Carbomer products are polymerized by method of solvent polymerization -precipitation polymerization. Usually, their solvents media systems include benzene, hexane, methyl chloride, ethylene dichloride, ethyl acetate and cyclohexane , and mixtures of these and other solvents.as the solvent system.
NM-Carbomer 940, carbomer 996, carbomer 676, carbomer 941 with benzene solvent system are cost efficient. And NM-Carbomer 980, 981,990 with toxicologically-preferred cosolvent system- ethyl acetate and cyclohexane.
NM-carbomer 981 and carbomer 941 are outstanding long-flow property in mucilage. They offer excellent clarity in gels and give permanent emulsions and suspensions at low viscosity, even with ionic systems.