WO1999014044B1 - Breathable elastic film and laminate - Google Patents

Breathable elastic film and laminate

Info

Publication number
WO1999014044B1
WO1999014044B1 PCT/US1998/018922 US9818922W WO9914044B1 WO 1999014044 B1 WO1999014044 B1 WO 1999014044B1 US 9818922 W US9818922 W US 9818922W WO 9914044 B1 WO9914044 B1 WO 9914044B1
Authority
WO
WIPO (PCT)
Prior art keywords
elastic film
film
laminate
accordance
stretched
Prior art date
Application number
PCT/US1998/018922
Other languages
French (fr)
Other versions
WO1999014044A1 (en
Inventor
Michael Tod Morman
Cindy Janja Milicevic
Original Assignee
Kimberly Clark Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25458405&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO1999014044(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Kimberly Clark Co filed Critical Kimberly Clark Co
Priority to DE69834819T priority Critical patent/DE69834819T2/en
Priority to EP98946033A priority patent/EP1011966B1/en
Priority to AU93140/98A priority patent/AU734544B2/en
Priority to KR1020007002668A priority patent/KR100563878B1/en
Priority to CA002302530A priority patent/CA2302530C/en
Priority to BR9812214-2A priority patent/BR9812214A/en
Publication of WO1999014044A1 publication Critical patent/WO1999014044A1/en
Publication of WO1999014044B1 publication Critical patent/WO1999014044B1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F13/15707—Mechanical treatment, e.g. notching, twisting, compressing, shaping
    • A61F13/15731—Treating webs, e.g. for giving them a fibrelike appearance, e.g. by embossing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
    • A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
    • A61F13/51474—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its structure
    • A61F13/51478—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its structure being a laminate, e.g. multi-layered or with several layers
    • A61F13/5148—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its structure being a laminate, e.g. multi-layered or with several layers having an impervious inner layer and a cloth-like outer layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B32B27/327—Layered products comprising a layer of synthetic resin comprising polyolefins comprising polyolefins obtained by a metallocene or single-site catalyst
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0012—Mechanical treatment, e.g. roughening, deforming, stretching
    • B32B2038/0028—Stretching, elongating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0253—Polyolefin fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B32B2307/7246—Water vapor barrier
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/732—Dimensional properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2437/00—Clothing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2555/00—Personal care
    • B32B2555/02—Diapers or napkins
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30—Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3325—Including a foamed layer or component
    • Y10T442/3366—Woven fabric is coated, impregnated, or autogenously bonded
    • Y10T442/3374—Coating or impregnation includes particulate material other than fiber
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30—Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3854—Woven fabric with a preformed polymeric film or sheet

Abstract

A soft, breathable elastic laminate of an elastic film (10) loaded with a filler having a particle size suitable for pore formation and stretched in at least two directions to form a plurality of micropores bonded to a nonwoven web (30). In accordance with one embodiment, the elastic film is water vapor impermeable prior to being stretched.

