COMPOSITE Russian patent published in 2000 - IPC

FIELD: composites. SUBSTANCE: invention relates to developing inorganic fibrous materials that can find different applications, for instance as filtration materials for hot gases and liquid media, as heat- and sound-insulation materials, and as constructive materials in various areas. Composite contains pierced by basalt roving outer envelope made from basalt cloth or mesh and internal layer of basalt fibers with diameter 1 to 20 mcm and/or basalt board 1-5 mm thick, weight ratio of internal layer to outer envelope ranging from 5: 1 to 50:1. EFFECT: improved heat- and sound-insulation and filtration characteristics. 3 ex