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US 5,494,756 AGranted
Method for wet chemical surface modification of formed polysiloxane products and coated substrates silicones
AssigneeGeneral Electric Company
InventorRolf Siegel
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Abstract
A procedure is described for wet chemical surface modification of formed articles and substrates coated with made of organopolysiloxanes: the articles formed were contacted with metal hydroxide solutions to tailor the binding capacity for ions, particularly metal ions, bivalent cations, organic macro anions, and organic macro cations, e.g. proteins. The procedure creates organopolysiloxane surfaces which are better wettable, have reduced surface resistance, are less sticky, are smoother and more biocompatible.
Claims30
A method for modifying the surface of an organopolysiloxane article comprising:
- 1)contacting the surface of the article with a solution or suspension of a metal hydroxide whereby the surface becomes charged and
- 2) contacting the surface with an ion-containing solution or suspension.
Dependencies are inferred from the claim text.