发明授权
US4581034A Finishing leather with a synthetic carboxylated rubber dispersion 失效
用合成羧化橡胶分散体整理皮革

Finishing leather with a synthetic carboxylated rubber dispersion
摘要:
Leather is finished with a synthetic carboxylated rubber dispersion to which as much as 50% by weight of one or more oxides and/or hydroxides of divalent and/or trivalent metals may have been added, finishing being carried out by a process in which the carboxylated rubber dispersion is prepared by the emulsion feed method, with a conversion of more than 90%, in such a way that it contains from 20 to 60% by weight of carboxylated rubber which is soluble in dimethylformamide at room temperature.
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