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

1989-12-14

1991-04-09

Lindsay, Robert L.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 34, 65 341, 65 44, 106210, 524734, C03C 2502

Patent

active

050061402

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 disperion of a binder and the fibres are dried at an elevated temperature, the binder comprising a gelatinized starch sulphamate product and a hydrophobic agent such as a silicone. The gelatinized 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 pregelatinized starch and a sulphamate salt. In this latter case part of the pregelatinized starch may be replaced by native starch.

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Kirk Othmer, Encyclopedia of Chemical Technology, vol. 10, pp. 565, 566.
A. I. Sheyanova et al., Chemical Abstracts, vol. 101, No. 10, Sep. 1984, p. 301, 101:77655d.
Other Pub/European Search Report 89312889, Jan. 3, 1990.

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