A method for applying a polymer coating to the internal...

B - Operations – Transporting – 05 – D

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B05D 7/22 (2006.01) B05D 5/08 (2006.01) B65D 25/14 (2006.01) B05D 3/02 (2006.01)

Patent

CA 2396194

Provided is a method for the application of a polymer coating to an internal surface of a container, which method comprises: (a) heating the inside surface of the container to be coated; (b) spraying an aqueous suspension of a fluorine-containing polymer onto the surface to form a coating on the surface; and (c) sintering the coating; wherein the container comprises a base and one or more side walls defining a container opening and is suitable for storing a medicament, and wherein the spraying step is conducted with a first spraying means configured to produce an axial spray pattern that is substantially conical about an axis perpendicular to the container base.

Cette invention se rapporte à un procédé qui sert à appliquer un revêtement polymère sur une surface interne d'un récipient et qui consiste à cet effet: (a) à chauffer la surface interne du récipient à revêtir; (b) à pulvériser une suspension aqueuse d'un polymère contenant du fluor sur cette surface, afin de former un revêtement sur celle-ci; et (c) à fritter ledit revêtement. Ce récipient comprend une base et une ou plusieurs parois latérales définissant une ouverture du récipient, lequel est conçu pour contenir un médicament, et l'opération de pulvérisation est effectuée avec un premier moyen de pulvérisation destiné à produire une structure de pulvérisation axiale qui est essentiellement conique autour d'un axe perpendiculaire à la base du récipient.

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