Patent · US Expired

Absorbent compositions

US6849665B2 · kind B2 · utility

46Cited by

5References

15Claims

0Family size

Assignee

BASF SE

Inventors

Volker Frenz · Hochheim, DE
Norbert Herfert · Charlotte, US
Ulrich Riegel · Landstuhl, DE
William E. Volz · Suffolk, US
Thomas H. Majette · Portsmouth, US
James Hill · Virginia Beach, US

Key dates

Filing date	Dec 28, 2001
Grant date	Feb 1, 2005
Priority date	—
Expiry date	Dec 28, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31978
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

Described is a water-absorbent composition containing from 30 to 100% by weight, based on the water-absorbent composition, of water-insoluble water-swellable hydrogels characterized by the following features:

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