Sizing composition for mineral fibers and resulting products

Details Sizing composition for mineral fibers and resulting products Sizing composition for mineral fibers and resulting products

C - Chemistry, Metallurgy

03

C

C03C 25/34 (2006.01) C03C 25/14 (2006.01) C08K 5/04 (2006.01) C08K 5/16 (2006.01) C08K 5/17 (2006.01) C08K 5/544 (2006.01) C08L 61/10 (2006.01) C08L 61/34 (2006.01) C09J 161/06 (2006.01) C09J 161/10 (2006.01) C09J 161/14 (2006.01) C09J 161/34 (2006.01) E04B 1/74 (2006.01)

Patent

CA 2720924

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 of less than or equal to 0.1% by total weight of liquid and an extender. The liquid phenolic resin is preferably mainly composed of condensates of phenol-formaldehyde and of phenol-formaldehyde-amine and has a water dilutability, at 20°C, at least equal to 1000%. Another subject of the invention is the insulating products based on mineral fibers treated with said sizing composition.

La présente invention se rapporte à une composition d'encollage pour fibres minérales, notamment de verre ou de roche, contenant une résine phénolique liquide présentant un taux de formaldéhyde libre inférieur ou égal à 0,1 % en poids total de liquide et un extendeur. La résine phénolique liquide est de préférence constituée essentiellement de condensats de phénol-formaldéhyde et de phénol- formaldéhyde-amine et présente une diluabilité à l'eau, à 200C, au moins égale à 1000 %. Elle a également pour objet les produits isolants à base de fibres minérales traitées par ladite composition d'encollage.

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