Back to results
US 9,778,618 B2Granted
Multilayer film and authentication label
AssigneeDupont Authentication Inc.
InventorsMichael G Fickes, Michael L Levin
Life of this patent
Estimating the term…
Abstract
In a first aspect, a multilayer film includes a holographic image layer, a first heat-shrinkable layer and a first adhesive layer between the holographic image layer and the first heat-shrinkable layer. In a second aspect, an authentication label includes a holographic image layer, a first heat-shrinkable layer, a first adhesive layer between the holographic image layer and the first heat-shrinkable layer, and a back adhesive layer.
Claims26
A multilayer film comprising:
- a holographic image layer;
- a first heat-shrinkable layer;
- a first adhesive layer between the holographic image layer and the first heat-shrinkable layer;
- a second heat-shrinkable layer adhered to the holographic image layer on a side opposite the first heat-shrinkable layer;
- and
- a third adhesive layer between the holographic image layer and the second heat-shrinkable layer,
- and wherein the holographic image layer comprises a volume hologram.
4 more elements
A multilayer film comprising:
- a holographic image layer;
- a first heat-shrinkable layer;
- a first adhesive layer between the holographic image layer and the first heat-shrinkable layer;
- wherein
- on heating, the first heat-shrinkable layer shrivels or shrinks such that at least a part of the holographic image layer is unprotected.
2 more elements
An authentication label comprising:
- a holographic image layer;
- a first heat-shrinkable layer;
- a first adhesive layer between the holographic image layer and the first heat-shrinkable layer;
- and
- a back adhesive layer, wherein the holographic image layer is between the back adhesive layer and the first adhesive layer, and wherein on heating, the first heat-shrinkable layer shrivels or shrinks such that at least a part of the holographic image layer is unprotected.
2 more elements
Dependencies are inferred from the claim text.