| 摘要 |
The invention relates to a method for the production of a water-in-water polymer dispersion, comprising polymer A and at least one polymer dispersing agent B, whereby monomers, distributed in an aqueous phase containing the water-soluble dispersion agent B, optionally with addition of a water-soluble salt, undergo a radical polymerisation. After said polymerisation a water-soluble acid is added to the water-soluble or water-absorbent polymer A, obtained as above, whereby the acid is added in amounts of 0.1-5 wt. % and the salt in amounts up to a maximum of 3.0 wt. %, each relative to the total dispersion, and the combined amount of acid and salt is a maximum of 5 wt. % relative to the total dispersion.
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