Process for continuously producing water-absorbing polymer...

Details Process for continuously producing water-absorbing polymer... Process for continuously producing water-absorbing polymer...

2009-06-17

2011-12-20

Bernshteyn, Michael M (Department: 1762)

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C526S317100

Reexamination Certificate

active

08080620

ABSTRACT:
A process for continuously producing water-absorbing polymer particles, comprising polymerization, drying, grinding, classification and at least partial recycling of the undersize obtained in the classification, wherein the polymer gel obtained by the polymerization is withdrawn from the polymerization reactor and mixed with the recycled undersize.

REFERENCES:
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Buchholz et al., Modern Superabsorbent Polymer Technology, pp. 71-103 (1998).

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