Phenolic compounds

Details Phenolic compounds Phenolic compounds

C - Chemistry, Metallurgy

07

C

C07C 317/22 (2006.01) B41M 5/26 (2006.01) B41M 5/333 (2006.01) C07C 317/32 (2006.01)

Patent

CA 2046687

Abstract of the Disclosure 4-Hydroxydiphenylsulfone derivatives represented by formula (I) Image (I) wherein R1, R2, R3 and R4, independently from one another, each denote a hydrogen atom, an alkyl group, a substituted or unsubstituted phenyl group or a cycloalkyl group, provided at least one of R1, R2, R3 and R4 is other than a hydrogen atom, and R denotes an alkyl group, an alkenyl group, a substituted or unsubstituted phenyl group, a substituted or unsubstituted cycloalkyl group or a substituted or unsubstituted phenylalkyl group. Said compounds are useful as a developer in a heat sensitive color formation layer of a heat sensitive recording material.

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