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US 6,805,914 B2Granted
Silicone coatings containing silicone mist suppressant compositions
AssigneeDow Corning Corporation
InventorsJoseph Norbert Clark, Robert Alan Ekeland, Michael Sean Owens, Paul Cornelius Van Dort
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Abstract
This invention relates to silicone coating composition comprising a solventless silicone coating composition and a liquid silicone mist suppressant composition obtained by a method comprising reacting a large excess of at least one organohydrogensilicon compound containing at least three silicon-bonded hydrogen groups with at least one compound containing at least two alkenyl groups in the presence of a platinum group metal-containing catalyst.
Claims2
A method of making a cured coating, the method comprising the steps of:
- (I) adding a liquid silicone mist suppressant composition having a viscosity of from 150 to 50,000 millipascal-seconds (1 millipascal second=1 centipoise) obtained by a method comprising mixing:
- (a) at least one organohydrogensilicon compound containing at least three silicon-bonded hydrogen groups per molecule, (b) at least one compound containing at least two alkenyl groups per molecule, and (c) a platinum group metal-containing catalyst which is present in an amount sufficient to provide 0.1 to 10 weight parts of platinum per million weight parts of (a)+(b), with the proviso that the ratio of the number of silicon-bonded hydrogen atoms of Component (a) to the number of alkenyl groups of Component (b) is at least 4.6:1 to a solventless silicone coating composition;
- (II) coating the mixture from (I) on the surface of a substrate;
- and
- (III) exposing the coating and the substrate to an energy source selected from the group consisting of (i) heat and (ii) actinic radiation in an amount sufficient to cure the coating.
2 more elements
Dependencies are inferred from the claim text.