METHOD OF PRODUCING WATER-ABSORBENT POLYMER PARTICLES BY POLYMERISATION OF DROPLETS OF MONOMER SOLUTION Russian patent published in 2013 - IPC C08F220/02 C08F220/04 C08F2/34 

Abstract RU 2484100 C2

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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RU 2 484 100 C2

Authors

Lesh Dennis

Krjuger Marko

Shtjuven Uve

Khajde Vil'Frid

Vajsmantel' Mattias

Bljaj Shtefan

Dates

2013-06-10Published

2008-08-25Filed