Processing

Please wait...

Settings

Settings

1. WO2000038749 - ABSORBENT STRUCTURE AND METHOD FOR PRODUCTION

Publication Number WO/2000/038749
Publication Date 06.07.2000
International Application No. PCT/US1999/029980
International Filing Date 16.12.1999
Chapter 2 Demand Filed 06.06.2000
IPC
A61L 15/60 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
15Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
16Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
42Use of materials characterised by their function or physical properties
60Liquid-swellable gel-forming materials, e.g. super-absorbents
CPC
A61F 13/5323
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
13Bandages or dressings
15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body
53characterised by the absorbing medium
531having a homogeneous composition through the thickness of the pad
532inhomogeneous in the plane of the pad
5323having absorbent material located in discrete regions, e.g. pockets
A61F 2013/15406
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
13Bandages or dressings
15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body
15203Properties of the article, e.g. stiffness or absorbency
15284characterized by quantifiable properties
15406Basis weight
A61F 2013/530532
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
13Bandages or dressings
15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body
53characterised by the absorbing medium
530481having superabsorbent materials, i.e. highly absorbent polymer gel materials
53051being only in particular parts or specially arranged
530532the maximum being at certain depth in the thickness
A61L 15/60
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
15Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
16Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
42Use of materials characterised by their function or physical properties
60Liquid-swellable gel-forming materials, e.g. super-absorbents
B32B 2262/062
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
2262Composition of fibres which form a fibrous or filamentary layer or are present as additives
06Vegetal fibres
062Cellulose fibres, e.g. cotton
B32B 27/12
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27Layered products comprising ; a layer of; synthetic resin
12next to a fibrous or filamentary layer
Applicants
  • KIMBERLY-CLARK WORLDWIDE, INC. [US/US]; 401 North Lake Street Neenah, WI 54956, US (AllExceptUS)
  • DUTKIEWICZ, Jacek [PL/US]; US (UsOnly)
  • GOERG-WOOD, Kristin [US/US]; US (UsOnly)
  • GUAY, Donald [US/US]; US (UsOnly)
  • KALMON, Michael [US/US]; US (UsOnly)
  • KRESSNER, Bernhardt [US/US]; US (UsOnly)
  • LI, Yong [US/US]; US (UsOnly)
  • QIN, Jian [US/US]; US (UsOnly)
  • SZYMONSKI, Krzysztof [US/US]; US (UsOnly)
  • TANZER, Richard [US/US]; US (UsOnly)
  • WALLAJAPET, Raj [IN/US]; US (UsOnly)
Inventors
  • DUTKIEWICZ, Jacek; US
  • GOERG-WOOD, Kristin; US
  • GUAY, Donald; US
  • KALMON, Michael; US
  • KRESSNER, Bernhardt; US
  • LI, Yong; US
  • QIN, Jian; US
  • SZYMONSKI, Krzysztof; US
  • TANZER, Richard; US
  • WALLAJAPET, Raj; US
Agents
  • GLANTZ, Douglas; 5260 Deborah Court Doylestown, PA 18901-1949, US
Priority Data
60/113,58324.12.1998US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ABSORBENT STRUCTURE AND METHOD FOR PRODUCTION
(FR) STRUCTURE ABSORBANTE ET PROCEDE DE FABRICATION
Abstract
(EN)
A composite absorbent structure and method are disclosed including providing a first wicking layer having preferred liquid transport properties in a preferred contact with a second absorbent retention layer. The composite absorbent structure of the present invention provides preferred liquid transport and liquid retention properties. The composite absorbent structure has a first wicking layer in a preferred contact with the second retention layer by a novel intimate contact means effective to achieve a Contact Intimacy Ratio providing the preferred liquid transport and liquid retention functions when the first wicking layer and the second absorbent retention layer are combined together in accordance with the present invention. In one aspect, a bonding agent is used in the present invention in combination with the first wicking layer of wettable fibers and a second retention layer of a hydrogel-forming polymeric material, preferably superabsorbent, to form a composite absorbent structure having the preferred Contact Intimacy Ratio and providing the preferred liquid transport function and the preferred liquid retention function.
(FR)
L'invention concerne une structure absorbante composite et son procédé de fabrication consistant à fournir une première couche mèche possédant des propriétés de transport de liquide préférées en contact avec une seconde couche de rétention absorbante. La structure absorbante composite de la présente invention offre d'excellentes propriétés de transport et de rétention de liquide. Cette structure comporte une première couche mèche en contact avec une seconde couche de rétention au moyen d'un nouveau dispositif de contact intime, permettant d'obtenir un taux d'intimité de contact offrant les propriétés de transport et de rétention de liquide préférées, lorsque la première mèche et la seconde couche de rétention absorbante sont combinées selon la présente invention. Dans un mode de réalisation, un liant est utilisé en combinaison avec la première couche mèche de fibres mouillables et une seconde couche de rétention constituée d'une matière polymère formant un hydrogel, de préférence super-absorbante, de façon à former une structure absorbante composite possédant le taux d'intimité de contact préféré et offrant les propriétés de transport et de rétention de liquide préférées.
Also published as
DE19983835
GBGB0116840.0
Other related publications
Latest bibliographic data on file with the International Bureau