Security element with color-switching effect, use of same and method for producing same
US9387718B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2012 |
| Grant date | Jul 12, 2016 |
| Priority date | — |
| Expiry date | Oct 3, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB42D25/47
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A security element includes a coating of a material which has an optically variable effect, in particular a color-tilt effect, and cutouts which are identifiable in transmitted light. The security element comprises a carrier substrate and a partial layer having cutouts. The partial layer is made of an opaque coating having light-absorbing properties on the side that faces the coating made of the material having an optically variable effect and having a metallic coloration on the side that faces away from the coating made of the material having an optically variable effect. The partial opaque coating consists of a light-absorbing metallic layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.