Patent · US Expired

Absorbent articles comprising super absorbent polymer having a substantially non-convalently bonded surface coating

US7405341B2 · kind B2 · utility

5Cited by

36References

25Claims

0Family size

Assignee

The Procter & Gamble Company · US

Inventors

Holger Beruda · Schwalbach, DE
Yasue Nakagawa · Bad Soden, DE
Andrea Link · Munich, DE
Axel Meyer · Frankfurt am Main, DE

Key dates

Filing date	Sep 24, 2004
Grant date	Jul 29, 2008
Priority date	—
Expiry date	Oct 18, 2024

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61L15/24
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

The present invention relates to absorbent articles comprising superabsorbent polymer particles. The superabsorbent polymer particles are coated with cationic polymers having 1 to 25 mol/kg, referring to the total weight of the cationic polymers, of cationic groups, which can be protonated. The cationic polymers are not substantially covalently bound to the superabsorbent polymer particles. Furthermore, the superabsorbent polymer particles are not substantially covalently surface cross-linked.

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