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1. (US20020065009) Breathable elastic polymeric film laminates

Office : United States of America
Application Number: 09970397 Application Date: 02.10.2001
Publication Number: 20020065009 Publication Date: 30.05.2002
Grant Number: 6808789 Grant Date: 26.10.2004
Publication Kind : B2
IPC:
B29C 47/04
D03D 17/00
A61F 13/15
B32B 3/10
B26F 1/00
B26F 1/26
B32B 25/00
B32B 25/10
B32B 27/12
B32B 38/04
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
47
Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
04
of multilayered or multicoloured articles
D TEXTILES; PAPER
03
WEAVING
D
WOVEN FABRICS; METHODS OF WEAVING; LOOMS
17
Woven fabrics having elastic or stretch properties due to manner of weaving
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
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
10
characterised by a discontinuous layer, i.e. apertured or formed of separate pieces of material
B PERFORMING OPERATIONS; TRANSPORTING
26
HAND CUTTING TOOLS; CUTTING; SEVERING
F
PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
1
Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
B PERFORMING OPERATIONS; TRANSPORTING
26
HAND CUTTING TOOLS; CUTTING; SEVERING
F
PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
1
Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
26
Perforating by non-mechanical means, e.g. by fluid jet
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
25
Layered products essentially comprising natural or synthetic rubber
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
25
Layered products essentially comprising natural or synthetic rubber
10
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
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
38
Ancillary operations in connection with laminating processes
04
Punching, slitting or perforating
Applicants: The Procter & Gamble Company
Tredegar Film Products Corporation
Inventors: Pelkie, James E.
Curro, John Joseph
Mansfield, Michele Ann
Dobrin, George Christopher
Agents: Fish & Richardson P.C.
Priority Data: 08729629 10.10.1996 US
09050482 30.03.1998 US
09970397 02.10.2001 US
Title: (EN) Breathable elastic polymeric film laminates
Abstract: front page image
(EN)

An elastomeric breathable three-dimensional composite material and the process for producing the same are disclosed. A carrier material is supplied onto a top surface of continuous portions of an elastomeric film to form the composite material. A pressure differential is applied to a bottom surface of film for a period of time sufficient for three-dimensional apertured structures to be formed in the film.