Patent · US Active

Production of water-absorbing polymeric particles

US8026315B2 · kind B2 · utility

1Cited by

5References

17Claims

0Family size

Assignee

BASF SE

Inventors

Ulrich Riegel · Landstuhl, DE
Thomas Daniel · Waldsee, DE
Dieter Hermeling · Haßloch, DE
Mark Elliott · Ludwigshafen, DE

Key dates

Filing date	Mar 28, 2006
Grant date	Sep 27, 2011
Priority date	—
Expiry date	Mar 23, 2028

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F8/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to a process for producing water-absorbing polymeric particles by polymerizing a monomer solution, which comprises removing the polymer gel from the reactor when the gel temperature is at least 50° C. and the monomer conversion is not more than 90 mol %, and also to a process for producing hygiene articles.

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