申请人:PAPIERFABRIK AUGUST KOEHLER SE
公开号:US11084307B2
公开(公告)日:2021-08-10
The invention relates to a compound of the formula (I) Ar(NHSO2Ar1)l(SO2NHAr1)m(NHC(O)NHAr2)n (I), wherein l and m independently of one another are 0, 1, 2, 3, and/or 4 and the sum of l+m is equal to or more than 1, n is 2, 3, 4, or 5, Ar is a benzol group which is substituted (l+m+n) times, Ar1 is an unsubstituted or substituted aromatic group, and Ar2 is an unsubstituted or substituted phenyl group or a benzoyl group. The invention also relates to a heat-sensitive recording material comprising a carrier substrate and a heat-sensitive color-forming layer which contains at least one color former and at least said color developer.
本发明涉及一种式(I)Ar(NHSO2Ar1)l(SO2NHAr1)m(NHC(O)NHAr2)n (I)的化合物,其中 l 和 m 相互独立地为 0、1、2、3 和/或 4,且 l+m 之和等于或大于 1、n是2、3、4或5,Ar是被取代(l+m+n)次的苯酚类基团,Ar1是未取代或取代的芳香族基团,Ar2是未取代或取代的苯基或苯甲酰基团。本发明还涉及一种热敏记录材料,包括载体基底和热敏显色层,热敏显色层包含至少一种显色剂和至少所述显色剂。