Orgal® M 420

Orgal® M 420 by Organik Kimya is an APEO free, acid containing crosslinked acrylic polymer. When the emulsion is diluted with water and neutralized with a base, each emulsion particle swells greatly. The emulsion clarifies under these conditions and becomes highly viscous. Once neutralized, solutions of it cannot be reverted to emulsion form as a reduction in pH will precipitate the polymer. Solutions of product salts are more similar in properties to solutions of natural gums or higher viscosity grades of water soluble cellulose derivatives than the other grades of acrylic thickeners. Solutions are prepared for use rapidly, since neutralization occurs almost instantaneously with a variety of standard bases. Handling is greatly simplified compared to that necessary with powdered natural or synthetic gums. It is possible in specific cases to incorporateit into a latex emulsion or other suspension without preneutralization as first determined on a laboratory basis. Solutions of it effectively suspend pigments, abrasives and other fine particle solids. Unlike conventional thickeners, salts of Orgal® M 420 have no flocculating action; thickened lattices remain free of any creaming tendency and aqueous suspensions are free of sedimentation.