Substrate which is protected against organic pollution
AssigneeSaint-Gobain Glass France
InventorsRonan Garrec, Rino Messere
Life of this patent
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Abstract
The invention relates to a substrate (1) which is equipped with a mastic (3) along at least part of the periphery thereof, said mastic comprising silicon-type components. The invention is characterised in that a barrier to the migration of the silicons (5, 7, 8) is disposed on the surface (2) of the substrate (1).
Claims9
A substrate (1) having, on at least one part of its periphery, a mastic (3) comprising silicone-type components, characterized in that a barrier to the migration of the silicones (5, 7, 8) is placed on the surface (2) of said substrate (1).
The substrate (1) as claimed in the preceding claim, characterized in that said thin film (6) is a coating that imparts a pronounced hydrophilic character such as a coating comprising at least partially crystalline titanium oxide, especially in anatase form.
The substrate (1) as claimed in one of the preceding claims, characterized in that the barrier to the migration of the silicones (5) is based on a polymer, preferably an elastomeric mastic that does not comprise any silicone-based plasticizers.
The substrate (1) as claimed in the preceding claim, characterized in that the polymer acting as a barrier (5) is deposited in the form of a bead on the surface (2) of said substrate (1), in direct contact with the mastic (3) comprising silicone-type compounds.
The substrate (1) as claimed in one of the preceding claims, characterized in that the elastomeric mastic (5) acting as a barrier to the migration of the silicones is based on MS polymer (silyl-terminated polyether).
Dependencies are inferred from the claim text.