申请人:MITSUBISHI ENGINEERING-PLASTICS CORPORATION
公开号:EP0753540A2
公开(公告)日:1997-01-15
A polycarbonate resin composition according to the present invention is suited to be used for medical supplies or appliances and shows a very low yellow discoloration when exposed to an ionizing radiation for sterilization. The polycarbonate resin composition comprises 100 parts by weight of a polycarbonate resin; 0.01 to 5 parts by weight of an aromatic compound containing oxy group or carbonyl group; and 0.01 to 5 parts by weight of at least one compound selected from the group consisting of: (A) a compound containing cyclic acetal group; (B) a sulfone compound; (C) a sulfoxide compound; (D) polyalkylene glycol, an ether of polyalkylene glycol or an ester of polyalkylene glycol; (E) a compound containing sulfonate group; and (F) an aromatic hydrocarbon-aldehyde resin.
根据本发明的一种聚碳酸酯树脂组合物适合用于医疗用品或器具,在暴露于电离辐射灭菌时,黄色褪色程度很低。聚碳酸酯树脂组合物包括 100 重量份的聚碳酸酯树脂;0.01 至 5 重量份的含氧基或羰基的芳香族化合物;以及 0.(A) 含环缩醛基团的化合物;(B) 砜化合物;(C) 亚砜化合物;(D) 聚亚烷基二醇、聚亚烷基二醇的醚或聚亚烷基二醇的酯;(E) 含磺酸基团的化合物;(F) 芳香烃-醛树脂。