Color changing materials arranged in slow particle coloration materials
Assigneeadidas AG
InventorMichel Reginald Pierre Joseph Lussier
Life of this patent
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Abstract
Articles comprises iron oxide colloidal nanocrystals arranged within chains, wherein the chains of nanocrystals are embedded within a material used to form the article or a transfer medium used to transfer a color to the article are described. The material or transfer medium includes elastic properties that allow the nanocrystals to display a temporary color determined by the strength of an external force applied to the article, and the material or transfer medium includes memory properties that cause the displayed temporary color to dissipate when the external force is removed, wherein the dissipation of the displayed temporary color is sufficiently slow as to be visually observable by an average observer's unaided eye.
Claims18
An article comprising iron oxide colloidal nanocrystals arranged within chains,
- wherein the chains of nanocrystals are embedded within a material used to form the article or a transfer medium used to transfer a color to the article,
- wherein the material or transfer medium comprises elastic properties that allow the nanocrystals to display a temporary color determined by the strength of an external force applied to the article, and the material or transfer medium comprises memory properties that cause the displayed temporary color to dissipate when the external force is removed,
- wherein the dissipation of the displayed temporary color is observable in the ultraviolet spectrum.
An article comprising iron oxide colloidal nanocrystals arranged within chains,
- wherein the chains of nanocrystals are embedded within a material used to form the article or a transfer medium used to transfer a color to the article,
- wherein the material or transfer medium comprises elastic properties that allow the nanocrystals to display a temporary color determined by the strength of an external force applied to the article, and the material or transfer medium comprises memory properties that cause the displayed temporary color to dissipate when the external force is removed,
- wherein the dissipation of the displayed temporary color is observable in the infrared spectrum.
An article comprising iron oxide colloidal nanocrystals arranged within chains,
- wherein the chains of nanocrystals are embedded within a material used to form the article or a transfer medium used to transfer a color to the article,
- wherein the material or transfer medium comprises elastic properties that allow the nanocrystals to display a temporary color determined by the strength of an external force applied to the article, and the material or transfer medium comprises memory properties that cause the displayed temporary color to dissipate when the external force is removed,
- wherein the dissipation of the displayed temporary color is observable in at least one of the visible, infrared, and ultraviolet spectrums.
Dependencies are inferred from the claim text.