Colour developers - composition, a process for the preparation of an aqueous dispersion of the same and pressure sensitivity of the writing material by laboratory

摘要

the present invention relates to a farbentwickler - composition, a farbentwickler, as main component, a core substituiertes salicylsu00e4uresalz of the below formula (1) comprises at least one connection, and amid the compounds of formulas (2) and (3) selected does f1 f2 f3. $$$wherein the groups r1 to r10 and m and n are defined as in claim 1.