Patent ID: 6251173
Filing Date: 2001-06-26
Classification: C09D

Abstract:
An ink composition comprising ink and a water soluble ultraviolet absorbing compound of the formula ##STR22##wherein R.sub.1 is selected from the group consisting of ##STR23##R.sub.2 is selected from the group consisting of --H and halogen; R.sub.3 is selected from the group consisting of --H, halogen, lower alkyl, lower alkoxy, --CO.sub.2 M and --SO.sub.3 M; R.sub.7 is selected from the group consisting of --H, --SO.sub.3 M and --NHCO-lower alkyl; R.sub.8 is selected from the group consisting of --H, --CO.sub.2 M and --SO.sub.3 M; R.sub.9 is selected from the group consisting of --H, --CO.sub.2 M, --SO.sub.3 M and --NHCO-lower alkyl; and M is selected from the group consisting of --H, --Na, --K, --Li and --N--(R.sub.10).sub.4 wherein each R.sub.10 is independently selected from the (group consisting of --H, lower alkyl and ##STR24##R.sub.11 is selected from the group consisting of --H, --CH.sub.3 and --CH.sub.2 --CH.sub.3 ; and n is from 1 to 4; and wherein the compound contains one or two --SO.sub.3 M groups, one --SO.sub.3 M and one --CO.sub.2 M group, or two --CO.sub.2 M groups.