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US5531729A Expired / Lapsed US ⏱️ 0.0 years remaining

Elastic net-like substrate having a layer of fibers pre-bonded thereto for use in an absorbent article

Assignee: Procter and Gamble Co
•
Filing: 1993-03-11
•
Granted: 1996-07-02
•
Expires: 2013-03-11
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Abstract

Abstract PCT No. PCT/US93/02151 Sec. 371 Date Sep. 22, 1994 Sec. 102(e) Date Sep. 22, 1994 PCT Filed Mar. 11, 1993 PCT Pub. No. WO93/18729 PCT Pub. Date Sep. 30, 1993.In an absorbent article, such as a diaper or incontinence briefs, an elastic member comprising a net-like elastic substrate to which fibers are pre-bonded provides for a breathable elastic for use as a side- a waist- or leg elastic. The fibers that are bonded to the net-like substrate, for instance by hydro-entangling, ensure a soft and comfortable contact with the wearer's skin. In the side panels of the absorbent article, the elastic members have a large freedom of stretch without buckling taking place, thus reducing chances of leakage. When the elastic member is located between the topsheet and the backsheet, a strong connection of topsheet to backsheet is established using a relatively small amount of adhesive. When the topsheet is physically deformed to impart stretchability, the fibers of the elastic member form a soft and resilient layer and prevent direct contact of the elastic member and the user's skin in case of thinning of the topsheet.

Inventors

  • 👤 Peter Coles
  • 👤 Attila Tamer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 22:41
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/45; A61F13/49; A61F13/49007; A61F13/49009; A61F13/49011; A61F13/49014; A61F13/49017; A61F13/4902; B; B32; B32B; B32B3/00; B32B3/26; B32B3/266; A61F13/491; A61F13/51; A61F13/511; A61F2013/00089; A61F2013/00217; A61F2013/00221; A61F2013/00225; A61F13/514; A61F13/51401; A61F2013/51409; A61F2013/51429; A61F13/53; A61F13/534; A61F2013/53454; A61F2013/53463; A61F13/539; A61F2013/53975

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 131 words
Absorbent article comprising: a topsheet, a liquid impervious backsheet joined to the topsheet, an absorbent core disposed between the topsheet and the backsheet, a periphery of the absorbent article comprising two longitudinal sides and two lateral sides extending transversely to the longitudinal sides, and an elastic member connected to a body-facing side of the backsheet, the elastic member comprising an elastomeric net having a first side and a second side opposite said first side, a first layer of fibers joined to said first side of said elastomeric net, and a second layer of fibers joined to said second side of said elastomeric net, said first layer of fibers being oriented in a first direction and said second layer of fibers being oriented in a direction substantially perpendicular to said first direction.
Claim 2
Dependent Claim 131 words
Absorbent article comprising: a topsheet, a liquid impervious backsheet joined to the topsheet, an absorbent core disposed between the topsheet and the backsheet, a periphery of the absorbent article comprising two longitudinal sides and two lateral sides extending transversely to the longitudinal sides, and an elastic member connected to a body-facing side of the backsheet, the elastic member comprising an elastomeric net having a first side and a second side opposite said first side, a first layer of fibers joined to said first side of said elastomeric net, and a second layer of fibers joined to said second side of said elastomeric net, said first layer of fibers being oriented in a first direction and said second layer of fibers being oriented in a direction substantially perpendicular to said first direction.
Claim 3
Dependent Claim 18 words
Absorbent article according to claim 1 wherein the elastic member is positioned between the topsheet and the backsheet.
Claim 4
Dependent Claim 20 words
Absorbent article according to claim 1 wherein the first layer of fibers is entangled with the second layer of fibers.
Claim 5
Dependent Claim 21 words
Absorbent article according to claim 1 wherein the absorbent article comprises two side panels said side panel comprising said elastic member.
Claim 6
Dependent Claim 22 words
Absorbent article according to claim 1 wherein the backsheet is mechanically treated in an area that is coextensive with the elastic member.
Claim 7
Dependent Claim 27 words
Absorbent article according to claim 1 wherein the elastic member is attached to the backsheet in a pre-stretched state, the elastic member upon relaxation gathering the backsheet.

References Cited (Backward Citations)

CA803714A Cited
US4450026A Cited
US4407284A Cited
US4606964A Cited
US4968313A Cited
US4977011A Cited
US5352216A Cited
US5334446A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1999-07-02 2000-01-01 2000-07-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2003-07-02 2004-01-01 2004-07-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2007-07-02 2008-01-01 2008-07-02 $7700.00 Window Closed / Lapsed

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