Method of producing an object having a fluorinated polymer coating
AssigneeSefar AG
InventorsMohammad Mokbul Hossain, Christoph Ellenberger, Karim Chakhari
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Abstract
The invention relates to a method of producing an object having a fluorinated polymer coating free of per- and polyfluorinated acids and salts thereof, wherein the method comprises a step DF of depositing a fluorinated polymer coating on the object by means of plasma polymerization of a fluorinated precursor monomer and a step IG of exposing the object to an inhibiting gas which inhibits the formation of per- and polyfluorinated acids and salts thereof in or on the deposited fluorinated coating. Thereby step IG is carried out after step DF, and from the start of step DF until the end of step IG the object is treated in a substantially oxygen free atmosphere.
Claims20
A method of producing an object having a fluorinated polymer coating free of per-and polyfluorinated acids and salts thereof, wherein the method comprises:
- performing a step DF of depositing a fluorinated polymer coating on the object by means of plasma polymerization of a fluorinated precursor monomer;
- performing a step IG of exposing the fluorinated polymer coating on the object to an inhibiting gas which inhibits the formation of per- and polyfluorinated acids and salts thereof in or on the deposited fluorinated polymer coating and, when the fluorinated polymer coating is exposed to the inhibiting gas, no plasma is present,
- wherein the step IG is carried out after the step DF, and
- wherein from the start of the step DF until the end of the step IG the object is treated in a substantially oxygen free atmosphere.
Dependencies are inferred from the claim text.