Patent · US Active

Production method for producing water-absorbing polymer particles and belt dryer

US10648731B2 · kind B2 · utility

4Cited by

7References

21Claims

0Family size

Assignee

BASF SE

Inventors

Gerald Grünewald · Bridge City, US
Rüdiger Funk · Niedernhausen, DE
Matthias Weismantel · Bad Orb, DE
Karl J. Possemiers · Schilde, BE

Key dates

Filing date	Apr 15, 2016
Grant date	May 12, 2020
Priority date	—
Expiry date	May 31, 2036

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08J2300/14
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A production process for production of water-absorbing polymer particles including drying an aqueous polymer gel in a belt drier with a conveyor belt. The belt drier is formed with a drier setup substantially comprising the conveyor belt and an air recycling conduit downstream of the drier setup for air recycling, where recycled air is withdrawn from the drier setup and fed back to the drier setup via the air recycling conduit.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.