LAYERED MATERIAL FOR MULTILAYER GLASS Russian patent published in 2013 - IPC G02B5/30 C03C27/12 C08L29/14 C08K5/103 B32B7/02 B32B17/10 

FIELD: chemistry.

SUBSTANCE: invention provides a layered material for multilayer glass, which includes an interlayer film for multilayer glass laminated with a retarding element placed between an adhesive layer A and an adhesive layer B, where the retarding element contains a liquid crystal compound and at least one compound selected from a group consisting of a compound of formula (1), a compound of formula (2) and a compound of formula (3) given below. In formula (1), n is an integer from 3 to 10, a R² is a -CH₂-CH₂-, -CH₂-CH(CH₃)- or -CH₂-CH₂-CH₂- group. In formula (2), R³ is a -(CH₂)_P- group or a phenylene group and p is an integer from 4 to 8. In formula (3), R⁴ is a substituted phenylene group. R^1-1, R^1-2 and R^1-3 in formulae (1)-(3) are identical or different, each representing an alkyl group having a branched structure and containing at least 5 carbon atoms. [Formula 1].

EFFECT: providing a layered material for multilayer glass which demonstrates excellent heat resistance, small changes in retardation values in high-temperature gaseous media and can maintain stable optical properties.

11 cl, 2 tbl, 16 ex