INTERLAYER FILM FOR LAMINATED GLASS AND LAMINATED GLASS Russian patent published in 2020 - IPC C03C27/12 B32B17/10 B60J1/00 B60J1/02 

FIELD: glass.

SUBSTANCE: invention relates to laminated glass and interlayer film for it. Interlayer film for laminated glass according to the invention has a machine direction (MD) and a transverse direction (TD), and also has one end and the other end located on the opposite side from said one end and having thickness that is greater than thickness of first end, wherein said one end and the other end are located respectively on both sides in the TD direction of the interlayer film, and when distance between said one end and other end is defined as X, absolute value of difference between maximum coefficient of thermal shrinkage from three coefficients of thermal shrinkage from first coefficient of thermal shrinkage at 150 °C in MD direction in first position spaced from one end by 0.05X towards other end, of second coefficient of thermal shrinkage at 150 °C in direction MD in second position, spaced from one end by 0.5X towards other end, and third coefficient of thermal shrinkage at 150 °C in the MD direction in the third position, one end at 0.95X towards the other end, and the smallest thermal shrinkage coefficient of these three thermal shrinkage coefficients is 15 % or less.

EFFECT: technical result is suppression of folding on interlayer film.

13 cl, 10 dwg, 1 tbl