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Aqueous dispersion stabilizer of fine coal powder

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专利汇可以提供Aqueous dispersion stabilizer of fine coal powder专利检索,专利查询,专利分析的服务。并且PURPOSE: To improve dispersibility and to prevent production of hard cake, by using a stabilizer represented by a specified formula, and having a weight ratio of polyoxypropylene chain/polyoxyethylene chain in a specified range, and a specified mol.wt. range.
CONSTITUTION: The present stabilizer is represented by the following formula: A[(C
3 H
6 O)y(C
2 H
4 O)
z H]x, (where x≥2, y, z≥1 and x, y, z are each an integer, and A is the residue of an x-valent active hydrogen compd. freed of active hydrogen atoms), and it has 50/50W5/95wt. ratio of polyoxypropylene chain/polyoxyethylene chain, and 3,000W100,000mol.wt. Said active hydrogen compd. is an amino compd. or a hydroxy compd. having ≥3 active hydrogen atoms, such as ethylenediamine or glycerin. Said aq. dispersion stabilizer of fine coal powder has good dispersion performance, it does not form hard cake during storage for a long period, and good in redispersifying property.
COPYRIGHT: (C)1983,JPO&Japio,下面是Aqueous dispersion stabilizer of fine coal powder专利的具体信息内容。

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