申请人:Nippon Soda Co., Ltd.
公开号:US07012159B1
公开(公告)日:2006-03-14
Phenolic compounds of general formula (I);
and recording materials characterized by containing one of them and exhibiting high light stability wherein R1 and R2 are each hydrogen or C1-C6 alkyl; m is an integer of 1 to 6; n is an integer of 0 to 2; p and t are each an integer of 0 to 3 with the proviso that not both are simultaneously 0; R3 and R4 are each nitro, carboxyl, halogeno, C1-C6 alkyl, or the like; q and u are each an integer of 0 to 2 with the proviso that when q or u is 2, R3s or R4s may be different from each other; and Y is CO or NR5CO (wherein R5 is hydrogen or the like), with the proviso that when Y is CO, p is 1 and that when p is 0 and Y is NR5CO, n is not 0.
通式为(I)的酚类化合物;以及包含其中一种并表现出高光稳定性的记录材料,其中R1和R2分别为氢或C1-C6烷基;m为1至6之间的整数;n为0至2之间的整数;p和t分别为0至3之间的整数,但不同时为0;R3和R4分别为硝基,羧基,卤素,C1-C6烷基或类似物;q和u分别为0至2之间的整数,但当q或u为2时,R3s或R4s可能不同;Y为CO或NR5CO(其中R5为氢或类似物),但当Y为CO时,p为1,当p为0且Y为NR5CO时,n不为0。