PHENOLIC RESIN, METHOD OF PREPARATION , SIZING COMPOSITION FOR MINERAL FIBRES, AND RESULTING PRODUCTS
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United States of America Patent
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Issued Date -
Jan 7, 2010
app pub date -
Oct 11, 2007
filing date -
Oct 11, 2006
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Abandoned
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Abstract
The present invention relates to a liquid phenolic resin, intended to be used in the formulation of a sizing composition for mineral fibres, essentially consisting of phenol-formaldehyde and phenol-formaldehyde-amine condensates and having a water dilutability at 20° C. of at least 1000%, and it has a free formaldehyde content of 0.1% or less, this content being expressed with respect to the total weight of liquid.The subject of the invention is also a method of manufacturing said resin, the sizing composition containing the resin and the insulating products based on mineral fibres sized by means of the aforementioned sizing composition.
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