK FOLIEN GES.M.B.H. · AT
November AG · DE

Inventors

Friedrich Kastner · Eferding, AT
Martin Bergsmann · Linz, AT
Harald Walter · Horgen, CH
Georg Bauer · Koblenzer Straße, DE
Ralph Domnick · Buckenhof, DE

Key dates

Filing date	Jul 28, 2003
Grant date	Nov 29, 2011
Priority date	—
Expiry date	Oct 7, 2027

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB42D2033/30
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

The invention relates to a method for producing tamper-proof identification elements, and to tamper-proof identification elements produced according to said method and consisting respectively of at least one layer (2) reflecting electromagnetic waves (3), a spacer layer, and a layer consisting of metallic clusters (4). According to said method, a partial or all-over layer reflecting electromagnetic waves is applied to a carrier substrate (1), followed by at least one partial and/or all-over polymer layer having a defined thickness (3), and a layer consisting of metallic clusters which is produced by means of a method using vacuum technology or from systems based on solvents is then applied to said spacer layer(s).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.