Device for delivering an aerosol
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United States of America Patent
Stats
-
Dec 28, 1999
Issued Date -
N/A
app pub date -
May 17, 1995
filing date -
Dec 21, 1990
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A device for delivering an aerosol comprises a casing member, a valve stem, and a sealing member, wherein the sealing member comprises a thermoplastic elastomer comprising of a copolymer of about 80-95 mole % ethylene and about 5-20 mole % of at least one comonomer wherein the comonomer(s) are 1-butene, 1-hexene, or 1-octene. The device is used with pharmaceutical formulations containing 1,1,1,2-tetrafluoroethane and/or 1,1,1,2,3,3,3-heptafluoropropane as the propellant.
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