Fragrance release device containing a highly adsorptive copolymer
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United States of America Patent
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-
Oct 9, 1990
Grant Date -
N/A
app pub date -
Jul 7, 1989
filing date -
Jul 7, 1989
priority date (Note) -
Expired
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Abstract
A fragrance controlled release device including a container having at least two chambers, the two chambers being symmetrical and in the shape of an hourglass, a reduced and restricted channel for providing communication between the two chambers, the channel being of a diameter substantially less than the diameters of the two chambers, porous particulate carrier powder in one of the chambers, the one chamber being air impermeable and the other chamber being air permeable, and a fragrance contained and entrapped within the carrier powder.
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