Claims

AMENDED CLAIMS
[received by the International Bureau on 5 March 1999 (05.03.99); original claim 25 cancelled; original claims 1, 18, 19, 20, 32, 38, 43, 46,
48, 49, 50, 51, 52 and 53 amended; remaining claims unchanged (9 pages)]
1. A soft, breathable elastic laminate comprising: a subst-antially water vapor impermeable elastic film loaded with a filler having a particle size suitable for pore formation, said film having been stretched in at least two directions to form a plurality of micropores; and a nonwoven web bonded to said elastic film after stretching of said elastic film in at least one of said directions, said laminate being elongatable to an elongated, bias length at least 150% of its relaxed unbiased length.
2. A laminate in accordance with Claim 1 , wherein said two directions of stretch are perpendicular to one another.
3. A laminate in accordance with Claim 1, wherein said elastic film is stretched in said second direction after bonding of said nonwoven web.
4. A laminate in accordance with Claim 1 , wherein said elastic film is stretched in said second direction prior to bonding of said nonwoven web.
5. A laminate in accordance with Claim 1 , wherein said nonwoven web is bonded to said elastic film while said elastic film is stretched in at least one of said two directions.
6. A laminate in accordance with Claim 1 , wherein said elastic film is annealed, said annealing occurring during said stretching of said film.
7. A laminate in accordance with Claim 1, wherein said elastic film comprises a metallocene ethylene-based polymer.
8. A laminate in accordance with Claim 7, wherein said polymer is selected from the group consisting of copolymers of ethylene and butylene, copolymers of
24 ethylene and hexene, copolymers of ethylene and octene, and combinations thereof.
9. A laminate in accordance with Claim 1 , wherein said filler comprises in a range of about 10% to about 50% by volume of said elastic film.
10. A laminate in accordance with Claim 7, wherein said metallocene ethylene-based polymer has a density in a range of about 0.850 to about 0.917 g/cc.
11. A laminate in accordance with Claim 1 , wherein said elastic film has an activation permanent set of greater than about 50%.
12. A laminate in accordance with Claim 11, wherein said film has an activation permanent set in a range of about 100% to about 400%.
13. A laminate in accordance with Claim 1 , wherein said nonwoven web comprises a spunbond web.
14. A laminate in accordance with Claim 13, wherein said spunbond web comprises polypropylene.
15. A laminate in accordance with Claim 1 having an WTVR in a range of about 1000 to about 5000 g/m2/24 hours.
16. A laminate in accordance with Claim 1 further comprising a second nonwoven web.
17. A laminate in accordance with Claim 1 , wherein said filler is calcium carbonate.
25
18. A diaper outercover comprising : a substantially water vapor impermeable elastic film loaded with a filler having a particle size suitable for pore formation and stretched in at least two directions to form a plurality of micropores; and a nonwoven web bonded to said elastic film after stretching of said elastic film in at least one of said directions, said outercover being elongatable to an elongated, bias length at least 150% of its relaxed unbiased length.
19. A surgical gown comprising: a substantially water vapor impermeable elastic film loaded with a filler having a particle size suitable for pore formation and stretched in at least two directions to form a plurality of micropores; and a nonwoven web bonded to said elastic film after stretching of said elastic film in at least one of said directions, said gown being elongatable to an elongated, bias length at least 150% of its relaxed unbiased length.
20. A breathable elastic film comprising: a substantially water vapor impermeable elastic film loaded with a filler having a particle size suitable for pore formation and stretched in at least two directions to form a plurality of micropores, and having a permanent set after a last said stretching of less than about 30% in a direction of said last stretching.
21. A film in accordance with Claim 20, wherein said filler is calcium carbonate.
22. A film in accordance with Claim 21 , wherein said calcium carbonate comprises in a range of about 10% to about 50% by volume of said elastic film.
23. A film in accordance with Claim 20 having a pore activation permanent set of greater than about 50%.
26
24. A film in accordance with Claim 20, wherein said filler comprises in a range of about 10% to about 50% by volume of said elastic film.
26. A film in accordance with Claim 20, wherein said substantially water vapor impermeable elastic film is stretched in a machine direction followed by stretching in a cross-machine direction.
27. A film in accordance with Claim 20, wherein said substantially water vapor impermeable elastic film is stretched in a cross-machine direction followed by stretching in a machine direction.
28. A film in accordance with Claim 20, wherein said substantially water vapor impermeable elastic film comprises a metallocene ethylene-based polymer.
29. A film in accordance with Claim 28, wherein said metallocene ethylene-based polymer has a density in a range of about 0.850 to about 0.917 g/cc.
30. A film in accordance with Claim 20, wherein said filler has an average said particle size in a range of about 0.5 to about 8 microns in diameter.
31. A film in accordance with Claim 20, wherein a nonwoven web is bonded thereto, forming a film/nonwoven laminate.
32. A process for producing a soft, breathable elastic laminate comprising the steps of: stretching a substantially water vapor impermeable elastic film loaded with a filler having a particle size suitable for pore formation in at least two directions so as to form a plurality of micropores; and bonding a nonwoven web to said stretched elastic film, forming a laminate which is elongatable to an elongated, bias length at least 150% of its relaxed unbiased length.
27
33. A process in accordance with Claim 32, wherein said substantially water vapor impermeable elastic film is stretched in a machine direction followed by stretching in a cross-machine direction.
34. A process in accordance with Claim 32, wherein said substantially water vapor impermeable elastic film is stretched in a cross-machine direction followed by stretching in a machine direction.
35. A process in accordance with Claim 32, wherein said substantially water vapor impermeable elastic film comprises a metallocene ethylene-based polymer.
36. A process in accordance with Claim 35, wherein said metallocene ethylene-based polymer has a density in a range of about 0.850 to about 0.917 g/cc.
37. A process in accordance with Claim 32, wherein said filler comprises in a range of about 10% to about 50% by volume of said elastic film.
38. A process for producing a breathable elastomeric film comprising the steps of: stretching a substantially water vapor impermeable elastic film loaded with a filler having a particle size suitable for pore formation in at least two directions so as to form a plurality of micropores, said film having a permanent set after a last said stretching of less than about 30% in a direction of said last stretching.
39. A process in accordance with Claim 38, wherein said substantially water vapor impermeable elastic film is stretched in a machine direction followed by stretching in a cross-machine direction.
40. A process in accordance with Claim 38, wherein said substantially water vapor impermeable elastic film is stretched in a cross-machine direction followed by
28 stretching in a machine direction.
41. A process in accordance with Claim 38, wherein said substantially water vapor impermeable elastic film comprises a metallocene ethylene-based polymer.
