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1. WO2002018137 - COMPOSITE SHEET MATERIAL

Publication Number WO/2002/018137
Publication Date 07.03.2002
International Application No. PCT/US2001/027419
International Filing Date 04.09.2001
IPC
A61F 13/15 2006.1
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
B32B 27/12 2006.1
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 essentially comprising synthetic resin
12next to a fibrous or filamentary layer
D04H 13/00 2006.1
DTEXTILES; PAPER
04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING
13Other non-woven fabrics
CPC
A61F 13/51458
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
51characterised by the outer layers
514Backsheet, i.e. the impermeable cover or layer furthest from the skin
51456characterised by its properties
51458being air-pervious or breathable
A61F 13/51478
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
51characterised by the outer layers
514Backsheet, i.e. the impermeable cover or layer furthest from the skin
51474characterised by its structure
51478being a laminate, e.g. multi-layered or with several layers
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
Y10T 442/60
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
442Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
60Nonwoven fabric [i.e., nonwoven strand or fiber material]
Y10T 442/659
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
442Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
60Nonwoven fabric [i.e., nonwoven strand or fiber material]
659Including an additional nonwoven fabric
Y10T 442/674
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
442Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
60Nonwoven fabric [i.e., nonwoven strand or fiber material]
674Nonwoven fabric with a preformed polymeric film or sheet
Applicants
  • E. I. DU PONT DE NEMOURS AND COMPANY [US]/[US]
Inventors
  • HUFFINES, Prentice, Lee
  • LIM, Hyun, Sung
  • MARTIN, Oscar, L., Jr.
  • SUH, Hageun
Agents
  • STEINBERG, Thomas, W.
Priority Data
09/942,40530.08.2001US
60/229,94501.09.2000US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) COMPOSITE SHEET MATERIAL
(FR) MATERIAU COMPOSITE EN FEUILLE
Abstract
(EN)
A moisture vapor permeable, substantially liquid impermeable composite sheet material comprising a moisture vapor permeable monolithic polymeric film having a first side and a second side, a first nonwoven layer comprising a moisture vapor permeable powder-bonded nonwoven layer, said powder-bonded layer comprising a nonwoven web of fibers, wherein greater than 95 weight percent of the fibers in the nonwoven web are compatible with said polymeric film, said first nonwoven layer being adhered to the first side of the polymeric film by extrusion of said film onto said first nonwoven layer, and an optional second moisture vapor permeable nonwoven layer adhered to the second side of the film.
(FR)
Matériau composite en feuille, perméable à la vapeur et l'humidité et sensiblement imperméable aux liquides, qui comprend un film polymère monolithe perméable à la vapeur et l'humidité qui possède un premier et un deuxième côtés, une première couche non tissée comprenant une couche non tissée perméable à la vapeur et l'humidité et liée par poudre, ladite couche liée par poudre comprenant un tissu de fibres non tissées dans lequel plus de 95 % en poids des fibres dans le tissu non tissé sont compatibles avec ce film polymère, ladite première couche non-tissée étant collée au premier côté du film polymère par l'extrusion dudit film sur la première couche non tissée, et éventuellement une deuxième couche non tissée, perméable à la vapeur et l'humidité, collée au deuxième côté du film.
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