Method for improving moisture barrier protection and electrostatic discharge protection of a composite material cased rocket motor
AssigneeThiokol Corporation
InventorsRobert E. Black, Jr., Don C. Carson, Frederick W. Van Name
Life of this patent
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Abstract
The moisture or water vapor barrier protection of a composite pressure vessel suitable for use as a composite cased solid propellant rocket motor is improved by immersing the pressure vessel, during pressure testing thereof, in a curable liquid polymer solution, optionally containing electrically conductive material such as metallic flakes or powder, so that the solution may flow into open voids, cracks or fractures in the pressure vessel and subsequently curing the curable liquid polymer in said voids, cracks or fractures.
Claims36
A method for improving the moisture barrier protection of a composite pressure vessel comprising immersing the composite pressure vessel in a curable liquid polymer solution during pressure testing of said vessel so that said curable liquid polymer solution flows into voids, cracks or fractures in said pressure vessel and subsequently curing said liquid polymer in said voids, cracks or fractures.
A method for improving the moisture barrier protection and electrostatic discharge protection of a composite pressure vessel comprising immersing the composite pressure vessel in a curable liquid polymer solution containing electrically conductive flakes or powder during pressure testing of said pressure vessel so that said curable liquid polymer solution flows into voids, cracks or fractures in said pressure vessel and subsequently curing said liquid polymer in said voids, cracks or fractures.
Dependencies are inferred from the claim text.