Optically variable marking

Details Optically variable marking Optically variable marking

2006-07-25

2006-07-25

Lavilla, Michael E. (Department: 1775)

Stock material or miscellaneous articles

Liquid crystal optical display having layer of specified...

With substrate layer of specified composition

C428S001300, C428S187000, C428S137000, C428S607000, C216S023000, C216S094000

Reexamination Certificate

active

07081282

ABSTRACT:
The invention relates to an optically variable marking comprising a semiopaque substrate with a first surface that is covered with an optically variable layer that is for example a liquid crystal polymer layer or a layer comprising pearlescent pigments, and a second surface that is partially covered with a metal layer in the shape of a pattern, to methods of its preparation and to its use for decorative or security applications.

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