42. A process in accordance with Claim 41, wherein said metallocene ethylene-based polymer has a density in a range of about 0.850 to about 0.917 g/cc.
43. A soft, breathable elastic laminate comprising: a substantially water vapor impermeable elastic film loaded with a filler having a particle size suitable for pore formation, said film having been stretched in at least two directions to form a plurality of micropores; and a neckable nonwoven web bonded to said elastic film after stretching of said elastic film in at least one of said directions, said laminate being elongatable to an elongated, bias length at least 150% of its relaxed unbiased length.
44. A laminate in accordance with Claim 43, wherein said neckable nonwoven web is necked prior to being bonded to said elastic film.
45. A laminate in accordance with Claim 44, wherein said necked nonwoven web is bonded to said elastic film while said elastic film is stretched in a direction perpendicular to a necking direction.
46. A soft, breathable elastic laminate comprising: a substantially water vapor impermeable elastic film loaded with a filler having a particle size suitable for pore formation, said film having been stretched in at least two directions to form a plurality of micropores; and a necked nonwoven web bonded to said elastic film after stretching of said elastic film in at least one of said directions, said laminate being elongatable to an elongated, bias length at least 150% of its relaxed unbiased length.
29
47. A laminate in accordance with Claim 46, wherein said necked nonwoven web is bonded to said elastic film while said elastic film is stretched in a direction perpendicular to a necking direction.
48. A soft, breathable elastic laminate comprising: a substantially water vapor impermeable elastic film loaded with a filler having a particle size suitable for pore formation, said film having been stretched in at least two directions to form a plurality of micropores; and a necked spunbond bonded to said elastic film after stretching of said elastic film in said at least two directions, said laminate being elongatable to an elongated, bias length at least 150% of its relaxed unbiased length.
49. A soft, breathable elastic laminate comprising: a substantially water vapor impermeable elastic film loaded with a filler having a particle size suitable for pore formation, said film having been stretched in at least two directions to form a plurality of micropores; and a necked spunbond bonded to said elastic film, whereby said film is stretched in a machine direction and said necked spunbond is bonded to said film after said stretching in said machine direction, forming said laminate, and said laminate is stretched in a cross- machine direction, said laminate being elongatable to an elongated, bias length at least 150% of its relaxed unbiased length.
50. A soft, breathable elastic laminate comprising: a substantially water vapor impermeable elastic film loaded with a filler having a particle size suitable for pore formation, said film having been stretched in a machine direction and a cross-machine direction to form a plurality of micropores; and a spunbond bonded to said elastic film while said elastic film is stretched in said machine direction, said laminate being elongatable to an elongated, bias length at least 150% of its relaxed unbiased length.
30
51. A soft, breathable elastic laminate comprising: a substantially water vapor impermeable elastic film loaded with a filler having a particle size suitable for pore formation, said film having been stretched in a machine direction and a cross-machine direction to form a plurality of micropores; and a spunbond bonded to said elastic film while said elastic film is stretched in said machine direction and said cross-machine direction, said laminate being elongatable to an elongated, bias length at least 150% of its relaxed unbiased length.
52. A soft, breathable elastic laminate comprising: a substantially water vapor impermeable elastic film loaded with a filler having a particle size suitable for pore formation, said film having been stretched in a machine direction and a cross-machine direction to form a plurality of micropores; and a necked spunbond bonded to said elastic film while said elastic film is stretched in said machine direction, said laminate being elongatable to an elongated, bias length at least 150%) of its relaxed unbiased length.
53. A breathable elastic film comprising: an elastic film loaded with a filler having a particle size suitable for pore formation and stretched in at least two directions to form a plurality of micropores, and having a permanent set after a last said stretching of less than about 30% in a direction of said last stretching.
54. A breathable elastic film in accordance with Claim 53, wherein said elastic film is substantially water vapor impermeable.
55. A breathable elastic film in accordance with Claim 53, wherein said elastic film is water vapor permeable.
56. A film in accordance with Claim 53, wherein said filler is calcium carbonate.
31
57. A film in accordance with Claim 56, wherein said calcium carbonate comprises in a range of about 10% to about 50%> by volume of said elastic film.
58. A film in accordance with Claim 53, wherein said filler comprises in a range of about 10% to about 50% by volume of said elastic film.
59. A film in accordance with Claim 53, wherein said elastic film is stretched in a machine direction followed by stretching in a cross-machine direction.
60. A film in accordance with Claim 53, wherein said elastic film is stretched in a cross-machine direction followed by stretching in a machine direction.
61. A film in accordance with Claim 53, wherein a nonwoven web is bonded thereto, forming a film/nonwoven laminate.
62. A film in accordance with Claim 53, wherein the WVTR of said film is at least about 300 g/m2/24 hours greater than the WVTR of said elastic film without said filler after being stretched the same as said elastic film loaded with said filler.
32 STATEMENT UNDER ARTICLE 19
Claims 2-17, 21-24, 26-31, 33-37, 39-42, 44-45, 47, and 54-62 remain
the same, as originally filed. Applicant is submitting replacement pages 15-23,
inclusive. Original Claims 1, 18, 19, 20, 32, 38, 43, 46, 48, 49, 50, 51, 52 and 53 have been deleted and replaced with new Claims 1, 18, 19, 20, 32, 38, 43, 46, 48, 49, 50,
51, 52 and 53. Original Claim 25 has been deleted.
Claims 1, 18, 19, 32, 43, 46, 48, 49, 50, 51 and 52 have been amended
to more clearly recite the laminate and articles using the laminate of the claimed
invention. More particularly, these claims have been amended so as to further
characterize the elasticity of the claimed laminate and articles using said laminate
consistent with the definition of the term "elastic" as set forth in the description.
Claims 20, 38 and 53 have been amended to require that the elastic film
of the claimed invention have a specified permanent set consistent with original Claim
25 of the application as originally filed.
33
PCT/US1998/018922 1997-09-15 1998-09-10 Breathable elastic film and laminate WO1999014044A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE69834819T DE69834819T2 (en) 1997-09-15 1998-09-10 BREATHABLE, ELASTIC FILM AND MULTILAYER
EP98946033A EP1011966B1 (en) 1997-09-15 1998-09-10 Breathable elastic film and laminate
AU93140/98A AU734544B2 (en) 1997-09-15 1998-09-10 Breathable elastic film and laminate
KR1020007002668A KR100563878B1 (en) 1997-09-15 1998-09-10 Breathable Elastic Film and Laminate
CA002302530A CA2302530C (en) 1997-09-15 1998-09-10 Breathable elastic film and laminate
BR9812214-2A BR9812214A (en) 1997-09-15 1998-09-10 Breathable elastic film and laminate

