NON-PHENOLIC COLOR DEVELOPER AND HEAT-SENSITIVE RECORDING MATERIAL

The invention relates to a color developer of formula (I), (Ar1-SO2-NH-)m-Y-(-NH-C(O)-NH-SO2-Ar2)n (I), wherein Ar1 is an unsubstituted or substituted aromatic moiety, Ar2 is an unsubstituted or substituted phenyl moiety, Y is at least an (m+n)-times substituted benzene group or naphthalene group, a...

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Bibliographic Details
Main Authors STEPPAT, Maren, HORN, Michael, STALLING, Timo
Format Patent
LanguageEnglish
French
German
Published 26.10.2022
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
COLOUR PRINTING
LINING MACHINES
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PRINTING
PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES
STAMPS
TRANSPORTING
TYPEWRITERS
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Summary:The invention relates to a color developer of formula (I), (Ar1-SO2-NH-)m-Y-(-NH-C(O)-NH-SO2-Ar2)n (I), wherein Ar1 is an unsubstituted or substituted aromatic moiety, Ar2 is an unsubstituted or substituted phenyl moiety, Y is at least an (m+n)-times substituted benzene group or naphthalene group, and Y is substituted in such a way that at least one Ar2-SO2-NH-C(O)-NH group is in ortho-position with respect to at least one Ar1-SO2-NH group. The invention further 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 one phenol-free color developer, the at least one color developer being the compound of formula (I). The invention further relates to a method for producing said heat-sensitive recording material.
Bibliography:Application Number: EP20180726113