PUTTY Russian patent published in 2004 - IPC

FIELD: preparation of putties for internal structures of buildings.

SUBSTANCE: proposed putty contains water glass, filler and water; used as filler is clay containing calcium carbonate CaCO₃ in the amount of 2-12 % ; it is treated with soda solution Na₂CO₃ at ratio of CaCO₃ to soda equal to 1:1 and is burnt at temperature of 350 C for an hour; composition contains the following components, mass-%: water glass,15-20; clay, 55.5-65.6; soda, 1.1-7.8; water, 15-20.

EFFECT: improved physico-chemical properties.

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