TRANSPARENT PLASTIC PANEL FOR AIRCRAFT WINDOWS Russian patent published in 2001 - IPC

FIELD: aircraft windows. SUBSTANCE: transparent plastic panel includes methyl methacrylate copolymer, cross-linking agent on base of acrylate and ultraviolet absorber; final polymerization is effected at 110 to 130 C for at least 5 hours followed by biaxial drawing; copolymer includes methyl methacrylate in the amount of ≥ 95 % of mass of copolymer and cross-linking agent in form of diol or polyol diacrylate, triacrylate and tetraacrylate in the amount of 0.5 to 5% of copolymer mass. EFFECT: enhanced transparency and light fastness, heat and chemical stability. 9 cl, 1 tbl, 1 ex