Concentrated inverse latex composition for use as thickener or emulsifier, e.g. in cosmetics, pharmaceuticals or textile printing paste, comprises organic polymer, water-in-oil emulsifier, oil and optionally water

摘要

Inverse latex compositions (I) comprising (a) 50-80 wt% linear, branched or crosslinked organic polymer also contain (b) 5-10 wt% water-in-oil emulsifier system, (c) 5-45 wt% oil and (d) 0-5 wt% water, are new. An independent claim is also included for the production of (I) by emulsifying an aqueous phase (A) containing monomers and any hydrophilic additives in an organic phase (O) containing the surfactant system (S1), a mixture of the oil to be present in the final composition plus a volatile oil, and any hydrophobic additives, polymerizing the monomers in presence of a radical initiator and then concentrating by complete distillation of the volatile oil.