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Machine translation
1. (WO1980002293) NON-PRESSURIZED DISPENSING SYSTEM AND COMPOSITION
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/002293    International Application No.:    PCT/US1980/000394
Publication Date: 30.10.1980 International Filing Date: 08.04.1980
IPC:
A01N 25/06 (2006.01), A61K 8/04 (2006.01), A61K 9/12 (2006.01), A61L 9/01 (2006.01), A61L 9/04 (2006.01), A61L 9/14 (2006.01), B05B 11/04 (2006.01), B05B 7/00 (2006.01), B26B 11/00 (2006.01), C09K 3/22 (2006.01), C09K 3/30 (2006.01)
Applicants:
Inventors:
Priority Data:
29630 13.04.1979 US
Title (EN) NON-PRESSURIZED DISPENSING SYSTEM AND COMPOSITION
(FR) SYSTEME ET COMPOSITION DE DISTRIBUTION NON-PRESSURISEE
Abstract: front page image
(EN)A water-in-air emulsion or suspension containing a dispensible material is formed by stabilization of small droplets (48) of aqueous liquid with an interfacial barrier of very fine, hydrophobic metal oxide particles (42) such as silane modified silica. As the droplets (48) are subjected to shear such as during passage through an orifice (28), and/or on the surface of the target, the shear forces experienced at least partially destabilize the barrier allowing the droplets to coalesce to form particles of controlled density and increased size and eventually can be totally destabilized into an elegant cream or lotion. At least 10% of the droplets may coalesce into particles after leaving the orifice. Active ingredients such as antiperspirants may be added to either the aqueous liquid phase or to the powder phase as long as they do not destabilize the suspension. A non-pressurized system comprises a container (10) suitable for dispensing the suspension having a compartment (14) receiving the suspension, a valve means (18) having an outlet orifice (28) of a dimension adapted to impart a preselected shear and destabilization to the suspension and the container being adapted to enable the suspension to be propelled through the outlet orifice. Other dispensing systems include shaker-top containers and roll-on applicators.
(FR)Une emulsion ou suspension d"eau dans l"air contenant un materiau distribuable est formee par stabilisation de petites gouttes (48) de liquide avec une barriere interfaciale de particules tres fines, hydrophobes d"oxyde metallique (42) telle que de la silice modifiee en silane. Lorsque les gouttes (48) sont soumises a un cisaillement, par exemple pendant le passage au travers d"un orifice (28), et/ou sur la surface de la cible, les forces de cisaillement engendrees destabilisent au moins partiellement la barriere permettant aux gouttes de fusionner pour former des particules de densite controlee et de plus grande dimension et eventuellement elle peut etre totalement destabilisee en une creme ou une lotion. Au moins 10% des gouttes peuvent fusionner en particules apres avoir quitte l"orifice. Des ingredients actifs tels que des ingredients contre la transpiration peuvent etre ajoutes soit a la phase liquide aqueuse soit a la phase pulverulente pour autant qu"ils ne destabilisent la suspension. Un systeme non-pressurise comprend un container (10) approprie a la distribution de la suspension, ayant un compartiment (14) de reception de la suspension, des moyens de vanne ayant un orifice de sortie (28) d"une dimension adaptee pour donner un cisaillement et une destabilisation predeterminee a la suspension, le container etant concu pour permettre a la suspension d"etre propulsee au travers de l"orifice de sortie. D"autres systemes de distribution consistent en des containers a partie superieure "shaker" et des applicateurs a roulement.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)