Water absorbent polymer and method of production thereof

Details Water absorbent polymer and method of production thereof Water absorbent polymer and method of production thereof

C - Chemistry, Metallurgy

08

F

400/3075, 252/31

C08F 220/06 (2006.01) B01J 20/26 (2006.01) C08F 2/32 (2006.01) C08F 8/00 (2006.01)

Patent

CA 1340500

Water absorbent polymer capable of keeping absorbed water therein in the form of independent grains and having the property of slipping between particles is produced by: a) dissolving acrylic copolymer as dispersing agent in a liquid aliphatic hydrocarbon; b) partially neutralizing an acrylic acid monomer in aqueous solution with an alkali to form an aqueous solution of partially neutralized acrylic acid; c) dispersing the aqueous solution of partially neutralized acrylic acid of b) in the solution of acrylic copolymer of a) to polymerize by w/o suspension polymerization; and d) subjecting the resultant polymer of c) to crosslinking reaction in the presence of crosslinking agents and in the presence or absence of an inorganic compound to dry.

616396

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