FIELD: chemistry.
SUBSTANCE: described is a method of producing water-absorbent polymer particles by polymerising droplets of a monomer solution in the surrounding gas phase of a reaction space, said solution containing: a) at least one ethylenically unsaturated carboxylic acid; b) optionally a cross-linking agent; c) at least one initiator and d) water, wherein the monomer solution contains 0.0002-0.003 wt % oxygen and content of oxygen in the gas phase is equal to 0.5-10 vol. %.
EFFECT: method of obtaining water-absorbent polymer particles with high output of the product.
11 cl, 4 ex
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Authors
Dates
2013-06-10—Published
2008-08-25—Filed