Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (EP3137669) METHOD OF MAKING BREATHABLE, ELASTIC FILM LAMINATES AND ARTICLES DERIVED THEREFROM

Office : European Patent Office
Application Number: 15785764 Application Date: 27.04.2015
Publication Number: 3137669 Publication Date: 08.03.2017
Publication Kind : A4
Prior PCT appl.: Application Number:US2015027822 ; Publication Number: Click to see the data
IPC:
D04H 13/00
A61F 13/15
A61F 13/49
B32B 3/26
B32B 5/02
B32B 5/04
B32B 27/12
B32B 27/32
D TEXTILES; PAPER
04
BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
H
MAKING 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
13
Other non-woven fabrics
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
F
FILTERS 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
13
Bandages or dressings; Absorbent pads
15
Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
F
FILTERS 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
13
Bandages or dressings; Absorbent pads
15
Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
45
characterised by the shape
49
specially adapted to be worn around the waist, e.g. diapers, nappies
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
3
Layered products essentially comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products essentially having particular features of form
26
characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
5
Layered products characterised by the non-homogeneity or physical structure of a layer
02
characterised by structural features of a layer comprising fibres or filaments
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
5
Layered products characterised by the non-homogeneity or physical structure of a layer
02
characterised by structural features of a layer comprising fibres or filaments
04
characterised by a layer being specifically extensible by reason of its structure or arrangement
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27
Layered products essentially comprising synthetic resin
12
next to a fibrous or filamentary layer
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27
Layered products essentially comprising synthetic resin
32
comprising polyolefins
CPC:
A61F 13/15593
A61F 13/15699
A61F 13/4902
A61F 2013/49023
B32B 3/02
B32B 3/266
B32B 5/022
B32B 5/04
B32B 5/08
B32B 5/26
B32B 7/02
B32B 7/05
B32B 7/08
B32B 7/12
B32B 25/08
B32B 25/14
B32B 25/16
B32B 27/08
B32B 27/12
B32B 27/30
B32B 27/308
B32B 27/32
B32B 27/34
B32B 27/36
B32B 2250/04
B32B 2250/40
B32B 2262/0246
B32B 2262/0253
B32B 2262/0261
B32B 2262/0284
B32B 2262/062
B32B 2262/067
B32B 2262/08
B32B 2262/12
B32B 2262/14
B32B 2270/00
B32B 2274/00
B32B 2307/50
B32B 2307/51
B32B 2307/724
B32B 2307/7265
B32B 2437/00
B32B 2437/02
B32B 2555/00
B32B 2555/02
Applicants: 3M INNOVATIVE PROPERTIES CO
Inventors: NELSON TODD L
ANDREWS ROBERT E
SIKORSKI WILLIAM H JR
Priority Data: 201461987919 02.05.2014 US
2015027822 27.04.2015 US
Title: (DE) VERFAHREN ZUR HERSTELLUNG VON ATMUNGSAKTIVEN ELASTISCHEN FOLIENLAMINATEN UND DARAUS HERGESTELLTE ARTIKEL
(EN) METHOD OF MAKING BREATHABLE, ELASTIC FILM LAMINATES AND ARTICLES DERIVED THEREFROM
(FR) PROCÉDÉ DE FABRICATION DE STRATIFIÉS DE FILM ÉLASTIQUE RESPIRANTS ET ARTICLES DÉRIVÉS CORRESPONDANTS
Abstract:
(EN) A method of making a breathable, elastic film laminate comprising the steps of stretching an elastic film in a first direction, spot welding at least one nonwoven web to the film while it is stretched, and stretching the film laminate in a second direction to create apertures in the film. Articles derived from the method are also described.
(FR) L'invention concerne un procédé de fabrication d'un stratifié de film élastique respirant, comprenant les étapes consistant à étirer un film élastique dans une première direction, souder par points au moins une bande non tissée sur le film pendant qu'il est étiré, et étirer le stratifié de film dans une deuxième direction pour créer des ouvertures dans le film. L'invention concerne également des articles dérivés dudit procédé.