| 摘要 |
An opaque liquid detergent composition comprises (a) one or more synthetic detergents, and (b) an aqueous dispersion of a water and alkali insoluble homopolymer of styrene or substituted styrene, or a water and alkaliinsoluble copolymer thereof with a minor proportion by weight of one or more copolymerizable monomers; (a) may be anionic in nature, e.g. soap, an alkylbenzene sulphonate, a primary or sec.-alkyl sulphate or a sulphated alkylphenol-ethylene oxide condensate, all suitably present as the sodium or ammonium salts, nonionic, e.g. a fatty acid mono- or di-alkanolamide, or an ethylene oxide condensate with an alkylphenol, a fatty alcohol or a fatty acid, or cationic, e.g. an alkyl-trimethylammonium, alkylpyridinium or alkyldimethylarylammonium halide. The styrene monomer used in (b) may be substituted with alkyl, alkoxy or halo groups, and may be copolymerized with 1-25% of such substances as acrylamide, methacrylamide, acrylic and methacrylic acids and esters thereof, acrylo- and methacrylo-nitriles, butadiene or maleic acid. In general, (b) comprises 0.01-5% by weight of the composition, and the majority of the polymer particles have diameters of 0.1-4 m in the dispersion. Yetrasodium pyrophosphate, sodium, potassium, ammonium and alkanolamine hexametaphosphates, penton sodium tripolyphosphate, carboxymethyl cellulose, hydroxyethyl cellulose, polyvinyl alcohol, polyvinyl pyrrolidone, polyacrylic or polymethacrylic acid salts, starch or its derivatives, sodium xylene sulphate, ethanol, glycerol, optical whiteness, colour and foaming agents may slso be incorporated. |
