Plastic Article Comprising Oriented Effect Magnetizable Pigments
AssigneeBASF Catalysts LLC
InventorsDoreen Becker, Stephane Rochard
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Abstract
Pigments having magnetic properties are manipulated using magnetic fields to produce color patterns. The color patterns may be created in a medium such as a molten plastic or a plastic solution. Once disposed in the flowable medium, the pigments migrate by the influence of magnets after which the pigments remain static due to the drying and/or hardening of the medium. A molded plastic article comprising oriented effect magnetizable pigments is provided. The article may be used to contain cosmetics, personal care products, or foods.
Claims19
A method of creating effects comprising the steps of:
- (a) disposing effect magnetic pigments comprising platelets coated with at least one metal layer or metal oxide layer in a fluid plastic to form a fluid mixture;
- (b) altering the orientation of said pigments in the fluid mixture by magnetic fields;
- (c) shaping the oriented fluid mixture;
- and
- (d) hardening the shaped oriented fluid mixture.
A molded plastic article comprising oriented effect magnetizable pigments.
Dependencies are inferred from the claim text.