Heat-sensitive recording material
AssigneePapierfabrik August Koehler SE
InventorsMichael Horn, Timo Stalling, Kerstin Zieringer
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Abstract
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.
Claims20
A compound of formula (I),
- Ar(NHSO2A1)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 greater than 1,
- n is 2, 3, 4 or 5,
- Ar is a benzene ring substituted (l+m+n) times,
- Ar1 is an unsubstituted or substituted aromatic group, and
- Ar2 is an unsubstituted or substituted phenyl group or an unsubstituted or substituted benzoyl group.
Dependencies are inferred from the claim text.