Color change perfume systems

Details Color change perfume systems Color change perfume systems

1977-06-22

1978-12-05

O'Keefe, Veronica

Compositions

Electrically conductive or emissive compositions

Metal compound containing

424 76, C11B 900

Patent

active

041285085

ABSTRACT:
This invention provides a color change perfume system in which color is caused to change when the perfume in the system is effectively exhausted to the atmosphere. The invention also provides air fresheners and the like consisting of a porous carrier impregnated with the perfumed color change system.

REFERENCES:
patent: 2084465 (1937-06-01), Stoughton
patent: 4011311 (1977-03-01), Noomen et al.
patent: 4020156 (1977-04-01), Murray et al.

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