| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for producing a resin composition by adding a carbodiimide compound in performing molding of a polymer having an acid group, wherein the both components are melted and kneaded without thermal denaturation, degradation, decoloration or the like, and a free isocyanate is not generated during the process. <P>SOLUTION: The method includes: quantatively charging a compound having one carbodiimide group and containing a cyclic structure where the first nitrogen and the second nitrogen of the group are bonded by a bonding group, in the proximity of outlet of a hopper for charging a dried polymer pellet having an acid group, or a raw material-charging port of a molding machine; directly mixing into the polymer pellets having the acid group in a dry state; and immediately melting and molding. <P>COPYRIGHT: (C)2012,JPO&INPIT |
