Patent · US Active

Process for producing water-absorbing polymer particles in a polymerization reactor with at least two axially parallel rotating shafts

US9248429B2 · kind B2 · utility

1Cited by

6References

9Claims

0Family size

Assignee

BASF SE

Inventors

Monte Peterson · Pearland, US
Karl J. Possemiers · Schilde, BE
Ronny De Kaey · Mortsel, BE
Dominicus van Esbroeck · Nanjing, CN
Rüdiger Funk · Niedernhausen, DE

Key dates

Filing date	Jun 12, 2013
Grant date	Feb 2, 2016
Priority date	—
Expiry date	Dec 20, 2033

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J2220/68
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A process for producing water-absorbing polymer particles by polymerizing an aqueous monomer solution in a polymerization reactor with at least two axially parallel rotating shafts, wherein the polymerization is performed in the presence of an inert gas and under positive pressure.

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