申请人:Polaroid Corporation
公开号:US04826976A1
公开(公告)日:1989-05-02
This invention relates to a color-shifted dye compounds containing at least one thermally unstable carbamate moiety which are useful in thermal imaging. These compounds may be represented by the formula [M--(X).sub.q ].sub.p D wherein M is a carbamate moiety; X is --N.dbd., --SO.sub.2 -- or --CH.sub.2 --; D taken with X and M represents the radical of a color-shifted organic dye, said carbamate moiety M comprising a tert-alkoxycarbonyl group, ##STR1## wherein R' is halomethyl or alkyl.
这项发明涉及一种含有至少一个热不稳定的氨基甲酸酯基团的颜色转移染料化合物,这些化合物在热成像中有用。这些化合物可以用公式[M--(X).sub.q ].sub.p D表示,其中M是氨基甲酸酯基团;X是--N.dbd.,--SO.sub.2--或--CH.sub.2--;D与X和M一起代表颜色转移有机染料的基团,所述的氨基甲酸酯基团M包括一种叔烷氧羰基团,##STR1## 其中R'是卤代甲基或烷基。