Method of forming low temperature dispersions

专利名称：Method of forming low temperature

dispersions

发明人：Edgar W. Sawyer, Jr.申请号：US05/866094申请日：19771230公开号：US042038A公开日：19800520

摘要：Dispersions with lowered freezing points are provided by dissolving a dispersingagent in water, adding urea, adding a particulate inorganic solid, and then adding alcoholas a freezing point depressant. Dispersions formed in this manner can contain 20 to 75%inorganic solids in suspension without flocculating in the presence of the alcohol.Alternatively, the dispersant can be dissolved in an aqueous urea solution and the fine,particulate inorganic solid can be dispersed in the solution after which the alcohol may beadded. These compositions exhibit depressed freezing points and can still betransported as a liquid at lower temperatures.

申请人：INTERNATIONAL TELEPHONE & TELEGRAPH CORP

代理人：John T. O'Halloran,Peter C. Van Der Sluys

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