US4051853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diaper with extensible fastener
Assignee: Colgate Palmolive Co
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Filing: 1976-08-09
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Granted: 1977-10-04
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Expires: 1996-08-09
Abstract
Abstract A disposable diaper comprising, an absorbent pad assembly, and a tape fastener comprising an elongated pressure-sensitive tape strip having a first section attached to a surface of the pad assembly and a second securement section extending from the first section in a longitudinal direction of the tape strip for securing the diaper about an infant. The tape strip has a backing of a non-reinforced, extensible polymeric film, with the film having an ultimate elongation of greater than 50% in the longitudinal direction of the tape strip, and having modulus properties such that the film has an elongation of 50% at 5-10 lbs./in. width of force as applied to the second section of the tape strip in the longitudinal direction thereof.
Inventors
- 👤 Francis L. Egan, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:13
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/56; A61F13/58; Y; Y10; Y10S; Y10S24/00; Y10S24/11
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
151 words
A disposable diaper comprising, an absorbent pad assembly, and a tape fastener comprising an elongated pressure-sensitive tape strip having a first section attached to a surface defined by a sheet of the pad assembly and a second securement section extending from the first section in a longitudinal direction of the tape strip for securing the diaper about an infant, said tape strip having means for extending and elongating in length previous to failure of said sheet when forces are applied in a longitudinal direction of the strip comprising an adhesively coated backing of a non-reinforced, extensible, polymeric film, with said film having an ultimate elongation of greater than 50% in the longitudinal direction of the tape strip, and having modulus properties such that said film has an elongation of 50% at 5-10 lbs/in. width of force as applied to the second section of the tape strip in the longitudinal direction thereof.
Claim 2
Dependent Claim
151 words
A disposable diaper comprising, an absorbent pad assembly, and a tape fastener comprising an elongated pressure-sensitive tape strip having a first section attached to a surface defined by a sheet of the pad assembly and a second securement section extending from the first section in a longitudinal direction of the tape strip for securing the diaper about an infant, said tape strip having means for extending and elongating in length previous to failure of said sheet when forces are applied in a longitudinal direction of the strip comprising an adhesively coated backing of a non-reinforced, extensible, polymeric film, with said film having an ultimate elongation of greater than 50% in the longitudinal direction of the tape strip, and having modulus properties such that said film has an elongation of 50% at 5-10 lbs/in. width of force as applied to the second section of the tape strip in the longitudinal direction thereof.
Claim 3
Dependent Claim
18 words
The diaper of claim 1 wherein said film has an ultimate elongation of 300-750% in the longitudinal direction.
Claim 4
Dependent Claim
15 words
The diaper of claim 1 wherein said film has a thickness of from 4-10 mils.
Claim 5
Dependent Claim
13 words
The diaper of claim 1 wherein said film comprises a low density polyethylene.
Claim 6
Dependent Claim
23 words
The diaper of claim 1 wherein said film has a breaking strength of 7-12 lbs/in. width of force in the longitudinal direction thereof.
Claim 7
Dependent Claim
23 words
The diaper of claim 1 wherein the machine direction of the film is orientated transverse to the longitudinal direction of the tape strip.
Claim 8
Dependent Claim
37 words
The diaper of claim 1 wherein said pad assembly includes a backing sheet of fluid impervious material, and in which said first section is attached to the backing sheet adjacent a side edge of the pad assembly.
References Cited (Backward Citations)
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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) | 1980-10-03 | 1981-04-04 | 1981-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-03 | 1985-04-04 | 1985-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-03 | 1989-04-04 | 1989-10-04 | $7700.00 | Window Closed / Lapsed |