Abstract

sn hot water was removed from it on cooling. The products of the reaction, both the waterioluble and insoluble ones, were analysed. The part of the substance soluble in the benzeneacetone mixture was separated and studied as described above. The analytical data is shown in Table 2. The molecular weight was determined in all cases by the Rast eryoscopie method, and in some cases also by the end group method. The isocyanate and amine numbers were determined by the usual method [4].

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