US4801480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite prelaminated tape system
Assignee: 3M Co
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Filing: 1987-11-03
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Granted: 1989-01-31
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Expires: 2007-11-03
Abstract
Abstract A composite adhesive tape system for interconnecting surfaces, parts and the like which includes a main fastening tape portion coated with an aggressive, tacky adhesive, a target tape portion and a release tape portion which covers the target tape portion and a centrally located layer which covers part of the release tape and partly folds under the target tape portion and methods for manufacturing and using the tape system as described. This system is particularly useful for providing novel prelaminated tape systems for diapers.
Inventors
- 👤 Victor F. Panza
- 👤 Alejandro Rosso
- 👤 Daniel A. Gayuli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:36
CPC Classifications
B; B32; B32B; B32B7/00; B32B7/04; B32B7/12; A; A61; A61F; A61F13/00; A61F13/15; A61F13/56; A61F13/58; C; C09; C09J; C09J7/00; C09J7/20; Y; Y10; Y10S; Y10S428/00; Y10S428/906; Y10T; Y10T428/00; Y10T428/14; Y10T428/1481; Y10T428/28; Y10T428/2848
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
281 words
A roll of tape comprising an elongated prelaminated tape composite wound convolutely upon itself about an annular core, especially suited for preparing a tape closure for disposable diapers by simply severing said elongated prelaminated tape composite parallel to the axis of the core at intervals corresponding to the predetermined width of said closure, the length of each such closure corresponding to the width of the roll of tape, said prelaminated tape composite comprising in combination (a) a fastening tape divided into a bonded section and a fastening section with the fastening tape comprising an elongated strip of sheet backing material, having first and second edges, being substantially as wide as said tape composite, and having a first layer of normally tacky and pressure-sensitive adhesive coated over substantially one surface of said backing material; (b) a first fingerlift adhered to the first layer of pressure-sensitive adhesive adjacent the second edge thereof; (c) a target tape, having first and second surfaces, the first surface adhered to said first layer of the pressure-sensitive adhesive layer; (d) a second layer of normally tacky and pressure-sensitive adhesive coated on the second surface of the target tape; (e) a second fingerlift adhered to the second layer of normally tacky and pressure sensitive adhesive; (f) a release tape, having first and second surfaces, the first surface adhered to said second layer of pressure-sensitive adhesive layer; (g) a third layer of normally tacky and pressure-sensitive adhesive coated over the second surface of said release tape; and (h) a unifying strip centered over said release tape edge and adhered to the third adhesive layer and to the first adhesive layer on the fastening tape by folding under the target tape.
Claim 2
Dependent Claim
281 words
A roll of tape comprising an elongated prelaminated tape composite wound convolutely upon itself about an annular core, especially suited for preparing a tape closure for disposable diapers by simply severing said elongated prelaminated tape composite parallel to the axis of the core at intervals corresponding to the predetermined width of said closure, the length of each such closure corresponding to the width of the roll of tape, said prelaminated tape composite comprising in combination (a) a fastening tape divided into a bonded section and a fastening section with the fastening tape comprising an elongated strip of sheet backing material, having first and second edges, being substantially as wide as said tape composite, and having a first layer of normally tacky and pressure-sensitive adhesive coated over substantially one surface of said backing material; (b) a first fingerlift adhered to the first layer of pressure-sensitive adhesive adjacent the second edge thereof; (c) a target tape, having first and second surfaces, the first surface adhered to said first layer of the pressure-sensitive adhesive layer; (d) a second layer of normally tacky and pressure-sensitive adhesive coated on the second surface of the target tape; (e) a second fingerlift adhered to the second layer of normally tacky and pressure sensitive adhesive; (f) a release tape, having first and second surfaces, the first surface adhered to said second layer of pressure-sensitive adhesive layer; (g) a third layer of normally tacky and pressure-sensitive adhesive coated over the second surface of said release tape; and (h) a unifying strip centered over said release tape edge and adhered to the third adhesive layer and to the first adhesive layer on the fastening tape by folding under the target tape.
Claim 3
Dependent Claim
32 words
A roll of tape according to claim 1 wherein said first layer of normally tacky and pressure-sensitive adhesive has a peel strength of between about 6 and 10 newtons per 25 mm.
Claim 4
Dependent Claim
32 words
A roll of tape according to claim 1 wherein said second layer of normally tacky and pressure-sensitive adhesive has a peel strength of between about 6 and 10 newtons per 25 mm.
Claim 5
Dependent Claim
32 words
A roll of tape according to claim 1 wherein said third layer of normally tacky and pressure-sensitive adhesive has a peel strength of between about 6 and 10 newtons per 25 mm.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-01-31 | 1992-08-01 | 1993-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-31 | 1996-08-01 | 1997-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-31 | 2000-08-01 | 2001-01-31 | $7700.00 | Window Closed / Lapsed |