| abstract |
Provided is a polishing-layer molded body: which is non-porous; which contains a thermoplastic polyurethane that is a polymer of monomers including a polymer diol, an organic diisocyanate, a first chain extender containing a diol having 4 or fewer carbon atoms, and a second chain extender containing a diol having 5 or more carbon atoms; and in which the content ratio of nitrogen derived from isocyanate groups in the organic diisocyanate is 6.3-7.4 mass %. |