FORMALDEHYDE-FREE BINDER

摘要

Composition, comprises an aqueous dispersion of at least a polymeric polycarboxylic acid; at least an amine compound (I); and an activated silane, which is obtained by reacting a silane compound e.g. mono-, di- and tri- 1-8C-alkoxysilanes (with 2-10C aminoalkyl group or 2-10C N-aminoalkyl groups) with an enolic 3-12C-ketone with carbonyl or hydroxy group. Composition, comprises an aqueous dispersion of at least a polymeric polycarboxylic acid; at least an amine compound (I) of formula ((R2)(R3)N-(CH 2) n-O-R1) having a molecular weight of less than 20000 g/mol; and an activated silane, which is obtained by reacting a silane compound such as mono-, di- and tri- 1-8C-alkoxysilanes (with 2-10C aminoalkyl group or 2-10C N-aminoalkyl groups), 3-(2-aminoethylamino)propyl trimethoxysilane, bis-(3-trimethoxysilanyl-propyl)-amine, 3-aminopropylsilane triol, aminosilane with ethoxylated nonylphenolate and/or N-benzyl-N'-(3-trimethoxysilyl-propyl)-propane-1,3-diamine hydrochloride, with an enolic 3-12C-ketone with carbonyl or hydroxy group. R2, R3 : H or -[(CH 2) n-O] m-R1; R1 : H or -(CH 2) n-N(R2)(R3); n : 2-10; and m : 1-50. Independent claims are included for: (1) a binding agent for mineral wool, comprising the composition; (2) a method for the preparation of a formaldehyde free bounded mineral wool with a binding agent comprising applying the binding agent on the hot fibers of the defibered mineral melt and hardening the binded impinged mineral wool product; and (3) a bounded mineral wool product, obtained by the process.