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US 6,146,485 AGranted
Method for making a decorative film with hot melt adhesive layer
AssigneeLeonhard Kurz GmbH & Co.
InventorsCharles A. Iacono, Robert E. Miller, Werner Adel
Life of this patent
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Abstract
In a method of making such a decorative film, a thermoplastic adhesive formulation is heated to a temperature in excess of the softening temperature of the thermoplastic in the formulation to form a molten adhesive formulation, which is then applied to a decorative layer on the carrier sheet thereby forming a transfer layer having a transfer surface and the transfer layer and carrier sheet form the decorative film. The decorative film is then chilled.
Claims16
A method for making a decorative film having a heat-activatable transfer layer for affixation to a substrate to be decorated, comprising:
- (a) providing a carrier sheet having a decorative layer applied to a first surface of the carrier sheet;
- (b) heating a heat-activatable thermoplastic adhesive formulation to a temperature in excess of a softening temperature of a thermoplastic in the formulation such that the adhesive formulation is molten;
- (c) applying a layer of the molten thermoplastic adhesive formulation on the decorative layer thereby forming a heat-activatable transfer layer on top of the carrier sheet, wherein the transfer layer comprises the decorative layer and the layer of the adhesive formulation, the transfer layer having a transfer surface for affixation to a substrate and said transfer layer and said carrier sheet form a decorative film;
- and
- (d) chilling said decorative film such that the decorative film comprises a solidified layer of a molten adhesive formulation, wherein said molten adhesive formulation is solvent-free.
2 more elements
Dependencies are inferred from the claim text.