Method of producing a self-healing membrane
AssigneeProspective Concepts AG
InventorsRolf Luchsinger, Thomas Speck, Olga Speck
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Abstract
The invention relates to a membrane that heals on its own after being damaged mechanically as well as a method for producing said membrane which is used for pneumatic structures featuring an internal operating pressure of 10 mbar to 500 mbar. The inventive membrane is provided with a plastic layer on the pressure side, said plastic layer being interspersed with blisters that have a diameter ranging from 10μ to 200μ.
Claims15
A method of producing a self-healing membrane of a type for compressed-gastight sealing of a pressurized pneumatic structure having an excess pressure in an order of 10 to 500 mbar, the method comprising:
- applying a layer of a polymerizable plastic to an interior side of an envelope, the envelope comprising a gastight membrane, and containing a compressed gas;
- polymerizing the layer of polymerizable plastic under pressure, the polymerizing forming a plurality of air or gas bubbles in the layer of polymerizable plastic;
- and
- wherein air or gas bubbles, suspended in the layer of polymerizable plastic, and formed by the polymerizing step, are not removed by a vacuum treatment.
Dependencies are inferred from the claim text.