Method of producing a layer of a vulcanized silicone rubber composition having an improved adhesion to the substrate surface
AssigneeABB Research Ltd.
InventorsJan Van Loon, Marco Schneider, Patrick Meier, Xavier Kornmann
Life of this patent
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Abstract
A method of producing a layer of a UV-cured silicone rubber composition on a substrate surface, including applying a primer composition to the substrate surface and hardening the primer composition followed by applying a UV-curable silicone rubber composition, and UV-curing the curable silicone rubber composition. At least one UV-sensitive crosslinking catalyst selected from compounds which initiate and promote curing of UV-curable silicone rubber compositions, is added to the silicone primer composition in any desired sequence before, during or after hardening of the silicone primer composition.
Claims27
A method of producing a layer of a UV-cured silicone rubber composition on a substrate surface to obtain an electrical insulator, the method comprising:
- applying a silicone primer composition comprising at least one UV-sensitive crosslinking catalyst to the substrate surface,
- followed by applying a UV-curable silicone rubber composition on the silicone primer composition, and UV-curing said UV-curable silicone rubber composition,
- wherein the at least one UV-sensitive crosslinking catalyst initiates and promotes curing of the UV-curable silicone rubber composition,
- wherein the UV-sensitive crosslinking catalyst is formed from at least one metal selected from the group consisting of iron, ruthenium, osmium, cobalt, rhodium, iridium, nickel, palladium and platinum.
A method of producing an electrical insulator in a form of a layer of a vulcanized silicone rubber composition on a substrate surface, the method comprising:
- applying a silicone primer composition comprising at least one UV-sensitive crosslinking catalyst to the substrate surface,
- followed by applying a UV-curable curable silicone rubber composition on the silicone primer composition, and curing said UV-curable curable silicone rubber composition, to obtain an electrical insulator,
- wherein the at least one UV-sensitive crosslinking catalyst initiates and promotes vulcanization of the UV-curable silicone rubber composition,
- wherein the UV-sensitive crosslinking catalyst is formed from at least one metal selected from the group consisting of iron, ruthenium, osmium, cobalt, rhodium, iridium, nickel, palladium and platinum.
Dependencies are inferred from the claim text.