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1. WO2000038607 - ABSORBENT STRUCTURES OF CHEMICALLY TREATED CELLULOSE FIBERS

Publication Number WO/2000/038607
Publication Date 06.07.2000
International Application No. PCT/US1999/030791
International Filing Date 22.12.1999
Chapter 2 Demand Filed 20.07.2000
IPC
A61F 13/15 2006.01
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; Absorbent pads
15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
A61L 15/28 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
22containing macromolecular materials
28Polysaccharides or their derivatives
B32B 5/02 2006.01
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
5Layered products characterised by the non-homogeneity or physical structure of a layer
02characterised by structural features of a layer comprising fibres or filaments
D06M 11/17 2006.01
DTEXTILES; PAPER
06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D0664
11Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
07with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
11with halogen acids or salts thereof
17Halides of elements of Groups 3 or 13 of the Periodic System
D06M 11/45 2006.01
DTEXTILES; PAPER
06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D0664
11Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
32with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
36with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
45Oxides or hydroxides of elements of Groups 3 or 13 of the Periodic System; Aluminates
D06M 11/57 2006.01
DTEXTILES; PAPER
06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D0664
11Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
51with sulfur, selenium, tellurium, polonium or compounds thereof
55with sulfur trioxide; with sulfuric acid or thiosulfuric acid or their salts
57Sulfates or thiosulfates of elements of Groups 3 or 13 of the Periodic System, e.g. alums
CPC
A61F 13/53
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
A61F 13/537
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
534having an inhomogeneous composition through the thickness of the pad
537characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
A61F 2013/15544
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
15544Permeability
A61F 2013/530481
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
A61L 15/28
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
22containing macromolecular materials
28Polysaccharides or their derivatives
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
Applicants
  • BKI HOLDING CORPORATION [US/US]; 300 Delaware Avenue Wilmington, DE 19801, US (AllExceptUS)
  • COOK, Jeffery, Todd [US/US]; US (UsOnly)
  • BELL, Robert, Irvin [US/US]; US (UsOnly)
  • FIELDS, Sonja, McNeil [US/US]; US (UsOnly)
  • HUFF, Byron, Jerry, Lee [US/US]; US (UsOnly)
  • MORTON, Gerald, Hunt [US/US]; US (UsOnly)
  • SCHOGGEN, Howard, Leon [US/US]; US (UsOnly)
  • SMITH, David, Jay [US/US]; US (UsOnly)
Inventors
  • COOK, Jeffery, Todd; US
  • BELL, Robert, Irvin; US
  • FIELDS, Sonja, McNeil; US
  • HUFF, Byron, Jerry, Lee; US
  • MORTON, Gerald, Hunt; US
  • SCHOGGEN, Howard, Leon; US
  • SMITH, David, Jay; US
Agents
  • SULLIVAN, Robert, C., Jr. ; Darby & Darby P.C. 805 Third Avenue New York, NY 10022-7513, US
Priority Data
60/113,84924.12.1998US
60/117,56527.01.1999US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ABSORBENT STRUCTURES OF CHEMICALLY TREATED CELLULOSE FIBERS
(FR) STRUCTURES ABSORBANTES DE FIBRES DE CELLULOSE TRAITEES CHIMIQUEMENT
Abstract
(EN)
Disclosed are absorbent structures including fibers bound with a polyvalent cation-containing compound and superabsorbent polymer particles. The fibers exhibit an ion extraction factor of at least 5 %. Also disclosed are multi-strata absorbent structures, such as disposable absorbent articles, including the treated fibers and SAP particles. Further disclosed are methods for preparing absorbent structures including the treated fibers; structures including fibers combined with a polyvalent cation-containing compound; and methods for treating or coating SAP particles with polyvalent cation-containing compounds.
(FR)
Cette invention se rapporte à des structures absorbantes comprenant des fibres liées avec un composé contenant des cations polyvalents, ainsi que des particules de polymère superabsorbant (SAP). Ces fibres possèdent un facteur d'extraction ionique d'au moins 5 %. Cette invention se rapporte également à des structures absorbantes multicouches, telles que des articles absorbants jetables, comprenant ces fibres traitées et ces particules de SAP; ainsi qu'à des procédés servant à préparer des structures absorbantes contenant ces fibres traitées; à des structures renfermant des fibres combinées à un composé contenant des cations polyvalents; et à des procédés servant à traiter ou à enduire des particules de SAP avec des composés contenant des cations polyvalents.
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