Abstract: The invention relates to a method of producing fatty acid esters of polyoxyalkylene glycerol ethers. The method comprises reacting an alkylene oxide or oxides directly with a mixture of a natural fat or oil, water and a catalyst. The method of the invention can avoid the complicatedness encountered in the prior art production processes and give polyoxyalkylene glycerol ether fatty acid esters excellent in surfactant performance.

Abstract: A dispersing agent for use in dispersing a finely divided solid powder in a nonaqueous dispersion medium and a dispersion prepared by using the dispersing agent. The dispersing agent of this invention is a low acid value lanolin fatty acid and/or a salt of the same. By means of this dispersing agent, there can be easily obtained a homogeneous and stable nonaqueous dispersion from which the incorporated solid particles will not separate out or settle even on prolonged standing. Therefore, this dispersing agent can be used advantageously in a broad range of applications such as coatings, dyes, pigments, inks, fuels, lubricating materials and so on.

Abstract: The present invention relates to a dispersant for nonaqueous systems which can disperse insoluble fine powders in nonaqueous liquids in a short period of time and give long-term dispersion stability to the resulting dispersions without allowing the formation of a so-called hard cake. The dispersant consists essentially of at least one polyether compound derived from at least one member of the class consisting of polyamine compounds having 5 to 300 active hydrogen atoms per molecule, polyalkylenimine compounds having 5 to 300 active hydrogen atoms per molecule, and derivatives thereof having 5 to 300 active hydrogen atoms per molecule by addition of at least one of ethylene oxide and propylene oxide and at least one alpha-olefin oxide containing 4 to 30 carbon atoms. The polyether compound has a molecular weight of 1,000 to 1,000,000.