Patent · US Active

Method for coating water-absorbing polymer particles

US8663734B2 · kind B2 · utility

0Cited by

5References

20Claims

0Family size

Assignee

BASF SE

Inventors

Holger Barthel · Oftersheim, DE
Martin Wendker · Ludwigshafen am Rhein, DE
Reiner Witt · St. Leon-Rot, DE
Jeff Vogt · Brakel, DE

Key dates

Filing date	Mar 17, 2008
Grant date	Mar 4, 2014
Priority date	—
Expiry date	Jul 8, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2991
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A process for preparing water-absorbing polymer particles by spraying a liquid below the product bed surface by means of at least one spray nozzle in a mixer with moving mixing tools.

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