Color developer for pressure sensitive recording paper and production thereof using phenol-mesitylene-formaldehyde resin

摘要

The present invention relates to a polyvalent metal-bound carboxyl-modified p-alkylphenol-mesitylene-formaldehyde resin composition produced by binding with a polyvalent metal a -alkylphenol-mesitylene-formaldehyde co-condensate containing a carboxyl group, to produce a color developer for pressure-sensitive recording paper.