LAMINATED GLASS INTERLAYER AND LAMINATED GLASS Russian patent published in 2018 - IPC C03C27/12 B32B3/30 

FIELD: layered products.

SUBSTANCE: invention relates to an interlayer film for laminated glass. Film comprises at least two polymer layers laminated together and has a plurality of recesses and protrusions on at least one surface. Recesses are in the form of a groove with a continuous bottom and are disposed adjacent and parallel to each other. Groove depth (Rzg), determined in accordance with the Japanese industry standard JIS B-0601 (1994), is 10 to 40 mcm. Recess has a first spacing with an adjacent recess on one side and a second spacing with an adjacent recess on the other side, which differ from each other by more than 50 mcm. Interval between the recesses is 1000 mcm or less.

EFFECT: technical result is improvement of degassing properties in the production process of laminated glass and prevention of appearance of ghost images.

6 cl, 2 tbl, 3 dwg