Process for the manufacture of mineral fibre compositions

Details Process for the manufacture of mineral fibre compositions Process for the manufacture of mineral fibre compositions

C - Chemistry, Metallurgy

03

B

49/8.9

C03B 37/01 (2006.01) C03B 37/10 (2006.01) C03C 13/06 (2006.01) C03C 25/32 (2006.01) C08B 31/00 (2006.01)

Patent

CA 2004977

Process for the Manufacture of Mineral Fibre Compositions Abstract A process for the production of a glass or other mineral fibre composition in which glass or other mineral fibre is melted, the molten glass or mineral is forced through a plurality of openings to produce fibres, the hot fibres are sprayed with a water dispersion of a binder and the fibres are dried at an elevated temperature, the binder comprising a gelatinised starch sulphamate product and a hydrophobic agent such as a silicone. The gelatinised starch sulphamate may be preformed by reacting a starch with a sulphamate salt or may be formed in situ by spraying onto the hot fibres a water dispersion of pregelatinised starch and a sulphamate salt. In this latter case part of the pregelatinised starch may be replaced by native starch.

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