Patent · US Active

Process for producing water-absorbing polymer particles

US8242191B2 · kind B2 · utility

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1References

16Claims

0Family size

Assignee

BASF SE

Inventors

Volker Braig · Weinheim, DE
Thomas Daniel · Waldsee, DE
Axel Jentzsch · Ludwigshafen, DE
Andreas Brockmeyer · Zwingenberg, DE

Key dates

Filing date	Nov 4, 2009
Grant date	Aug 14, 2012
Priority date	—
Expiry date	Jun 11, 2030

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2998
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A process for producing odor-inhibiting water-absorbing polymer particles based on ethylenically unsaturated monomers bearing acid groups, wherein the acid groups have been neutralized to an extent of from 40 to 70 mol % and the polymer particles are coated with a condensed tannin and/or a hydrolyzable tannin.

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