Production of superabsorbent polymers on a continuous belt reactor
AssigneeBASF SE
InventorsMatthias Weismantel, Rüdiger Funk, Leigh R. Blair, Kevin D. Heitzhaus, Bruce Storey
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Abstract
The invention relates to the production of superabsorbent polymers on a continuous belt reactor, comprising at least one rotating knife that cuts the formed polymer gel at the end of the continuous belt reactor, wherein the length of the cutting edge is at least 1 cm and the cutting edge is non-parallel to the rotation axis.
Claims10
A process for production of superabsorbent polymers on a continuous belt reactor, comprising cutting a formed polymer gel at an end of the continuous belt reactor with at least one rotating knife, wherein a length of a cutting edge is at least 1 cm and the cutting edge is non-parallel to a rotation axis
- and wherein a power input of the at least one rotating knife changes less than 20% during one revolution, and
- wherein a difference of a speed of the continuous belt and a tip speed of the knife is less than 25%.
Dependencies are inferred from the claim text.