EP0476992A1
Expired / Lapsed
EP
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Mechanical fastener and diaper construction
Assignee: 3M Co
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Filing: 1991-09-18
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Granted: —
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Expires: 2011-09-18
Abstract
Abstract A diaper (10) construction is provided having two points of attachment, an outer fastening means (28), and an inner shear resistant fastener (Fig. 3), which fastener is formed of a backing (30) having an array of upstanding stemlike projections (34) distributed across at least one face. The stemlike projections (34) are blunt or substantially pointed (35) to allow easy penetration into a foraminous diaper top sheet (12).
Inventors
- 👤 William L. C/O Minnesota Mining And Melbye
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 08:55
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/56; A61F13/58; A61F13/581; A61F13/5622; A61F13/5633
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
89 words
A diaper characterized by a liquid-permeable foraminous topsheet, an absorbant batt and a liquid-impermeable backsheet, having at least two corners, at least one outer fastening means for securing two of said corners, and an inner fastening means comprising; a backing having an array of upstanding stems distributed across at least one face, said stems having a tip adapted to penetrate a foraminous substrate wherein said inner fastening means is located on the backsheet such as to allow penetration of said foraminous substrate when said outer fastening means is closed.
Claim 2
Dependent Claim
19 words
The diaper of claim 1 characterized in that said stems have an inward taper away from said backing face.
Claim 3
Dependent Claim
14 words
The diaper of claim 2 characterized in that said stems are conical or pyramidal.
Claim 4
Dependent Claim
18 words
The diaper of claim 1 characterized in that said stems have no taper away from said backing face.
Claim 5
Dependent Claim
29 words
The diaper of any of claims 1 to 4 characterized in that said stems are 130 to 510 µm from said tip to the plane of the backing face.
Claim 6
Dependent Claim
52 words
A mechanical fastener characterized by a backing having an array of upstanding stems distributed across at least one face, said stems having a tip adapted to penetrate a foraminous substrate wherein said stems extend 130 to 510 µm from the face of the backing with at least 3.9 stems per square centimeter.
Claim 7
Dependent Claim
20 words
The mechanical fastener of claim 6 characterized in that said stems have an inward taper away from said backing face.
Claim 8
Dependent Claim
16 words
The mechanical fastener of claim 7 characterized in that said stems are substantially conical or pyramidal.
Claim 9
Dependent Claim
20 words
The mechanical fastener of claim 6 characterized in that said stems have substantially no taper away from said backing face.
Claim 10
Dependent Claim
22 words
The mechanical fastener of any of claims 6-9 characterized in that said stems are present at less than 155 per square centimeter.
Claim 11
Dependent Claim
25 words
The mechanical fastener of any of claims 6-10 further characterized by a pressure-sensitive adhesive layer on a face free of said array of upstanding stems.
Claim 12
Dependent Claim
41 words
The mechanical fastener of any of claims 6-11 characterized in that it is of a size that will give a shear value of at least about 500 grams when placed against a foraminous substrate at a pressure of approximately 17 gm/cm².
Claim 13
Dependent Claim
29 words
The mechanical fastener of any of claims 6-12 further characterized by a separate pressure-sensitive adhesive fastening region, adjacent to a stem containing region, on the backing face having stems.
References Cited (Backward Citations)
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