Method for producing water-soluble or water-swellable...

Details Method for producing water-soluble or water-swellable... Method for producing water-soluble or water-swellable...

2006-04-18

2006-04-18

Zalukaeva, Tatyana (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S240000, C526S303100, C526S317100, C526S319000, C528S490000

Reexamination Certificate

active

07030199

ABSTRACT:
The invention relates to a process for producing water-soluble or water-swellable polymer products from acrylic acid and/or acrylic acid derivatives partially or completely neutralized with nitrogen compounds and with exceedingly low levels of residual monomers, which process is characterized by subsequent heating of the polymer product at temperatures of from 120 to 240° C. The polymers produced accordingly are suitable for use as flocculants, dispersants and absorbers.

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