CAST STONE MATERIAL Russian patent published in 2014 - IPC C04B30/00 C03C10/06 F41H5/00 

FIELD: chemistry.

SUBSTANCE: invention relates to artificial fused silicate ceramic materials, particularly cast stone compositions, and is meant for making bulletproof armoured plates (boards) of bulletproof vests. Besides the defence industry, the invention can be used in construction, ore dressing and other industries. The disclosed stone cast material has components in the following ratio, wt %: SiO₂ 43-45; Al₂O₃ 15-16; CaO 9-17; FeO 5-8; MgO 8-9; Fe₂O₃ 3-5; TiO₂ 1-1.5; K₂O and/or Na₂O 2.5-4; Cr₂O₃ 2-2.5 and CaF₂ 1.5-2. Owing to use of cheap technologies, raw material and optimum content of additives, the stone cast material has a lower cost. Availability of dissipative properties which meet GOST R 50744-95 "Armoured garments. Classification and basic requirements" attests to its suitability for making bulletproof armoured plates of bulletproof vests.

EFFECT: obtaining material which is suitable for making bulletproof armoured plates of bulletproof vests, as well as elements which combine bulletproof properties with the capacity to scatter and absorb radioactive and infrared radiation.

3 tbl, 2 dwg