（甲基）丙烯酸树脂组成物之制造方法;METHOD FOR PRODUCING (METH) ACRYLIC RESIN COMPOSITION

摘要

本发明提供一种(甲基)丙烯酸树脂组成物，其系依据具有下述步骤之方法而得者，该步骤系调制含有甲基丙烯酸甲酯、丙烯酸烷酯及链转移剂且溶氧浓度为50ppm以下之原料液(A)，其中，丙烯酸烷酯/甲基丙烯酸甲酯之质量比为0/100~20/80；调制含有自由基聚合起始剂、聚合抑制剂及甲基丙烯酸甲酯，且在氧存在下液温维持在10℃以下之原料液(B)；将原料液(A)及原料液(B)连续地供给至槽型反应器中，在槽型反应器内以聚合转化率40~70质量%进行块状聚合，得到反应生成物。; preparing a material solution (B) comprising a radical polymerization initiator, a polymerization inhibitor and methyl methacrylate, and maintained at a liquid temperature of not more than 0 ℃; continuously feeding the material solution (A) and the material solution (B) to a tank reactor; and performing bulk-polymerization at a polymerization conversion of 40 to 70 % by mass in the tank reactor to obtain a reaction product.