Global Patent Index - EP 1089697 A1

EP 1089697 A1 2001-04-11 - ABSORBENT STRUCTURES HAVING FLUID DISTRIBUTION AND STORAGE LAYERS

Title (en)

ABSORBENT STRUCTURES HAVING FLUID DISTRIBUTION AND STORAGE LAYERS

Title (de)

ABSORBIERENDE STRUKTUREN MIT FLÜSSIGKEITSVERTEILUNGSSCHICHTEN UND FLÜSSIGKEITSSPEICHERSCHICHTEN

Title (fr)

STRUCTURES ABSORBANTES A COUCHES DE DISTRIBUTION ET DE STOCKAGE DE FLUIDE

Publication

EP 1089697 A1 (EN)

Application

EP 99955415 A

Priority

  • US 9913175 W
  • US 8845598 P
  • US 8845698 P
  • US 10234498 P
  • US 23278399 A

Abstract (en)

[origin: CA2334351A1] Disclosed is an absorbent structure including a liquid acquisition layer and a fibrous liquid storage layer in liquid communication with the acquisition layer. The storage layer includes SAP particles. The acquisition layer includes synthetic fibers and the fibers are latex bonded. A fluid acquisiti on and/or distribution layer (ADL) containing at least two layers, a top layer of latex bonded synthetic fibers and a bottom layer of latex and/or thermal bonded cellulose fibers and method for preparation thereof are disclosed. Th e synthetic fiber layer is highly porous and provides rapid fluid acquisition under load. The cellulose layer provides z-direction capillary force to pull fluid into the absorbent product, to provide temporary fluid immobilization, and to act as a conduit for fluid to be pulled into unsaturated portion of t he permanent fluid storage layer. The ADL of the invention provides increased protection against leakage relative to single-layer ADLS.

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

A61F 13/15

IPC 8 full level (invention and additional information)

A61F 13/53 (2006.01); A61F 5/44 (2006.01); A61F 13/15 (2006.01); A61F 13/49 (2006.01); B32B 5/24 (2006.01)

CPC (invention and additional information)

A61F 13/53713 (2013.01); A61F 13/53743 (2013.01); A61F 13/5376 (2013.01); A61F 2013/15406 (2013.01); A61F 2013/15447 (2013.01); Y10T 442/659 (2015.04); Y10T 442/664 (2015.04); Y10T 442/668 (2015.04); Y10T 442/673 (2015.04); Y10T 442/698 (2015.04); Y10T 442/699 (2015.04)

Citation (search report)

See references of WO 9963922A1

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

AU 4339199 A 19991230; AU 748366 B2 20020606; BR 9911527 A 20011009; CA 2334351 A1 19991216; CN 1234334 C 20060104; CN 1321075 A 20011107; EP 1089697 A1 20010411; ID 29458 A 20010830; JP 2002517281 A 20020618; NO 20006231 A 20010206; NO 20006231 D0 20001207

INPADOC legal status


2007-07-18 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20070103

2001-04-11 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001208

2001-04-11 [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