Patent · US Active

Absorbent structure comprising water-swellable material

US7947865B2 · kind B2 · utility

27Cited by

103References

11Claims

0Family size

Assignee

The Procter & Gamble Company · US

Inventors

Renae Dianna Fossum · Middletown, US
Mattias Schmidt · Idstein, DE
Axel Meyer · Frankfurt am Main, DE

Key dates

Filing date	Mar 5, 2009
Grant date	May 24, 2011
Priority date	—
Expiry date	Aug 20, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2998
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

An absorbent structure formed from a process of providing water-swellable material that includes water-swellable polymer particles, which are coated with a coating agent. The coating agent is a phase-separating elastomeric material that has a first and second glass transition temperature. The coated water-swellable polymer particles are able to swell without breakage of the coating.

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