SHEET GLASS Russian patent published in 2011 - IPC C03C27/12 B32B17/10 

FIELD: chemistry.

SUBSTANCE: invention relates to multilayer sheet glass. The multilayer sheet glass has an inner glass layer and an outer glass layer, joined by a transparent intermediate layer. The intermediate layer is 0.76 mm thick and the glass is 2.1 mm thick. Each glass sheet has light transmission of over 88% (light source A International commission on illumination (ICI)). The obtained sheet glass has light transmission (light source A International commission on illumination (ICI)) less than 40%; energy transmission (ISO9050:E(2003) air mass 1.5) less than 45% and sound transmission loss greater than 40 dB in an interval from 3000 to 4000 Hz at 21°C.

EFFECT: high sound insulation of the multilayer glass with reduction of light and energy transmission.

25 cl, 2 tbl, 7 dwg