| abstract |
The present invention relates to a catalyst useful for enabling and facilitating the insertion of alkylene oxides into ester bonds. Esters used as substrates to be alkoxylated include esters of fatty acids such as mono-, di-, and tri-esters of glycerin and glycerin of C 14 to C 22 fatty acids, including vegetable oils, animal fats, and plant oils. It includes. The catalyst according to the invention comprises at least two alkaline earth compounds, which may comprise any known stable compound of alkaline earths and optionally one or more carboxylic acids or polyalkylenes having a molecular weight of about 100 to 1500 It may contain additional materials such as glycols or C 1 -C 10 alkyl-capped polyalkylene glycols having a molecular weight of about 100-1500. Preferred alkaline earths used are salts and compounds of magnesium and calcium.n n n n Alkoxylation Catalysts, Manufacturing Methods of Alkoxylation Catalysts, Alkaline Earth Compounds, Alkoxylation Surfactants. |