| 摘要 |
This invention relates to solutions of polyisocyanate polyaddition products with a solids content of from 5 to 70% by weight of A. Reaction products of (a) polyisocyanates, (b) hydrazines and/or polyamines and/or dihydrazides and/or ammonia and/or urea and/or low molecular weight polyols, (c) optionally higher molecular weight polyols and (d) optionally formaldehyde in B. polyhydric alcohols having a molecular weight of between 62 and 450. |
