申请人:Fairmount Chemical Company, Inc.
公开号:US05362881A1
公开(公告)日:1994-11-08
Provided are ultraviolet stabilizers which are diphenylmethane compounds of the formula: ##STR1## wherein: R.sub.1 and R.sub.2 are independently C.sub.1 to C.sub.8 alkyl, cyclopentyl, cyclohexyl or cumyl; and X is selected from the group consisting of hydrogen, halogen, C.sub.1 to C.sub.12 alkyl and C.sub.1 to C.sub.12 alkoxy. The invention also pertains to a process for their preparation and stabilized polymer blends containing the stabilizers.
提供的是二苯甲烷化合物紫外线稳定剂,其化学式为:##STR1## 其中:R.sub.1 和 R.sub.2 独立地是 C.sub.1 到 C.sub.8 烷基,环戊基,环己基或叔丁基;X 选自氢,卤素,C.sub.1 到 C.sub.12 烷基和 C.sub.1 到 C.sub.12 烷氧基的组。该发明还涉及一种它们的制备方法和含有这些稳定剂的稳定聚合物混合物。