A photopo1ymerisation process for the production of mouldings from methacrylate casting resins wherein 1) a methacrylate casting resin formulation containing (A1)>50% methyl methacrylate and/or a prepolymerisate containing a high proportion of methyl methacrylate, (A2) 0 to 40% other monomers than can be copolymerised with methyl methacrylate, (B) 0.1 to 10% at least one mono- or bis-acyiphosphine oxide photoinitiator, C) 0 to 10% other photoinitiators, D) 0 to 5% thermal initiators and E) optionally further customary additives is cast in a mould and 2) is fully cured by irradiation with a light source in the range of from 200 to 800 nm to form a mechanically stable moulding.
一种用
甲基丙烯酸酯浇注
树脂生产模塑件的光聚合工艺,其中 1) 一种
甲基丙烯酸酯浇注
树脂配方,含有 (A1)>50% 的
甲基丙烯酸甲酯和/或含有高比例
甲基丙烯酸甲酯的预聚物,(A2) 0 至 40% 可与
甲基丙烯酸甲酯共聚的其他单体,(B) 0.1 至 10% 至少一种单-或双-氧化膦光
引发剂,C) 0 至 10% 其他光
引发剂,D)0 至 5%的热
引发剂,以及 E)可选的其他惯用添加剂,浇铸在模具中,2)通过 200 至 800 纳米范围内的光源照射完全固化,形成机械稳定的模塑。