申请人:Givaudan Corporation
公开号:US05011628A1
公开(公告)日:1991-04-30
Substituted benzamidines and their hydrochloride salts are useful as ultraviolet light absorbers, the benzamidines having the formula ##STR1## wherein: A.sup.1 and A.sup.2 may be the same or different and represent --COOR.sup.1, --CONR.sup.1 R.sup.2, --C.tbd.N or --C.sub.6 H.sub.5 ; A.sup.3 represents --H, --OH, --OR, --Cl, --NO.sub.2, --C.tbd.N, --C.sub.6 H.sub.5, or an alkyl group of one to five carbon atoms; R.sup.1 and R.sup.2 may be the same or different and represent hydrogen or an alkyl group of one to ten carbon atoms; and, R represents an alkyl group of one to ten carbon atoms.
苯甲酰胺及其盐酸盐可用作紫外光吸收剂,其中苯甲酰胺具有以下结构式:##STR1## 其中:A.sup.1和A.sup.2可以相同也可以不同,代表--COOR.sup.1,--CONR.sup.1 R.sup.2,--C.tbd.N或--C.sub.6 H.sub.5;A.sup.3代表--H,--OH,--OR,--Cl,--NO.sub.2,--C.tbd.N,--C.sub.6 H.sub.5或含有一至五个碳原子的烷基基团;R.sup.1和R.sup.2可以相同也可以不同,代表氢或含有一至十个碳原子的烷基基团;R代表含有一至十个碳原子的烷基基团。