Global Patent Index - EP 1021214 A1

EP 1021214 A1 2000-07-26 - ABSORBENT MATERIALS HAVING IMPROVED STRUCTURAL STABILITY IN DRY AND WET STATES AND MAKING METHODS THEREFOR

Title (en)

ABSORBENT MATERIALS HAVING IMPROVED STRUCTURAL STABILITY IN DRY AND WET STATES AND MAKING METHODS THEREFOR

Title (de)

ABSORPTIONSMATERIALIEN MIT VERBESSERTER STRUKTURELLER STABILITÄT IM FEUCHTEN UND TROCKENEN ZUSTAND UND VERFAHREN ZU IHRER HERSTELLUNG

Title (fr)

MATERIAUX ABSORBANTS A STABILITE DE STRUCTURE ACCRUE A L'ETAT SEC AUSSI BIEN QU'A L'ETAT HUMIDE ET LEURS PROCEDES DE PRODUCTION

Publication

EP 1021214 A1 (EN)

Application

EP 97922366 A

Priority

  • JP 10273696 A
  • US 9706603 W

Abstract (en)

[origin: WO9739780A1] An absorbent material having substantially improved structural stability in the dry and wet states. The absorbent materials are significantly less susceptible to handling losses of absorbent gelling particles during manufacturing operations. The absorbent material also is not subject to shifting of the absorbent gelling particles during or after swelling by fluids. The absorbent material comprises absorbent gelling particles comprising (a) a water-insoluble absorbent hydrogel-forming polymer; (b) a polycationic polymer bonded to the absorbent gelling particles at the surface thereof; (c) glue microfibers dispersed in the absorbent gelling particles; and (d) a carrier layer bonded to the absorbent gelling particles through the glue microfibers. The invention further relates to a method of making the absorbent materials, and the absorbent articles comprising the absorbent materials.

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

A61L 15/60; A61L 15/58

IPC 8 full level (invention and additional information)

A61F 13/53 (2006.01); A61F 13/15 (2006.01); A61F 13/49 (2006.01); A61L 15/22 (2006.01); A61L 15/58 (2006.01); A61L 15/60 (2006.01); B01J 20/26 (2006.01); B32B 27/00 (2006.01); C08L 101/14 (2006.01); C09J 7/00 (2006.01); C09J 7/02 (2006.01); C09J 7/04 (2006.01); C09J 11/00 (2006.01); C09J 109/06 (2006.01); C09J 121/00 (2006.01); C09J 201/00 (2006.01)

CPC (invention and additional information)

C08L 101/14 (2013.01); A61L 15/225 (2013.01); A61L 15/58 (2013.01); A61L 15/60 (2013.01)

Combination set (CPC)

A61L 15/225 + A61L 15/60 + A61L 15/58 + C08L 79/02

Citation (search report)

See references of WO 9739780A1

Designated contracting state (EPC)

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

EPO simple patent family

WO 9739780 A1 19971030; AU 2805997 A 19971112; CA 2251931 A1 19971030; CA 2251931 C 20050222; EP 1021214 A1 20000726; JP 3720118 B2 20051124; JP H09290000 A 19971111; KR 20000010625 A 20000225

INPADOC legal status


2003-08-06 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030204

2002-09-04 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20020723

2000-07-26 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19981016

2000-07-26 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

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