EP0174775B1
Expired / Lapsed
EP
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Sorbent sheet product
Assignee: 3M Co
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Filing: 1985-08-29
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Granted: 1989-07-26
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Expires: 2005-08-29
Abstract
No abstract record available.
Inventors
- 👤 Thomas I. C/O Minnesota Mining And Insley
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 18:49
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/53; A61F13/15577; A61F13/15617; A61F13/15642; A61L; A61L15/00; A61L15/16; A61L15/42; A61L15/48; A61F2013/15821; A61F2013/530131; A61F2013/530182; A61F2013/530481; A61F2013/530489; A61F2013/530496; Y; Y10; Y10S; Y10S428/00; Y10S428/903; Y10S428/913; Y10T; Y10T428/00; Y10T428/249921; Y10T428/29; Y10T428/2913; Y10T428/2922; Y10T442/00; Y10T442/60; Y10T442/608; Y10T442/614; Y10T442/615; Y10T442/68
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
42 words
A sorbent sheet product comprising a coherent fibrous web that includes entangled blown polymeric fibers and high sorbency, liquid-sorbent fibers intermingled with the blown polymeric fibers, said high sorbency fibers having a synthetic urine retention value of at least about 5 ml/g.
Claim 2
Dependent Claim
42 words
A sorbent sheet product comprising a coherent fibrous web that includes entangled blown polymeric fibers and high sorbency, liquid-sorbent fibers intermingled with the blown polymeric fibers, said high sorbency fibers having a synthetic urine retention value of at least about 5 ml/g.
Claim 3
Dependent Claim
33 words
The sorbent sheet product of claim 1 wherein the high sorbency, liquid-sorbent fibers are present in an amount of about 20 to 200 g/m 2 for 100 g/m 2 of blown polymeric fibers.
Claim 4
Dependent Claim
23 words
The sorbent sheet product of claim 1 wherein the blown polymeric fibers are microfibers having an average diameter less than about 10 micrometers.
Claim 5
Dependent Claim
21 words
The sorbent sheet product of claim 1 wherein said blown fibers are selected from polypropylene, polyethylene, polyethylene terephthalate, and polyamide fibers.
Claim 6
Dependent Claim
33 words
The sorbent sheet product of claim 1 wherein the high sorbency, liquid sorbent fibers are acrylonitrile fibers having at least a portion of the surface modified to form a hydrophilic crosslinked polymer thereon.
Claim 7
Dependent Claim
10 words
The sorbent sheet product of claim 1 further comprising surfactant.
Claim 8
Dependent Claim
29 words
The sorbent sheet product of claim 6 wherein the surfactant is present in an amount of 0.1 to 1.0 g/m 2 for 100 g/m 2 of blown polymeric fibers.
Claim 9
Dependent Claim
22 words
The sorbent sheet product of claim 1 further comprising transport fibers having a synthetic urine retention value of at least 1.0 ml/g.
Claim 10
Dependent Claim
19 words
The sorbent sheet product of claim 8 wherein said transport fibers are selected from rayon, cotton, wool, and silk.
Claim 11
Dependent Claim
13 words
The sorbent sheet product of claim 8 wherein said transport fibers are rayon.
Claim 12
Dependent Claim
30 words
The sorbent sheet product of claim 8 wherein said transport fibers are present in an amount of about 10 to 100 g/m 2 for 100 g/m 2 blown polymeric fibers.
Claim 13
Dependent Claim
13 words
The sorbent sheet product of claim 8 wherein said transport fibers are crimped.
Claim 14
Dependent Claim
11 words
A disposable diaper containing the sorbent sheet product of claim 1.
Claim 15
Dependent Claim
12 words
A disposable incontinent device containing the sorbent sheet product of claim 1.
Claim 16
Dependent Claim
11 words
A sanitary napkin containing the sorbent sheet product of claim 1.
Claim 17
Dependent Claim
74 words
A sorbent sheet product comprising a coherent fibrous web that includes entangled blown polymeric fibers and high sorbency, liquid-sorbent, staple fibers and transport fibers intermingled with the blown polymeric fibers, said high sorbency fibers having a synthetic urine retention value of at least about 5 ml/g, said transport fibers having a synthetic urine retention value of at least 1 ml/g, and said blown polymeric fibers having an average diameter less than about 10 micrometers.
Claim 18
Dependent Claim
74 words
A sorbent sheet product comprising a coherent fibrous web that includes entangled blown polymeric fibers and high sorbency, liquid-sorbent, staple fibers and transport fibers intermingled with the blown polymeric fibers, said high sorbency fibers having a synthetic urine retention value of at least about 5 ml/g, said transport fibers having a synthetic urine retention value of at least 1 ml/g, and said blown polymeric fibers having an average diameter less than about 10 micrometers.
Claim 19
Dependent Claim
33 words
The sorbent sheet product of claim 16 wherein the high sorbency, liquid-sorbent staple fibers are acrylonitrile fibers having at least a portion of the surface modified to form a hydrophilic crosslinked polymer thereon.
Claim 20
Dependent Claim
10 words
The sorbent sheet product of claim 16 further comprising surfactant.
Claim 21
Dependent Claim
15 words
The sorbent sheet product of claim 16 or 17 wherein the transport fibers are rayon.
References Cited (Backward Citations)
No citation records indexed.
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