Medicinal inhalation devices and components thereof
Assignee3M Innovative Properties Company
InventorsPhilip A. Jinks, Moses M. David, Rudolf J. Dams
Life of this patent
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Abstract
A medicinal inhalation device having a non-metal coating coated on at least a portion thereof, and onto which non-metal coating an at least partially fluorinated compound is then covalently bonded.
Claims14
A method of making a medicinal inhalation device or a component of a medicinal inhalation device comprising:
- a) forming a non-metal coating on at least a portion of a surface of the device or the component, respectively, said coating having at least one functional group;
- b) applying to at least a portion of a surface of the non-metal coating a composition comprising an at least partially fluorinated compound comprising at least one functional group;
- and
- c) allowing at least one functional group of the at least partially fluorinated compound to react with at least one functional group of the non-metal coating to form a covalent bond.
A medicinal inhalation device or a component of a medicinal inhalation device comprising a non-metal coating on at least a portion of a surface of the device or the component, respectively, and a fluorine-containing coating bonded to the non-metal coating wherein the fluorine-containing coating comprises an at least partially fluorinated compound comprising at least one functional group which shares at least one covalent bond with the non-metal coating.
A medicinal inhalation device or a component of a medicinal inhalation device comprising a non-metal coating plasma deposited on at least a portion of a surface of the device or the component, respectively, said coating being plasma deposited under ion bombardment conditions and comprising about 1 atomic percent of fluorine or less.
A medicinal inhalation device or a component of a medicinal inhalation device comprising a coating comprising a micro-hardness of at least 1 GPa on at least a portion of a surface of the device or the component, respectively.
Dependencies are inferred from the claim text.