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US 2012/0070478 A1Published application
Color changing consumer products
AssigneeColgate-Palmolive Company
InventorsThomas Boyd, Guisheng Pan, Harsh M. Trivedi, Wei Wang, Nora Lin
Life of this patent
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Abstract
The invention relates to personal care products containing multilayer films with decorative layers and may impart a noticeable color change. The invention is applicable in products including type toothpaste, soaps, and other products until diluted with water (or saliva).
Claims33
A composition comprising a film, the film comprising:
- a first shielding polymer layer,
- a middle decorative polymer layer, and
- a second shielding polymer layer, wherein the first and second shielding layers obscure at least a portion of middle decorative layer and are adapted to reveal the middle decorative layer upon use of the composition.
Dependencies are inferred from the claim text.