Alkyl poly(oxyalkylene) acrylate oligomer esters and copolymers thereof, their use as thickeners and compositions containing them.

摘要

Polymerizable alkyl poly (oxyalkylene) esters of acrylate oligomer are provided as well as copolymers thereof, especially stable, aqueous dispersions of water-insoluble emulsion copolymers of (1) at least 10% by weight of certain acids, especially methacrylic or acrylic acid, (2) about 0.5-30% by weight of the alkyl poly (oxyalkylene) acrylate oligomer ester, and optionally further ethylenically unsaturated monomer, which are useful thickeners. Thickening is effected on at least partial neutralisation of the copolymers and thickening is especially effective in the presence of surfactant. Aqueous compositions utilising this thickening effect are disclosed.