ACOUSTIC GLASING Russian patent published in 2012 - IPC C03C27/12 B32B17/10 

FIELD: chemistry.

SUBSTANCE: invention relates to acoustic glasing. The acoustic glasing contains a first glass layer, at least one polymer interlayer, a second glass layer, a layer of plastic material and third glass layer. The polymer interlayer is based on material with improved sound vibration damping properties, and particularly at temperature 20°C and frequency 200 Hz the loss factor tanδ is greater than or equal to 0.6, and the modulus of elasticity G' is less than 2·10⁷ N/m². The weight of the first glass layer lying on one side of the polymer interlayer is not less than 20% of the total weight of the glasing, and the total weight of other elements lying on the other side of the polymer interlayer is also not less than 20% of the total weight of the glasing.

EFFECT: high sound-insulation of the glasing.

14 cl, 3 dwg