| 摘要 |
The present invention relates water-soluble hindered amine compounds of the general formula (I): wherein G<SUB>1 </SUB>and G<SUB>2 </SUB>are independently alkyl of 1 to 4 carbon atoms or are together pentamethylene; Z<SUB>1 </SUB>and Z<SUB>2 </SUB>are each methyl, or Z<SUB>1 </SUB>and Z<SUB>2 </SUB>together form an unsubstituted linking moiety or a linking moiety substituted by one or more groups selected from an ester, ether, hydroxy, oxo, cyanohydrin, amide, amino, carboxy or an urethane group; E is alkoxy of 1 to 18 carbon atoms, cycloalkoxy of 5 to 12 carbon atoms or aralkoxy of 7 to 15 carbon atoms, or E is -O-T-(OH)<SUB>b</SUB>; T is a straight or branched chain alkylene of 1 to 18 carbon atoms, cycloalkylene of 5 to 18 carbon atoms, cycloalkenylene of 5 to 18 carbon atoms, a straight or branched chain alkylene of 1 to 4 carbon atoms substituted by phenyl or by phenyl substituted by one or two alkyl groups of 1 to 4 carbon atoms; b is 1, 2 or 3 with the proviso that b cannot exceed the number of carbon atoms in T, and when b is 2 or 3, each hydroxyl group is attached to a different carbon atoms of T; and, HY is an inorganic or organic acid; and, wherein the total charge of cations is equal to the total charge of anions. |
