SIZING COMPOSITION FOR MINERAL FIBERS AND RESULTING PRODUCTS
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United States of America Patent
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Issued Date -
May 5, 2011
app pub date -
Apr 10, 2009
filing date -
Apr 11, 2008
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Abstract
The present invention relates to a sizing composition for mineral fibers, especially glass fibers or rock fibers, containing a liquid phenolic resin having a free formaldehyde content, expressed with respect to the total weight of liquid, of 0.1% or less and an extender.Preferably, the liquid phenolic resin is mainly composed of phenol-formaldehyde and phenol-formaldehyde-amine condensates and has a water dilutability, at 20° C., at least equal to 1000%.Another subject of the present invention is the insulating products based on mineral fibers treated by said sizing composition.
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