INTERLAYER FILM FOR SANDWICHED GLASS AND SANDWICHED GLASS Russian patent published in 2014 - IPC C03C27/12 B32B17/10 

FIELD: process engineering.

SUBSTANCE: invention relates to interlayer film for sandwiched glass. Proposed film is based on polyvinyl acetate resin, plasticiser and indole compound. Indole compound features the following chemical formula: (1), wherein R¹ is alkyl group containing 1-3 carbon atoms, while R² is hydrogen atom, alkyl group containing 1-10 carbon atoms, or aralkyl group containing 7-10 carbon atoms.

EFFECT: lower UV beams transmission with wavelength of 380-400 nm, high transmission of visible light and higher resistance to light effects.

9 cl, 12 tbl, 91 ex