Patent US2823159A successfully refreshed from Google Patents.
Patent US5628856A successfully refreshed from Google Patents.
US5628856A
Expired / Lapsed
US
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Method for forming a composite elastic material
Assignee: Procter and Gamble Co
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Filing: 1996-04-29
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Granted: 1997-05-13
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Expires: 2016-04-29
Abstract
Abstract A method for forming a composite elastic material. An elastic member having at least one elastic strand is fed onto a rotating forming structure exhibiting a multiplicity of apertures therein. The elastic member has a surface facing the forming structure and another surface facing away from the forming structure. A thermoplastic film is extruded onto the surface of the elastic member facing away from the forming structure. A pneumatic vacuum is applied to the thermoplastic film and the elastic member so that the thermoplastic film is simultaneously apertured and bonded to the elastic member thereby forming a breathable composite elastic material.
Inventors
- 👤 George C. Dobrin
- 👤 Karen M. Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:14
CPC Classifications
B; B32; B32B; B32B38/00; B32B38/04; A; A61; A61F; A61F13/00; A61F13/15; A61F13/15577; A61F13/15585; A61F13/15593; A61F13/45; A61F13/49; A61F13/49007; A61F2013/49042; A61F2013/49044; A61F2013/49046; A61F2013/49047; A61F2013/49049; A61F2013/4905; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1056; Y10T156/1057; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24322
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
107 words
A method for forming a composite elastic material, said method comprising the steps of: a) feeding an elastic member comprising at least one elastic strand onto a rotating forming structure exhibiting a multiplicity of apertures therein, said elastic member having a surface facing said forming structure and a surface facing away from said forming structure; b) extruding a thermoplastic film onto the surface of the elastic member facing away from the forming structure; and c) applying a pneumatic vacuum to the thermoplastic film and the elastic member so that the thermoplastic film is simultaneously apertured and bonded to the elastic member while still on said forming structure.
Claim 2
Independent Claim
107 words
A method for forming a composite elastic material, said method comprising the steps of: a) feeding an elastic member comprising at least one elastic strand onto a rotating forming structure exhibiting a multiplicity of apertures therein, said elastic member having a surface facing said forming structure and a surface facing away from said forming structure; b) extruding a thermoplastic film onto the surface of the elastic member facing away from the forming structure; and c) applying a pneumatic vacuum to the thermoplastic film and the elastic member so that the thermoplastic film is simultaneously apertured and bonded to the elastic member while still on said forming structure.
Claim 3
Dependent Claim
13 words
The method of claim 1 wherein said elastic member comprises an elastic scrim.
Claim 4
Dependent Claim
25 words
The method of claim 1 wherein said elastic member comprises a plurality of longitudinal strands and a plurality of transverse strands interconnected to one another.
Claim 5
Dependent Claim
13 words
The method of claim 3 wherein said longitudinal strands comprise an elastic material.
Claim 6
Dependent Claim
13 words
The method of claim 4 wherein said transverse strands comprise a thermoplastic material.
Claim 7
Dependent Claim
13 words
The method of claim 3 wherein said transverse strands comprise an elastic material.
Claim 8
Dependent Claim
13 words
The method of claim 6 wherein said longitudinal strands comprise a thermoplastic material.
Claim 9
Dependent Claim
17 words
The method of claim 1 wherein said composite elastic material forms a portion of an absorbent article.
Claim 10
Dependent Claim
18 words
The method of claim 8 wherein said composite elastic material forms an elasticized waistband in said absorbent article.
Claim 11
Dependent Claim
19 words
The method of claim 8 wherein said composite elastic material forms an elasticized side panel in said absorbent article.
Claim 12
Independent Claim
95 words
A method for forming a composite elastic material, said method comprising the steps of: a) feeding an elastic member comprising at least one elastic strand onto a rotating forming structure exhibiting a multiplicity of apertures therein, said elastic member having a surface facing said forming structure and a surface facing away from said forming structure; b) extruding a thermoplastic film onto the surface of the elastic member facing away from the forming structure; and c) simultaneously aperturing the thermoplastic film and bonding the thermoplastic film to the elastic member while still on said forming structure.
Claim 13
Independent Claim
95 words
A method for forming a composite elastic material, said method comprising the steps of: a) feeding an elastic member comprising at least one elastic strand onto a rotating forming structure exhibiting a multiplicity of apertures therein, said elastic member having a surface facing said forming structure and a surface facing away from said forming structure; b) extruding a thermoplastic film onto the surface of the elastic member facing away from the forming structure; and c) simultaneously aperturing the thermoplastic film and bonding the thermoplastic film to the elastic member while still on said forming structure.
Claim 14
Dependent Claim
13 words
The method of claim 11 wherein said elastic member comprises an elastic scrim.
Claim 15
Dependent Claim
25 words
The method of claim 11 wherein said elastic member comprises a plurality of longitudinal strands and a plurality of transverse strands interconnected to one another.
Claim 16
Dependent Claim
13 words
The method of claim 13 wherein said longitudinal strands comprise an elastic material.
Claim 17
Dependent Claim
13 words
The method of claim 14 wherein said transverse strands comprise a thermoplastic material.
Claim 18
Dependent Claim
13 words
The method of claim 13 wherein said transverse strands comprise an elastic material.
Claim 19
Dependent Claim
13 words
The method of claim 16 wherein said longitudinal strands comprise a thermoplastic material.
Claim 20
Dependent Claim
17 words
The method of claim 11 wherein said composite elastic material forms a portion of an absorbent article.
Claim 21
Dependent Claim
18 words
The method of claim 18 wherein said composite elastic material forms an elasticized waistband in said absorbent article.
Claim 22
Dependent Claim
19 words
The method of claim 18 wherein said composite elastic material forms an elasticized side panel in said absorbent article.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-05-12 | 2000-11-11 | 2001-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-05-12 | 2004-11-11 | 2005-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-05-12 | 2008-11-11 | 2009-05-13 | $7700.00 | Window Closed / Lapsed |