Patent EP0156649A2 successfully refreshed from Google Patents.
EP0156649A2
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Sorbent sheet material
Assignee: 3M Co
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Filing: 1985-03-28
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Granted: —
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Expires: 2005-03-28
Abstract
Abstract Sorbent sheet products are prepared comprising a coherent fibrous web that includes entangled blown fibers and liquid transport fibers intermingled with the blown fibers and an array of solid high sorbency liquid-sorbent polymeric particles uniformly dispersed and physically held within the web. The particles swell upon sorption of liquid, and the transport fibers cause increased and more rapid sorption of liquid by conducting the liquid from external portions of the web to internal portions of the web.
Inventors
- 👤 Thomas I. C/O Minnesota Mining And Insley
- 👤 Daniel E. C/O Minnesota Mining And Meyer
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 13:03
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/53; A61F13/15577; A61F13/15617; A61F13/15642; D; D04; D04H; D04H1/00; D04H1/40; D04H1/54; D04H1/56; A61F2013/15821; A61F2013/530131; A61F2013/530138; A61F2013/530145; A61F2013/530182; A61F2013/530481; A61F2013/530489; A61F2013/530496
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
80 words
A sorbent sheet product comprising a coherent fibrous web characterized in that said web includes entangled blown fibers and liquid transport fibers intermingled with the blown fibers and an array of solid high sorbency liquid-sorbent polymeric particles uniformly dispersed and physically held within the web, the particles swelling upon sorption of liquid, and the transport fibers causing increased and more rapid sorption of liquid by conducting the liquid from external portions of the web to internal portions of the web.
Claim 2
Dependent Claim
80 words
A sorbent sheet product comprising a coherent fibrous web characterized in that said web includes entangled blown fibers and liquid transport fibers intermingled with the blown fibers and an array of solid high sorbency liquid-sorbent polymeric particles uniformly dispersed and physically held within the web, the particles swelling upon sorption of liquid, and the transport fibers causing increased and more rapid sorption of liquid by conducting the liquid from external portions of the web to internal portions of the web.
Claim 3
Dependent Claim
30 words
A sorbent sheet product of claim 1 wherein the transport fibers are present in an amount of about 10 to 100 g/m 2 for 100 g/m 2 of blown fibers.
Claim 4
Dependent Claim
20 words
A sorbent sheet product of claim 1 wherein the transport fibers have a water retention value of at least 20%.
Claim 5
Dependent Claim
13 words
A sorbent sheet product of claim 1 wherein the transport fibers are rayon.
Claim 6
Dependent Claim
29 words
A sorbent sheet product of claim 1 wherein the sorbent particles are present in an amount of at least 20 g/m 2 for 100 g/m 2 of blown fibers.
Claim 7
Dependent Claim
22 words
A sorbent sheet product of claim 1 wherein the melt blown fibers comprise microfibers averaging less than about 10 micrometers in diameter.
Claim 8
Dependent Claim
29 words
A sorbent sheet product of claim 1 further comprising surfactant which assists wetting of the web by a liquid to be sorbed are also dispersed within- the web fibers.
Claim 9
Dependent Claim
10 words
A diaper containing the sorbent sheet product of claim 1.
Claim 10
Dependent Claim
11 words
An incontinent device containing the sorbent sheet material of claim 1.
Claim 11
Dependent Claim
17 words
A filter for separation of water from organic liquids containing the sorbent sheet material of claim 1.
References Cited (Backward Citations)
No citation records indexed.
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