An ultraviolet light-absorbing oligomer that includes a first divalent unit represented by formula (I): and a second divalent unit represented by formula (II): Each R
1
is independently hydrogen or methyl; V is O or NH; X is bond or X is alkylene or alkyleneoxy group having from 1 to 10 carbon atoms and optionally interrupted by one or more —O— groups and optionally substituted by a hydroxyl group; and R2 is alkyl having from 1 to 22 carbon atoms. Compositions that include fluoropolymers and the oligomers are disclosed. The composition can be an extruded film. Compositions that include pressure sensitive adhesives and these oligomers are disclosed.
一种包括由式(I)表示的第一二价单元和由式(II)表示的第二二价单元的紫外光吸收寡聚物:每个R1独立地是
氢或
甲基;V为O或NH;X为键或X为含有1至10个
碳原子的烷基或烷
氧基团,并且可以被一个或多个—O—基团中断,并且可以被一个羟基取代;R2是具有1到22个
碳原子的烷基。公开了包括
氟聚合物和这些寡聚物的组合物。该组合物可以是挤压薄膜。公开了包括压敏胶粘剂和这些寡聚物的组合物。