| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of producing resin particles for obtaining resin particles in which nonconventional excellent heat-resistant preservability and melting characteristics are made compatible with each other. <P>SOLUTION: The method of producing the resin particles (X) includes a step of treating resin particles (B) containing a resin (A) constituted of a crystalline part (a) having polycarbonate (p) as an indispensable constituent and an amorphous part (b) with carbon dioxide (C) in a liquid state or a supercritical state and then removing the (C), wherein heat of fusion of the obtained (X) by measurement of differential scanning calorie (DSC) satisfies relational expression (1): 0≤H2/H1≤0.9 [in the expression, H1 denotes a measured value of heat of fusion (J/g) upon temperature increase at the first time by measurement of DSC and H2 denotes a measured value of heat of fusion (J/g) upon temperature increase at the second time by measurement of DSC]. <P>COPYRIGHT: (C)2011,JPO&INPIT |
