Compounds of the general formula ##STR1## wherein two of the residues R.sup.1, R.sup.2 and R.sup.3 represent C.sub.10-30 -alkyl residues with at least 8 C-atoms in a straight chain, at least one of these residues being substituted by at least 2 C.sub.1-3 -alkyl residues and the sum of the C-atoms in the two residues being greater than 20; and the third residue is a residue --P(O)(O.sup.-)OR.sup.4 in which R.sup.4 represents a lower-alkyl or C.sub.5-7 -cycloalkyl residue which is substituted by a quaternary ammonium group or a C.sub.5-7 -cycloalkyl residue which contains a di-(lower-alkyl)-substituted nitrogen atom, are useful for the manufacture of colloidal solution systems. The compounds of formula I can be prepared starting from glycerol derivatives as described in more detail in the specification.
通式为##STR1##的化合物,其中两个残基R.sup.1、R.sup.2和R.sup.3代表至少有8个C原子的直链C.sub.10-30烷基残基,其中至少一个残基被至少2个C.sub.1-3烷基残基取代,这两个残基中的C原子总数大于20;第三个残基是一个残基--P(O)(O.sup.-)OR.sup.4,其中R.sup.4代表一个取代有季
铵基团的低烷基或C.sub.5-7环烷基残基,或者一个含有二(低烷基)取代氮原子的C.sub.5-7环烷基残基,这些化合物可用于制备胶体溶液系统。通式I的化合物可以从
甘油衍
生物开始制备,详细描述在说明书中。