Film for construction and film combination
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United States of America Patent
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Jul 8, 2014
Grant Date -
Sep 2, 2010
app pub date -
Sep 24, 2008
filing date -
Sep 26, 2007
priority date (Note) -
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Abstract
A film (1) for construction with at least one functional layer (2) and optionally at least one other layer, especially a carrier layer and/or reinforcing layer (3), the functional layer (2) having a water vapor diffusion resistance (sd value) that is dependent on the ambient humidity. The functional layer (2) has at least one material (4) that can be obtained from a renewable raw material, especially at least one polymer based on a renewable raw material.
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