To provide an organic polyisocyanate composition containing a specific phenolic compound, to provide a stabilizer composition for organic polyisocyanate comprising the specific phenolic compound and an organic phosphite, more specifically, to provide the organic polyisocyanate composition effectively prevented from discoloration, and to provide the stabilizer composition capable of preventing an organic polyisocyanate from discoloration.
The organic polyisocyanate composition comprises an organic polyisocyanate compound and a specific hindered phenolic compound. The stabilizer composition for organic polyisocyanate comprises the specific hindered phenolic compound and the organic phosphite. Thus, discoloration of the organic polyisocyanate composition can effectively be prevented even without using BHT(butylated hydroxytoluene), and among others, the new organic polyisocyanate composition with high storage stability at high temperatures can be provided.
ENUMA KEIJI
SASAKI SUKEAKI
Koji Makimura
Chihata Takahata
Toru Suzuki