Device for delivering an aerosol
US6006745A · kind A · utility
51Cited by
30References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 17, 1995 |
| Grant date | Dec 28, 1999 |
| Priority date | — |
| Expiry date | May 17, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/215
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.