Time release perfume method and device

Details Time release perfume method and device Time release perfume method and device

1974-12-04

1976-04-20

Adee, John

Gas separation

Means within gas stream for conducting concentrate to collector

55158, 206439, 206823, B01D 5912

Patent

active

039516229

ABSTRACT:
The invention is concerned with a method and device for the time release of a fragrance such as a perfume, the odor of the fragrance released being substantially unchanged from the odor of the original fragrance. The fragrance is sealed or otherwise enclosed within a container at least one portion of which comprises a permeable membrane of polyethylene or polypropylene, the membrane having a thickness of no more than about 6 mils (0.01524 cm), the fragrance including a top note, a middle note, an end note and alcohol (such as ethanol) having a molecular weight below 100. Fragrance components slowly pass through the membrane so as to provide an odor adjacent the membrane which is unchanged from the odor of the fragrance within the container.

REFERENCES:
patent: 2732092 (1956-01-01), Lawrence
patent: 3032182 (1962-03-01), Bachtolm
patent: 3449266 (1969-06-01), Cashman et al.
patent: 3598122 (1971-08-01), Zaffaroni
patent: 3598123 (1971-08-01), Zaffaroni
patent: 3706410 (1972-12-01), Baker

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