| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an ink binder which is excellent in adhesiveness, has sufficient moist heat resistance, and is excellent in low temperature flexibility. <P>SOLUTION: This ink binder comprising a polyurethane which comprises a polymer polyol (A), an organic polyisocyanate (B), and a chain extender (C), wherein (A) is a polycarbonatediol which comprises repeating units of formula (a) and formula (b). <P>COPYRIGHT: (C)2008,JPO&INPIT |
