Polymeric surfactant

摘要

A compound of the formula
R1.[(AO)n.A OR2]m  (I)
where: R1 is the residue of a group having at least m active hydrogen atoms where m is at least 2; AO is an alkylene oxide residue; each n is independently from 0 to 100; and each R2 is independently H or an acyl group COR3 where each R3 is independently a residue of a polyhydroxyalkyl or polyhydroxyalkenyl carboxylic acid, a residue of a hydroxyalkyl or hydroxyalkenyl carboxylic acid and/or a residue of an oligomer of the hydroxyalkyl or hydroxyalkenyl carboxylic acid wherein on average at least 2 of R2 is an acyl group. The compounds are particularly suitable for use as emulsifiers and/or dispersants.

主权项

1. A compound of the formula (I):
R1.[(AO)n.-AO—R2]m  (I) wherein:
R1 is the residue of a group having at least m active hydrogen atoms where m is at least 2;AO is an alkylene oxide residue;each n is independently from 0 to 100; andeach R2 is independently H or an acyl group COR3, wherein each R3 is independently a residue of a polyhydroxyalkyl or polyhydroxyalkenyl carboxylic acid, a residue of a hydroxyalkyl or hydroxyalkenyl carboxylic acid and/or a residue of an oligomer of the hydroxyalkyl or hydroxyalkenyl carboxylic acid; wherein the hydroxyalkyl or hydroxyalkenyl carboxylic acid comprises at least 9 carbon atoms; and wherein on average at least 2 of R2 is an acyl group COR3.