摘要:
Structured particle latexes are prepared by emulsion polymerizing monomeric materials in aqueous media in one or more stages wherein in at least one of the stages a reactive polymeric surfactant is used. The resulting latex contains nonionic particles to which are bound the reactive polymeric surfactant which forms a layer containing stabilizing "ionic" groups such as sulfonium groups, quaternary ammonium groups or sulfonate groups chemically bound at or near the surface of the polymer particles, which are dispersed in aqueous media. The cationic latexes are particularly suitable for beater additives and organic pigments.
摘要:
A process for preparing substantially linear water-soluble interpolymeric interfacially spreading polyelectrolytes, such process comprising (1) a homogeneous polymerization in an aqueous emulsion of a mixture of ethylenically unsaturated nonionic monomers wherein at least one of such monomers contains a reactive group and wherein the polymerization reaction forms an interpolymer containing nonionic functional groups, then (2) adding a coreactant compound to the aqueous emulsion in an amount sufficient to convert the interpolymer to a water-soluble polyelectrolyte having a charge which is the same as the charge of the emulsion of (1) above.