The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 01, 1994
Filed:
Dec. 18, 1991
Applicant:
Inventor:
Paul E Marecki, May Township, Washington County, MN (US);
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65D / ; C08F / ; A61K / ;
U.S. Cl.
CPC ...
424 45 ; 2224022 ; 22240224 ;
Abstract
A device for delivering an aerosol, comprising: a casing member, a valve stem, and a diaphragm, wherein the diaphragm comprises a thermoplastic elastomer comprising a ethylene/1-butene copolymer. Also disclosed are sealing members comprising such an elastomer and thermoplastic polymer blends, e.g., for use in sealing members of the invention. The devices of the invention are particularly useful with formulations containing 1,1,1,2-tetrafluoroethane or 1,1,1,2,3,3,3-heptafluoropropane as the propellant.