US4332253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable diaper and top sheet therefor
Assignee: Kendall Co
•
Filing: 1980-04-15
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Granted: 1982-06-01
•
Expires: 2000-04-15
Abstract
Abstract An absorbent pad such as a disposable diaper having a water-resistant backing sheet, a layer of absorbent material, and a top sheet in the form of a fibrous web with a binder of polymeric material containing at least 1% by weight of combined 2-ethyl hexyl acrylate.
Inventors
- 👤 Peter J. Schoots
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:18
CPC Classifications
A; A61; A61L; A61L15/00; A61L15/16; A61L15/22; A61L15/24; A61F; A61F13/00; A61F13/15; A61F13/51; A61F13/511; A61F13/51121; A61F13/513; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2738; Y10T442/60; Y10T442/659; Y10T442/668; Y10T442/674; Y10T442/675; Y10T442/69
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
59 words
In a disposable diaper having a water-resistant backing sheet, a layer of absorbent material, and a top sheet arranged to be placed in contact with the skin, the improvement comprising a top sheet having a fibrous textile web impregnated with a polymeric binder in which at least 1% by weight of the binder consists of combined 2-ethyl hexyl acrylate.
Claim 2
Dependent Claim
59 words
In a disposable diaper having a water-resistant backing sheet, a layer of absorbent material, and a top sheet arranged to be placed in contact with the skin, the improvement comprising a top sheet having a fibrous textile web impregnated with a polymeric binder in which at least 1% by weight of the binder consists of combined 2-ethyl hexyl acrylate.
Claim 3
Dependent Claim
26 words
A disposable diaper as claimed in claim 1 in which said binder is at least 15% by weight of the total top sheet including fibrous web.
Claim 4
Dependent Claim
52 words
A disposable diaper as claimed in claim 1 or 2 in which binder comprises a blend of (1) a copolymer of an alkyl acrylate in which the alkyl group contains from 1 to 5 carbon atoms with a copolymerizable monomer and (2) a copolymer of 2-ethyl hexyl acrylate with a copolymerizable monomer.
Claim 5
Dependent Claim
30 words
A disposable diaper as claimed in claims 1 or 2 in which the amount of combined 2-ethyl hexyl acrylate is from 3 to 30% by weight of the total binder.
Claim 6
Dependent Claim
61 words
A disposable diaper as claimed in claim 1 in which said binder is from 20 to 50% by weight of the total top sheet including fibrous web, the amount of combined 2-ethyl hexyl acrylate is from 3 to 30% by weight of the total binder, and the weight of said top sheet is from 10 to 30 grams per square yard.
Claim 7
Dependent Claim
33 words
A disposable diaper as claimed in claim 1 in which said binder comprises a copolymer of alkyl acrylates in which the alkyl group contains 1 to 5 carbon atoms and 2-ethyl hexyl acrylate.
Claim 8
Dependent Claim
36 words
A disposable diaper as claimed in claim 1 in which said binder comprises a copolymer containing combined alkyl acrylate in which the alkyl group contains 1 to 5 carbon atoms, vinyl acetate, and 2-ethyl hexyl acrylate.
Claim 9
Dependent Claim
25 words
A disposable diaper as claimed in claim 1 in which said binder comprises a copolymer containing combined butyl acrylate, vinyl acetate, and 2-ethyl hexyl acrylate.
References Cited (Backward Citations)
US2270024A
Cited
US3299010A
Cited
US3489148A
Cited
US3563242A
Cited
US3925442A
Cited
US3926891A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-05-31 | 1985-11-30 | 1986-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-31 | 1989-11-30 | 1990-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-31 | 1993-11-30 | 1994-06-01 | $7700.00 | Window Closed / Lapsed |