US4327730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Textured thermoplastic film and product manufactured therefrom
Assignee: Procter and Gamble Co
•
Filing: 1981-01-19
•
Granted: 1982-05-04
•
Expires: 2001-01-19
Abstract
Abstract A disposable diaper is disclosed having a textured topsheet of thermoplastic material. The topsheet is manufactured from a thermoplastic sheet surface of which is imparted with a multiplicity of nubbles. The nubbles do not substantially alter the macroscopic profile of the film, but do impart a more clothlike tactile impression and reduced gloss to the film.
Inventors
- 👤 Eugene R. Sorensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:47
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/51; A61F13/511; A61F13/512; A61F13/51104; B; B26; B26F; B26F1/00; B26F1/26; B29; B29C; B29C51/00; B29C51/18; B29C51/20; B29C51/22; B29C51/225; B29C59/00; B29C59/02; B29C59/06; A61F13/15577; A61F2013/15821; A61F13/45; A61F13/49; A61F13/495; A61F2013/4958; A61F2013/51078; B29C59/022; B29C2059/023; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24281
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
69 words
A disposable diaper comprising: a fluid permeable topsheet, said topsheet being a thermoplastic film having a plurality of perforations and a plurality of nubbles, said nubbles having a diameter of from about 0.0005 to about 0.011 inches; said nubbles being interposed between said perforations a fluid impermeable backsheet affixed to said topsheet; an absorbent means for absorbing liquids, said absorbent means being encased by said topsheet and said backsheet.
Claim 2
Dependent Claim
69 words
A disposable diaper comprising: a fluid permeable topsheet, said topsheet being a thermoplastic film having a plurality of perforations and a plurality of nubbles, said nubbles having a diameter of from about 0.0005 to about 0.011 inches; said nubbles being interposed between said perforations a fluid impermeable backsheet affixed to said topsheet; an absorbent means for absorbing liquids, said absorbent means being encased by said topsheet and said backsheet.
Claim 3
Dependent Claim
70 words
A disposable absorbent structure comprising: a fluid permeable topsheet, said topsheet being a thermoplastic film having a plurality of perforations and a plurality of nubbles, said nubbles having a diameter of from about 0.0005 to about 0.011 inches; said nubbles being interposed between said perforations a fluid impermeable backsheet affixed to said topsheet; an absorbent means for absorbing liquids, said absorbent means being encased by said topsheet and said backsheet.
Claim 4
Dependent Claim
70 words
A disposable absorbent structure comprising: a fluid permeable topsheet, said topsheet being a thermoplastic film having a plurality of perforations and a plurality of nubbles, said nubbles having a diameter of from about 0.0005 to about 0.011 inches; said nubbles being interposed between said perforations a fluid impermeable backsheet affixed to said topsheet; an absorbent means for absorbing liquids, said absorbent means being encased by said topsheet and said backsheet.
Claim 5
Dependent Claim
22 words
The disposable diaper of claim 1 or 2, wherein said nubbles have a diameter of from about 0.001 to about 0.007 inches.
Claim 6
Dependent Claim
22 words
The disposable diaper of claim 1 or 2, wherein said nubbles have a diameter of from about 0.001 to about 0.005 inches.
Claim 7
Dependent Claim
23 words
The disposable diaper of claim 1 or 2, wherein said nubbles have an average spacing of from about 1 to about 6 diameters.
Claim 8
Dependent Claim
23 words
The disposable diaper of claim 1 or 2, wherein said nubbles have an average spacing of from about 2 to about 4 diameters.
Claim 9
Dependent Claim
22 words
The disposable diaper of claim 1 or 2, wherein said nubbles have an average spacing of from 2 to about 3 diameters.
References Cited (Backward Citations)
US3945386A
Cited
US3927673A
Cited
US3929135A
Cited
US3965906A
Cited
US3967623A
Cited
US4055180A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-05-03 | 1985-11-02 | 1986-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-03 | 1989-11-02 | 1990-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-03 | 1993-11-02 | 1994-05-04 | $7700.00 | Window Closed / Lapsed |