Method for constructing composite building boards using dissolvable films
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United States of America Patent
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Nov 8, 2016
Grant Date -
Nov 14, 2013
app pub date -
Apr 1, 2013
filing date -
Jun 7, 2010
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Abstract
Disclosed are building board manufacturing techniques that minimize the build-up of slurry on associated forming equipment and also produce panels with enhanced physical properties. The methods involve applying a dissolvable film laminate to one or more fiber mats at the outset of the forming process. In the un-dissolved state, the film acts as a containment envelope for the gypsum slurry and any free floating glass fibers. During subsequent curing, the film is dissolved by vaporized water. In its dissolved state, the film is liquefied and coats the fibers of the underlying mat. This results in a building board with improved physical properties.
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