申请人:Bayer Aktiengesellschaft
公开号:US04071466A1
公开(公告)日:1978-01-31
Pyrazoline compounds of the formula ##STR1## wherein R represents C.sub.3 -C.sub.20 -alkyl and X, Y and Z independently of one another represent hydrogen, halogen, C.sub.1 -C.sub.4 -alkyl, trifluoromethyl, C.sub.1 -C.sub.4 -alkoxy, aryl or acylamino, are useful as optical brighteners for macromolecular materials.
该文中提到的吡唑啉化合物的公式为##STR1## 其中R代表C.sub.3 -C.sub.20-烷基,X、Y和Z相互独立地代表氢、卤素、C.sub.1-C.sub.4-烷基、三氟甲基、C.sub.1-C.sub.4-烷氧基、芳基或酰胺基。这些化合物可用作大分子材料的光亮剂。