COMPOSITION FOR PRODUCTION OF THE PLEXIGLAS

FIELD: chemical industry; aircraft industry; other industries; compositions for production of the Plexiglas. ^ SUBSTANCE: the invention is pertaining to production by the method of the block radical polymerization of the sheet Plexiglas on the basis of the copolymers of the methylmetacrylate () for manufacture of the details for the glazing of the flying vehicles. The technical result of the invention is the increased thermostability of the Plexiglas at conservation of its capability of the orientation and molding with elongation of no less than by 100 %. The invention presents the composition including per 100 mass shares of the MMA or its mixtures with other methacrylic monomer, 1.0-4.0 mass shares of triallylisocyanurate, 0.004-0.1 mass shares of peroxidicarbonate and 0.1-0.5 mass shares of tretbutylperbenzoate. The presented composition may contain the mixture of MMA with 10.0-20.0 mass % of the methacrylic acid or the mixture of and 10.0-20.0 mass % of the methacrylic acid and 15.0-25.0 mass % of 4-chlorophenylmethacrylate or cyclohexylmethacrylate. The mixture may additionally contain 0.005-0.25 mass shares of the UV-stabilizer, 0.005-0.5 mass shares of the UV-absorber and 0.01-1.0 mass shares of the lubricant. ^ EFFECT: the invention ensures the increased thermostability of the Plexiglas at conservation of its capability of the orientation and molding with elongation of no less than by 100 %. ^ 3 cl, 23 ex, 1 tbl