Method for producing sound insulation
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United States of America Patent
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Issued Date -
Aug 29, 2024
app pub date -
Feb 23, 2024
filing date -
Feb 23, 2023
priority date (Note) -
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Abstract
A method for producing a sound insulation for a motor vehicle includes the steps: Positioning a nonwoven layer and a wear layer into steam/vacuum tool such that a flow-closed side faces the nonwoven layer, wherein the nonwoven layer has a binding element and in particular a binding fiber; Close the steam/vacuum tool and apply a vacuum to the upper tool and/or lower tool; Applying steam or hot air to the underside of the nonwoven layer; and Reduction of the steam or hot air pressure through a lower pressure on the wear layer side compared to the pressure on the underside of the nonwoven layer.
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