Journal of Polymer Science Part A: Polymer Chemistry, Vol.42, No.9, 2225-2234, 2004
Preparation of cationic latices comprising hollow thermostable particles
A method is described for the preparation of cationic latices comprising submicron hollow particles for a possible application as a thermally stable polymeric pigment in coatings or pigmented compositions on the basis of thermosetting polymers cured at temperatures up to 170-190 degreesC. The method is based on the deposition of melamine-formaldehyde resin in the form of cationic colloid onto anionic hollow particles resulting in the recharging of anionic hollow particles and the formation of an outer melamine shell, which provides thermal stability of the hollow particles at curing and application of pigmented coatings and compositions. (C) 2004 Wiley Periodicals, Inc.
Keywords:hollow particles;melamine-formaldehyde resin;cationic colloid;anionic particles recharging;thermal stability;pigmented coatings;latices;copolymerization;curing of polymers