Process for Preparing a Triazine-Based Precursor, the Precursor Prepared Thereby, a Method for Producing a Micro-Particulate Complex Using the Precursor, and the Micro-Particulate Complex Produced Thereby

A process for preparing a triazine-based precursor for producing a micro-particulate complex containing a far infrared-emissive silica particle, the process comprising steps of:

• a) subjecting 2-4-6-trichloro-1,3,5-triazine and a first nucleophilic compound represented by a formula of H—X(R1)n to a displacement reaction in the presence of a first solvent at a first temperature range to form an intermediate represented by Formula (1)
• wherein
• each X is a nucleophilic atom independently selected from the group consisting of N, O, and S,
• each R1 is independently selected from the group consisting of H, C1-C22 linear alkyl, and C1-C22 branched alkyl and is unsubstituted with amino, and
• each n is independently 1 or 2,
• with the proviso that
• X is O or S and R1 is not H when n is 1, and
• X is N and at least one R1 is not H when n is 2;
• and
• b) subjecting the intermediate represented by Formula (1) and a second nucleophilic compound represented by a formula of H—NH-R2—Si(OR3)3 to a further displacement reaction in the presence of a second solvent at a second temperature range higher than the first temperature range to form the triazine-based precursor represented by Formula (a),
• wherein
• R2 represents C2-C4 alkylene, and
• each R3 independently represents C1-C2 alkyl.