INTERLAYER FOR LAMINATED GLASS Russian patent published in 2014 - IPC C03C27/12 C08L29/14 C08K5/00 C08G63/00 B32B17/06 

FIELD: chemistry.

SUBSTANCE: invention relates to interlayer film for laminated glass and laminated glass, which contains claimed film. Interlayer film for laminated glass includes soundproof layer, for which temperature T1, which is the temperature giving maximal value of tangent δ at frequency 1 Hz, lies in the range from -30°C to 0°C. Soundproof layer contains 71-160 wt.p. of plasticiser relative to 100 wt.p. of polyvinyl acetal resin, which has 3 or 4 carbon atoms in acetal group, or 50-80 wt.p. of plasticiser relative to 100 wt.p. of polyvinyl acetal resin, which has 5-12 carbon atoms in acetal group. Laminated glass contains claimed interlayer film, placed between two transparent sheets.

EFFECT: obtaining interlayer film for laminated glass and based on it laminated glass, which ensures soundproof action for solid-induced sound in the environment at 0°C or lower temperature.

12 cl, 7 tbl, 53 ex