METHOD OF SYNTHESIS OF WATER-SOLUBLE POLYMERS OF (CO)ACRYLIC ORDER Russian patent published in 2002 - IPC

FIELD: organic chemistry, polymers, chemical technology. SUBSTANCE: invention relates to method of synthesis of water-soluble polymers of acrylic order that can be used in some fields of technique and technology. Invention describes method of synthesis of water-soluble (co)polymers of acrylic order involving (co)polymerization of parent monomers of acrylic order in the presence of radical initiating agents at temperature equal or near to the degradation point of taken initiating agent up to gel-effect appearance, drying and granulation of prepolymer. Prepolymer in conversion degree 30-85% is extruded immediately after gel- effect appearance, extrusion product is dried at temperature 60-135 C and the completely (co)polymerized and dried product is subjected for granulation. Invention ensures to decrease total time of synthesis of ready product up to 1.4 h. Invention can be used as size in textile finishing, in coal, mining industry and in processes of treatment and cleansing drinking, industrial and waste waters, as flocculant, in drilling technique as protective agent, in chemical industry as thickening agent. EFFECT: expanded assortment, simplified technology, improved safety of environment.