INTERMEDIATE FILM FOR LAMINATED GLASS AND LAMINATED GLASS Russian patent published in 2018 - IPC C03C27/12 B32B17/10 

FIELD: manufacturing procedure.

SUBSTANCE: invention relates to an interlayer film for laminated glass. Interlayer film is prepared by mixing a first composition comprising a first thermoplastic resin having a hydroxyl group and a plasticizer, and a second composition comprising a second thermoplastic resin having a hydroxyl group and a plasticizer. Relative content of the hydroxyl group in the first thermoplastic resin is higher than the relative content of the hydroxyl group in the second thermoplastic resin. Ratio of complex viscosity at a temperature of 200 °C of the second composition to complex viscosity at a temperature of 200 °C of the first composition is less than 4.5. In another embodiment, the ratio of complex viscosity at a temperature of 200 °C of the second composition obtained by mixing 100 parts by weight of a second thermoplastic resin and 60 parts by weight of triethylene glycol di-2-ethylhexanoate, to complex viscosity at a temperature of 200 °C of the first composition obtained by mixing 100 parts by weight of the first thermoplastic resin and 40 parts by weight of triethylene glycol di-2-ethylhexanoate is less than 4.5, respectively.

EFFECT: increase the transparency of the film.

18 cl, 3 dwg, 2 tbl