| 摘要 |
<p>PROBLEM TO BE SOLVED: To achieve both of low-temperature melting property and blocking resistance and to improve stability with time of polylactic acid resin fine particles to be used for various purposes such as a hot-melt adhesive material, a coating material such as a powder coating material, toner, paste, ink, and cosmetic additives.SOLUTION: The polylactic acid resin fine particles essentially comprise a polylactic acid resin, with a total content of lactide and lactic acid of 0.30 mass% or less, and satisfy at least one of the following conditions (1) and condition (2). (1) A molar ratio (L-lactic acid residue/D-lactic acid residue) of L-lactic acid residues to D-lactic acid residues is 1 or more and 7 or less, and the D-lactic acid residues essentially comprise D-lactic acid residues derived from meso-lactide. (2) A molar ratio (D-lactic acid residue/L-lactic acid residue) of L-lactic acid residues to D-lactic acid residues is 1 or more and 7 or less, and the L-lactic acid residues essentially comprise L-lactic acid residues derived from meso-lactide.</p> |
