| 摘要 |
PROBLEM TO BE SOLVED: To solve problems: when hydrazine hydrate is dropped onto a p, p'-oxybis(benzenesulfonyl chloride) slurry and reacted, it takes time to finish the reaction to p, p'-oxybis(benzenesulfonyl hydrazide) and excess amount of hydrazine hydrate is required to shorten the reaction time, and the p, p'-oxybis(benzenesulfonyl hydrazide) solely having small particle sizes are obtained. SOLUTION: By dropping p, p'-oxybis(benzenesulfonyl chloride) into hydrazine hydrate and increasing a reaction velocity, large sized particles are formed and p, p'-oxybis(benzenesulfonyl hydrazide) having particle sizes which can be easily regulated in a succeeding process is prepared in a short time. COPYRIGHT: (C)2008,JPO&INPIT
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