WO2010001273A3 - Elastic composite containing a low strength and lightweight nonwoven facing - Google Patents

Elastic composite containing a low strength and lightweight nonwoven facing Download PDF

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Publication number
WO2010001273A3
WO2010001273A3 PCT/IB2009/052024 IB2009052024W WO2010001273A3 WO 2010001273 A3 WO2010001273 A3 WO 2010001273A3 IB 2009052024 W IB2009052024 W IB 2009052024W WO 2010001273 A3 WO2010001273 A3 WO 2010001273A3
Authority
WO
WIPO (PCT)
Prior art keywords
strength
layer
elastic
film
nonwoven facing
Prior art date
Application number
PCT/IB2009/052024
Other languages
French (fr)
Other versions
WO2010001273A2 (en
Inventor
Howard M. Welch
James Austin
Lisa Sanabria
Jose A. Siqueira
Wing-Chak Ng
Bryan D. Haynes
Oomman P. Thomas
Iris V. Schumacher
Christopher Laslie
Stephen C. Meyer
Original Assignee
Kimberly-Clark Worldwide, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kimberly-Clark Worldwide, Inc. filed Critical Kimberly-Clark Worldwide, Inc.
Priority to MX2010013921A priority Critical patent/MX2010013921A/en
Priority to AU2009265214A priority patent/AU2009265214B2/en
Priority to BRPI0910125A priority patent/BRPI0910125B8/en
Priority to CN200980125530.6A priority patent/CN102076303B/en
Priority to EP09772933.9A priority patent/EP2299956B1/en
Publication of WO2010001273A2 publication Critical patent/WO2010001273A2/en
Publication of WO2010001273A3 publication Critical patent/WO2010001273A3/en
Priority to ZA2011/00022A priority patent/ZA201100022B/en

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Classifications

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    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/681—Spun-bonded nonwoven fabric

Abstract

An elastic composite formed from a lightweight nonwoven facing that has a low degree of strength in the cross-machine direction ("CD") is provided. Through selective control over certain parameters of the materials employed in the composite and the formation process, the present inventors have discovered that such low strength and lightweight facings may be readily laminated to an elastic film without significantly damaging their integrity. For example, in one embodiment, the elastic film may possess a multi-layered construction that includes an elastomeric elastic layer positioned adjacent to a strength-enhancing thermoplastic layer. The polymer content and thickness of the thermoplastic layer are generally selected to impart additional strength and integrity to the film. Likewise, the polymer content of the elastic layer may also be selected so that the film possesses a sufficient tack for adhering to the facing. In certain cases, it may be desirable to position the layer between two elastic layers so that the strength-enhancing layer does not substantially contact the nonwoven facing. In this manner, the strength-enhancing layer may avoid substantial damage during the lamination process.
PCT/IB2009/052024 2008-06-30 2009-05-14 Elastic composite containing a low strength and lightweight nonwoven facing WO2010001273A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
MX2010013921A MX2010013921A (en) 2008-06-30 2009-05-14 Elastic composite containing a low strength and lightweight nonwoven facing.
AU2009265214A AU2009265214B2 (en) 2008-06-30 2009-05-14 Elastic composite containing a low strength and lightweight nonwoven facing
BRPI0910125A BRPI0910125B8 (en) 2008-06-30 2009-05-14 elastic composite, absorbent article, and method of forming a composite
CN200980125530.6A CN102076303B (en) 2008-06-30 2009-05-14 Comprise the elastic composite of low-intensity and lightweight nonwoven facings
EP09772933.9A EP2299956B1 (en) 2008-06-30 2009-05-14 Elastic composite containing a low strength and lightweight nonwoven facing
ZA2011/00022A ZA201100022B (en) 2008-06-30 2011-01-03 Elastic composite containing a low strength and lightweight nonwoven facing

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US12/165,010 US8603281B2 (en) 2008-06-30 2008-06-30 Elastic composite containing a low strength and lightweight nonwoven facing
US12/165,010 2008-06-30

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WO2010001273A2 WO2010001273A2 (en) 2010-01-07
WO2010001273A3 true WO2010001273A3 (en) 2010-03-18

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EP (1) EP2299956B1 (en)
KR (1) KR101620648B1 (en)
CN (1) CN102076303B (en)
AR (1) AR072409A1 (en)
AU (1) AU2009265214B2 (en)
BR (1) BRPI0910125B8 (en)
CO (1) CO6321212A2 (en)
MX (1) MX2010013921A (en)
WO (1) WO2010001273A2 (en)
ZA (1) ZA201100022B (en)

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US20090325448A1 (en) 2009-12-31
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US8603281B2 (en) 2013-12-10
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