发明授权
US4331588A Zinc containing terephthaloyl-terephthal/oxal copolyhydrazide composition 失效
含对苯二甲酰对苯二甲酸/草酰共酰肼组成的锌

Zinc containing terephthaloyl-terephthal/oxal copolyhydrazide composition
摘要:
Zinc chelates of terephthaloyl-terephthalic/oxalic copolyhydrazides, the oxalic dihydrazide and terephthalic dihydrazide units having a molar ratio in the range of 19:6 to 6:19, as well as the products aftertreated with an oxalic acid solution.
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