Patent · US Active

Mixture of surface postcrosslinked superabsorbers with different surface postcrosslinking

US8742024B2 · kind B2 · utility

0Cited by

1References

3Claims

0Family size

Assignee

BASF SE

Inventors

Stefan Bruhns · Mannheim, DE
Thomas Daniel · Waldsee, DE
Dieter Hermeling · Haßloch, DE
Ulrich Riegel · Landstuhl, DE

Key dates

Filing date	Nov 12, 2009
Grant date	Jun 3, 2014
Priority date	—
Expiry date	Mar 25, 2030

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08J2300/14
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A mixture of superabsorbents having differing surface postcrosslinking, more particularly a mixture of differingly surface-postcrosslinked sieve cuts of a base polymer, exhibits improved absorption and retention over a unitarily surface-postcrosslinked superabsorbent.

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