Method for preparing lubricated surfaces and product
AssigneeBecton, Dickinson and Company
InventorsMutlu Karakelle, Richard J. Zdrahala
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Abstract
A method for preparing stable even coatings of a silicone lubricant on a low surface energy polymeric surface of an article includes plasma treatment of the surface in an atmosphere of a siloxane monomer. A layer of polysiloxane is deposited on the low energy surface to give a polysiloxane surface. A film of a polysiloxane lubricant having a surface tension substantially the same as or less than the surface energy of the polysiloxane surface is applied to the polysiloxane layer.
Claims20
A method for preparing a lubricated surface of an article comprising plasma depositing onto a polymeric surface a layer of a silicon-containing polymer to provide a silicon-containing polymeric surface and applying thereto a film of a polysiloxane lubricant, said film having a surface tension substantially the same as or less than the surface energy of said layer, said film thereby substantially fully wetting said layer.
A method for preparing a lubricated surface of an article comprising plasma depositing onto a surface a layer of a polymeric substance to give a polymeric surface and applying thereto a film of a polysiloxane lubricant, said film having a surface tension substantially the same as or less than the surface energy of said layer, said film thereby substantially fully wetting said layer.
A method for preparing a lubricated perfluorinated polymeric surface of an article comprising:
- (a) subjecting a perfluorinated polymeric surface to an ionizing plasma generated by passing a radio frequency discharge through a siloxane whereby said siloxane is polymerized and deposited as a layer of polysiloxane on said perfluorinated polymeric surface to give a polysiloxane surface;
- and
- (b) applying to said polysiloxane surface a film of polysiloxane lubricant, said polysiloxane lubricant having a surface tension substantially the same as or less than the surface energy of said polysiloxane surface, said film thereby fully wetting said layer.
Dependencies are inferred from the claim text.