WO2010001272A3 - Elastic composite formed from multiple laminate structures - Google Patents

Elastic composite formed from multiple laminate structures Download PDF

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Publication number
WO2010001272A3
WO2010001272A3 PCT/IB2009/052023 IB2009052023W WO2010001272A3 WO 2010001272 A3 WO2010001272 A3 WO 2010001272A3 IB 2009052023 W IB2009052023 W IB 2009052023W WO 2010001272 A3 WO2010001272 A3 WO 2010001272A3
Authority
WO
WIPO (PCT)
Prior art keywords
film
elastic
facing
laminate
composite
Prior art date
Application number
PCT/IB2009/052023
Other languages
French (fr)
Other versions
WO2010001272A2 (en
Inventor
James Austin
Oomman P. Thomas
Stephen C. Meyer
Howard M. Welch
Jose A. Siqueira
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 CN200980125539.7A priority Critical patent/CN102076304B/en
Priority to MX2010013820A priority patent/MX2010013820A/en
Priority to AU2009265213A priority patent/AU2009265213B2/en
Priority to EP20090772932 priority patent/EP2296599B1/en
Priority to BRPI0910136A priority patent/BRPI0910136B8/en
Publication of WO2010001272A2 publication Critical patent/WO2010001272A2/en
Publication of WO2010001272A3 publication Critical patent/WO2010001272A3/en
Priority to ZA2011/00021A priority patent/ZA201100021B/en

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    • Y10T442/681—Spun-bonded nonwoven fabric

Abstract

An elastic composite formed from a laminate that contains an elastic film and a lightweight nonwoven facing having a low strength in the cross-machine direction ("CD") is provided. Due to the low strength of the facing, it is desirable that the elastic film have a sufficient thickness and weight to enhance the strength of the resulting composite. Unfortunately, the ability to join an elastic film to such a lightweight nonwoven facing becomes increasingly difficult as the thickness of the film increases. In this regard, the present inventors have discovered that a second laminate may be employed in the elastic composite that is formed from a thermoplastic film and nonwoven facing to impart increased strength to the composite. The film and facing of the second laminate may be formed from the same or different materials than the film and facing of the first laminate. Regardless, the laminates are positioned so that the elastic and thermoplastic films are in a face-to-face relationship. Through selective control over the polymer content and thickness, the present inventors have discovered that the elastic and thermoplastic films may be readily joined together under light pressure, even at ambient temperature conditions. This avoids the application of a substantial amount of heat used in conventional calender bonding processes, which can otherwise damage the film, and also minimize the need for costly adhesives.
PCT/IB2009/052023 2008-06-30 2009-05-14 Elastic composite formed from multiple laminate structures WO2010001272A2 (en)

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CN200980125539.7A CN102076304B (en) 2008-06-30 2009-05-14 The elastic composite formed by multiple laminar structures
MX2010013820A MX2010013820A (en) 2008-06-30 2009-05-14 Elastic composite formed from multiple laminate structures.
AU2009265213A AU2009265213B2 (en) 2008-06-30 2009-05-14 Elastic composite formed from multiple laminate structures
EP20090772932 EP2296599B1 (en) 2008-06-30 2009-05-14 Elastic composite formed from multiple laminate structures
BRPI0910136A BRPI0910136B8 (en) 2008-06-30 2009-05-14 elastic composite, and absorbent article
ZA2011/00021A ZA201100021B (en) 2008-06-30 2011-01-03 Elastic composite formed from multiple laminate structures

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US12/164,990 US8679992B2 (en) 2008-06-30 2008-06-30 Elastic composite formed from multiple laminate structures
US12/164,990 2008-06-30

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WO2010001272A2 WO2010001272A2 (en) 2010-01-07
WO2010001272A3 true WO2010001272A3 (en) 2010-03-25

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EP (1) EP2296599B1 (en)
KR (1) KR101615401B1 (en)
CN (1) CN102076304B (en)
AR (1) AR072408A1 (en)
AU (1) AU2009265213B2 (en)
BR (1) BRPI0910136B8 (en)
CO (1) CO6321211A2 (en)
MX (1) MX2010013820A (en)
WO (1) WO2010001272A2 (en)
ZA (1) ZA201100021B (en)

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