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Preparing hydrophobic starch sulfate useful in preparing cement water reducing agent, comprises placing sulfamic acid, starch, urea, aliphatic tertiary alcohol and water in a reactor, and reacting. 专利
申请日期: 2014-01-01, 公开日期: 2014-09-03
作者:  JU B ZHANG S
收藏  |  浏览/下载:5/0  |  提交时间:2019/12/11
Preparation of hoist and gourd urea derivative by mixing glycoluril-aldehyde polymer or glycoluril and aldehyde, acid ionic liquid and solvent, reacting, standing, cooling, and crystallizing or adding organic solvent. 专利
申请日期: 2014-01-01, 公开日期: 2014-09-03
作者:  LIU L
收藏  |  浏览/下载:2/0  |  提交时间:2019/12/11


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