| 摘要 |
The compsn. for catalyzing the curing reaction between a blocked organic polyisocyanate and a polymer having OH gp. reactable with polyisocyanate, comprises a divalent metal compd. selected from salts and chelated coordination complexes of Cu(II), Zn(II), Ni(II), Fe(II) , Co(II) and V(II), and A Sn-contg. urethane catalyst to increase the catalytic effectiveness of the divalent metal compd.. |
