Patent · US Active

Method for producing water-absorbing polymer particles by polymerizing droplets of a monomer solution

US8546498B2 · kind B2 · utility

1Cited by

4References

9Claims

0Family size

Assignee

BASF SE

Inventors

Marco Krüger · Mannheim, DE
Stefan Blei · Mannheim, DE
Wilfried Heide · Freinsheim, DE
Matthias Weismantel · Bad Orb, DE
Uwe Stueven · Bad Soden, DE

Key dates

Filing date	Jul 1, 2009
Grant date	Oct 1, 2013
Priority date	—
Expiry date	Feb 2, 2030

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2982
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A process for producing water-absorbing polymer particles by polymerizing droplets of a monomer solution in a surrounding gas phase in a reaction chamber, wherein the monomer solution is metered into the reaction chamber via at least one bore, and the diameter is from 210 to 290 μm per bore and the metering rate is from 0.9 to 5 kg/h per bore.

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