Fluid sprinkling – spraying – and diffusing – Processes – Involving slow diffusion
Patent
1984-06-13
1986-08-12
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Processes
Involving slow diffusion
239 56, 239 60, A61L 904, A61L 901, A61L 912
Patent
active
046051651
ABSTRACT:
Described is an article useful for dispensing at a constant rate, continuously or discontinuously for discrete periods of time a volatile composition of matter such as an air freshener or perfume composition into the atmosphere surrounding said article, the article being a hollow totally enclosed flexible, rigid or partially flexible-partially rigid structure comprising a thin shell totally enclosing an inner void with part of the thin shell comprising a microporous polymer containing a plurality of finite solid filler particles whereby when the article is located in the ambient environment, the volatile material molecules are transported through the porous polymer at a substantially constant mass flow rate both of the individual volatile components and totally through the porous polymer. The functioning of the article is enabled because the microporous polymer section has (i) the property of transporting water vapor at a rate of between 50 up to 1000 g/m.sup.2 /day at about 25.degree. C. and at about 50% relative humidity at about atmospheric pressure and having an air transport rate of 100-20,000 Gurley seconds and a thickness in the range of from about 0.01 mils up to about 20 mils.
REFERENCES:
patent: 3770199 (1973-11-01), Hoek et al.
patent: 3844865 (1974-10-01), Elton et al.
patent: 3870593 (1975-03-01), Elton et al.
patent: 3885737 (1975-05-01), Watkins
patent: 4014501 (1977-03-01), Buckenmayer
patent: 4130245 (1978-12-01), Bryson
patent: 4145001 (1979-03-01), Weyenberg et al.
patent: 4161283 (1979-07-01), Hyman
patent: 4226944 (1980-10-01), Stone et al.
patent: 4227024 (1980-10-01), Spector
patent: 4247498 (1981-01-01), Castro
patent: 4248380 (1981-02-01), Lee et al.
patent: 4285468 (1981-08-01), Hyman
patent: 4330416 (1982-05-01), Sprecker
patent: 4387849 (1983-06-01), Van Loveren et al.
patent: 4440819 (1984-04-01), Rosser et al.
patent: 4452845 (1984-06-01), Lloyd et al.
Munteanu Marina A.
Seaber Geoffrey B.
Van Loveren Augustinus G.
International Flavors & Fragrances Inc.
Kashnikow Andres
Liberman Arthur L.
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