Compositions able to indicate when they become inefficient...

Details Compositions able to indicate when they become inefficient... Compositions able to indicate when they become inefficient...

2006-04-25

2006-04-25

Cole, Monique T. (Department: 1743)

Perfume compositions

Perfume compositions

C252S001000

Reexamination Certificate

active

07033990

ABSTRACT:
The invention concerns a composition capable of indicating by color change when consumer articles, particularly volatile material dispensers, containing or associated with the composition have become inefficient in use. The composition includes: a) a volatile liquid component, b) a non-volatile component of an oxide or hydroxide of the metals of group III or IV of the periodic table and a polymer obtainable by the reaction, in the presence of the volatile liquid component, of a functionalized polymer with a cross-linking, and c) a dye capable of changing color as a function of the medium in which it is incorporated. Optionally, the composition can also contain an effective amount of an acidic compound. The invention also concerns the consumer article containing the composition, in particular a device aimed to diffuse a volatile or partially volatile liquid, more specifically an air freshener.

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