Patent · US Expired

Absorbent core having improved fluid handling properties

US5762641A · kind A · utility

187Cited by

11References

15Claims

0Family size

Assignee

The Procter & Gamble Company · US

Inventors

Christopher P. Bewick-Sonntag · Pescara, IT
Mattias Schmidt · Idstein, DE
Manfred Plischke · Rheinböllen, DE

Key dates

Filing date	Jun 7, 1996
Grant date	Jun 9, 1998
Priority date	—
Expiry date	Jun 7, 2016

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61F2013/530481
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

An absorbent core comprises, in sequence through it thickness, a first structure comprising an upper layer comprising a first fibrous material having compressibility of at least 5 cm.sup.3 /g and a drip capacity of a least 10 g/g, the structure also comprising a first superabsorbent material having a substantially non-decreasing dynamic swelling rate and a second a structure comprising a second fibrous material and a second superabsorbent material having a dynamic swelling pressure of at least 15 g/g at 10 g/cm.sup.2 (0.7 psi), wherein the dynamic swelling rate of the first superabsorbent material is not greater than 2/3 of the dynamic swelling rate of the second superabsorbent material. The absorbent core allows improved fluid handling of body discharges throughout the core and in the subsequent efficient storage of these discharges.

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