Method for packaging silicone compounds
AssigneeWacker Chemie AG
InventorsUwe Scheim, Peter Schoeley
Life of this patent
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Abstract
Silicone-containing cartridges having a plunger at one end thereof are effectively sealed against moisture penetration by introducing a silicone oil composition having a viscosity of from 5000 mPa·s to 100,000 mPa·s between the walls of the plunger and the interior surface of the cartridge wall.
Claims9
A process for packaging silicone compositions in a cylindrical container having an inner wall which is sealed with a plunger having an outer surface which bears against the inner wall of the cylindrical container, comprising:
- introducing, in a gap between the inner wall of the cylindrical container and the outer surface of the plunger, a composition comprising one or more silicone polymers (A), the composition having a viscosity of 5000 mPas to 100,000 mPas, measured at 25° C.;
- introducing a curable silicone composition into the cylindrical container;
- and
- sealing the cylindrical container, now containing the curable silicone composition, with the plunger.
A cylindrical container filled with a curable silicone composition, wherein in a gap between an inner wall of the cylindrical container and an outer surface of a plunger with which said container is sealed, there is a silicone polymer composition having a viscosity of 5000 mPas to 100,000 mPas, measured at 25° C.
Dependencies are inferred from the claim text.