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/929,758 1997-09-15
US08/929,758 US5932497A (en) 1997-09-15 1997-09-15 Breathable elastic film and laminate

Publications (2)

Publication Number Publication Date
WO1999014044A1 WO1999014044A1 (en) 1999-03-25
WO1999014044B1 true WO1999014044B1 (en) 1999-05-06

Family

ID=25458405

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/018922 WO1999014044A1 (en) 1997-09-15 1998-09-10 Breathable elastic film and laminate

Country Status (9)

Country Link
US (1) US5932497A (en)
EP (1) EP1011966B1 (en)
KR (1) KR100563878B1 (en)
CN (1) CN1273550A (en)
AU (1) AU734544B2 (en)
BR (1) BR9812214A (en)
CA (1) CA2302530C (en)
DE (1) DE69834819T2 (en)
WO (1) WO1999014044A1 (en)

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CN1273550A (en) 2000-11-15
AU9314098A (en) 1999-04-05
DE69834819T2 (en) 2006-12-21
CA2302530A1 (en) 1999-03-25
WO1999014044A1 (en) 1999-03-25
US5932497A (en) 1999-08-03
DE69834819D1 (en) 2006-07-20
KR20010023958A (en) 2001-03-26
BR9812214A (en) 2000-07-18
EP1011966B1 (en) 2006-06-07
AU734544B2 (en) 2001-06-14
KR100563878B1 (en) 2006-03-28
EP1011966A1 (en) 2000-06-28
CA2302530C (en) 2006-11-28

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