Global Patent Index - EP 1235643 A1

EP 1235643 A1 2002-09-04 - INTERMEDIATE ABSORBENT STRUCTURE WITH INTEGRATED BREATHABLE BARRIER

Title (en)

INTERMEDIATE ABSORBENT STRUCTURE WITH INTEGRATED BREATHABLE BARRIER

Title (de)

ABSORPTIONSZWISCHENSTRUKTUR MIT INTEGRIERTER ATMUNGSAKTIVER SPERRE

Title (fr)

STRUCTURE ABSORBANTE INTERMEDIAIRE AVEC BARRIERE IMPER-RESPIRANTE INTEGREE

Publication

EP 1235643 A1 (EN)

Application

EP 99959378 A

Priority

EP 9909491 W

Abstract (en)

[origin: WO0139880A1] The invention relates to an improved intermediate absorbent structure with an integrated air permeable fluid barrier, said structure intended to be included inside at least one external layer in the finished absorbent article and intended to eliminate a need for a secondary fluid barrier between the absorbent core and the external layer. Said structure is manufactured in the form of a continuous web that can be converted into disposable absorbent articles. The invention comprises (a) an upper layer that is liquid permeable, (b) a lower layer with a hydrohead greater than 8 cm and an air permeability less than 1000 m/s at 196 Pa, and (c) an intermediate layer of absorbent material dispersed between the upper layer and the lower layer. Preferred embodiments include intermediate structures where the lower layer comprises a composite of fine fibers and continuous filaments.

IPC 1-7 (main, further and additional classification)

B01J 20/28; A61F 13/15

IPC 8 full level (invention and additional information)

A61F 13/15 (2006.01); B01J 20/28 (2006.01); B32B 5/00 (2006.01); D04H 13/00 (2006.01)

CPC (invention and additional information)

B32B 5/26 (2013.01); A61F 13/15203 (2013.01); A61F 13/51462 (2013.01); A61F 13/534 (2013.01); B01J 20/28004 (2013.01); B01J 20/28023 (2013.01); B01J 20/28026 (2013.01); B01J 20/2803 (2013.01); B01J 20/28033 (2013.01); B01J 20/2805 (2013.01); B32B 5/00 (2013.01); B32B 7/12 (2013.01); D04H 1/14 (2013.01); D04H 3/02 (2013.01); D04H 3/12 (2013.01); D04H 13/00 (2013.01); A61F 2013/15552 (2013.01); A61F 2013/51437 (2013.01); B32B 2307/724 (2013.01); B32B 2307/726 (2013.01); B32B 2307/728 (2013.01)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 0139880 A1 20010607; AU 1657200 A 20010612; EP 1235643 A1 20020904

INPADOC legal status


2009-12-23 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20090701

2003-10-29 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20030916

2002-09-04 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20020612

2002-09-04 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2002-09-04 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI