Patent · US Active

Method for post-crosslinking of the surface of water-absorbing polymer particles

US8188193B2 · kind B2 · utility

1Cited by

0References

8Claims

0Family size

Assignee

BASF SE

Inventors

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

Key dates

Filing date	Jul 3, 2009
Grant date	May 29, 2012
Priority date	—
Expiry date	Jul 3, 2029

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08J2333/06
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A process for thermally surface postcrosslinking water-absorbing polymer particles in a fluidized bed generated by means of a carrier gas, wherein the surface postcrosslinker is supplied to the fluidized bed in gaseous form.

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