Abstract: The invention relates to a sizing composition for a thermal and/or acoustic insulation product, based on mineral wool, comprising an epoxy resin of the glycidyl ether type, an amine hardener and an accelerator chosen from imidazoles, imidazolines and mixtures thereof. Application to the manufacture of thermal and/or acoustic insulation products having improved mechanical properties after aging, especially in a wet environment.

Abstract: The invention relates to a thermal and/or acoustic insulation product based on mineral fibers for use above 150° C., especially between 200 and 500° C., or even up to 700° C. and higher in the case of rock fibers, which comprises at least 1%, or at least 2% and even more than 4% by weight of binder obtained from a sizing composition, the resin or resin mixture of which consists substantially of at least one epoxy-type resin whose EEW value is between 150 and 2000, preferably at least 160 and/or at most 700, or even at least 170 and/or at most 300.

Abstract: One subject of the invention is a process for obtaining mineral wool comprising mineral fibres and an organic binder, in which process said mineral fibres are formed and said organic binder is added on at least part of the surface of said mineral fibres, characterized in that a compound is furthermore added to at least one part of the surface of said mineral fibres, said compound comprising at least one resin acid or resin acid derivative and also a water-repellent agent. The subject of the invention is also a mineral wool that can be obtained by this process.

Abstract: In order to improve the mechanical strength after ageing, particularly in a wet medium, of an insulation product, especially a thermal and/or acoustic insulation product, based on mineral wool provided with a size, a latex is incorporated in the sizing composition which contains especially a phenolic resin. The presence of the latex allows the loss of mechanical performance after ageing to be very considerably reduced. The sizing composition advantageously comprises a latex based on an aqueous dispersion or emulsion of a polymer phase carrying hydrophilic functional groups. Application to the manufacture of insulation products intended to be exposed to atmospheric condensation and/or based on mineral wool of lower hydrolytic resistance.

Abstract: The invention relates to a sizing composition for a thermal and/or acoustic insulation product, based on mineral wool, comprising an epoxy resin of the glycidyl ether type, an amine hardener and an accelerator chosen from imidazoles, imidazolines and mixtures thereof. Application to the manufacture of thermal and/or acoustic insulation products having improved mechanical properties after aging, especially in a wet environment.

Abstract: The invention relates to a thermal and/or acoustic insulation product based on mineral fibers for use above 150° C., especially between 200 and 500° C., or even up to 700° C. and higher in the case of rock fibers, which comprises at least 1%, or at least 2% and even more than 4% by weight of binder obtained from a sizing composition, the resin or resin mixture of which consists substantially of at least one epoxy-type resin whose EEW value is between 150 and 2000, preferably at least 160 and/or at most 700, or even at least 170 and/or at most 300.

Abstract: Insulating product based on mineral wool sized with a binder based on a phenol-formaldehyde resin, in which the binder comprises, as a mixture: 60 to 90 parts by weight of a phenol-formaldehyde resol having a free formaldehyde content of less than or equal to 25% by weight with respect to the dry weight of resin and a free phenol content of less than or equal to 2.5% by weight with respect to the dry weight of resin, obtained by condensation in basic medium of phenol (P) and formaldehyde (F) in an F/P molar ratio of around 2.5 to 4 until the condensation product neutralized by sulphuric acid has a water dilutability of greater than 500% and less than or equal to 1500%; 10 to 40 parts by weight of urea. Use of such a sizing composition for manufacturing insulating products, while reducing the emissions of ammonia gas on the manufacturing line.

Abstract: Insulating product based on mineral wool sized with a binder based on a phenol-formaldehyde resin, in which the binder comprises, as a mixture:

Abstract: A sizing composition which is a phenol-formaldehyde resin substantially free of urea or of a urea derivative and which has reduced emissions of isocyanates upon heating. Insulation products based on mineral wool, especially glass wool or rock wool, which are suitable for mass-produced thermal appliances and contain the sizing composition have reduced organic emissions during manufacturing and when used in thermal appliances.