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US5624729: Increased pile density composite elastic material

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Filing Information

Inventor(s) Bernard Cohen · Robert J. Roeder · Jay S. Shultz · Raju Venkatapathy ·
Assignee(s) Kimberly-Clark Corporation ·
Attorney/Agent(s) Karl V. Sidor ·
Primary Examiner Christopher Raimund ·
Application Number US8384064
Filing date 02/06/1995
Issue date 04/29/1997
Predicted expiration date 09/29/2009
U.S. Classifications 428/90  · 428/95  ·
International Classifications B05D 114  ·
Kind CodeA
International Classifications 42890;95;96;97 ·
Related U.S. Application DataThis application is a continuation application of application Ser. No. 07/852,447 filed on Mar. 16, 1992, now abandoned which is a continuation-in-part application of application Ser. No. 07/414,482 filed on Sep. 29, 1989, abandoned.
29 Claims, No Drawings


Abstract

Disclosed is a lanate composite elastic material made by a method including the steps of applying a tensioning force to elongate at least one pressure sensitive elastomer adhesive sheet; inserting substantially individualized fibrous materials into the elastic sheet by mechanical needling the elastomer sheet while it is maintained in an elongated condition; and releasing the tensioning force so the attached fibrous materials are positioned closer together by the recovery of the elastic sheet. The resulting lanate composite elastic material has stretch and recovery properties, bulk, and desirable insulation properties. One or more layers of the lanate composite material may be combined with other layers of material to create a multi-layer structure. Also disclosed is a method of making in increased pile density composite elastic material including the step inserting substantially individualized fibrous materials into an elongated pressure sensitive elastomer adhesive sheet by stitchbonding, malipole stitchbonding, or tufting or adhering substantially individualized fibrous materials to the elongated elastomer sheet by flocking techniques. The density of attached fibrous materials in the resulting increased pile density composite elastic material is greater than could be achieved by conventional fiber insertion or adherence techniques while still maintaining desirable elastic properties and bulk.

Independent Claims | See all claims (29)

  1. 1. A lanate composite elastic material comprising:at least one pressure sensitive elastomer adhesive sheet; andnonelastic fibrous materials inserted into said pressure sensitive elastomer adhesive sheet by mechanical needling while the pressure sensitive elastomer adhesive sheet is subject to a stretching force so that, upon recovery of the pressure sensitive elastomer adhesive sheet, the fibrous materials are positioned closer together than before recovery of said sheet, thereby providing a lanate appearance.
  2. 19. An increased pile density composite elastic material comprising:at least one pressure sensitive elastomer adhesive sheet; andindividualized nonelastic fibrous materials inserted into said elastic sheet by stitchbonding, malipole stitchbonding or tufting techniques while the pressure sensitive elastomer adhesive sheet is subject to a stretching force so that, upon recovery of the pressure sensitive elastomer adhesive sheet, the fibrous materials are positioned closer together than before recovery of said sheet.
  3. 25. An increased pile density composite elastic material comprising:at least one pressure sensitive elastomer adhesive nonwoven web of meltblown fibers; andnonelastic fibrous materials selected from the group consisting of fibers and fiber bundles, said fibrous materials projecting from the pressure sensitive elastomer adhesive nonwoven web of elastic meltblown fibers to form a pile, andwherein the increased pile density composite elastic material is capable of being stretched to a length that is at least 200 percent of its relaxed length.
  4. 26. An increased pile density composite elastic material comprising:at least one pressure sensitive elastomer adhesive nonwoven web of elastomer meltblown fibers;fibrous materials adhered onto at least one surface of the pressure sensitive elastomer adhesive nonwoven web of elastomeric meltblown fibers by flocking,wherein the fibrous materials are selected from the group consisting of fibers and fiber bundles and are adhered to the pressure sensitive elastomer adhesive nonwoven web of elastomeric meltblown fibers while the pressure sensitive elastomer adhesive nonwoven web of elastomeric meltblown fibers is maintained in an elongated condition so that, upon recovery of the pressure sensitive elastomer adhesive nonwoven web of elastomeric meltblown fibers, the adhered fibrous materials are positioned closer together by the recovery of the pressure sensitive elastomer adhesive nonwoven web of elastomeric meltblown fibers.

References Cited

U.S. Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
US2951005 AMERICAN VISCOSE CORP Hervey Aug 1960
US4741949 Kimberly-Clark Corporation Morman et al. May 1988

Referenced By

Document NumberAssigneeInventorsIssue/Pub Date
EP1070492 McNEIL-PPC, INC. Vincent P. Lasko May 2003
US6289524 Kimberly-Clark Worldwide, Inc. Alan Edward Wright et al. Sep 2001
US6192556 Japan Vilene Company, Ltd. Keiko Kikko et al. Feb 2001
US6001460 Kimberly-Clark Worldwide, Inc. Michael Tod Morman et al. Dec 1999
US5853881 Kimberly-Clark Worldwide, Inc. Paul Windsor Estey et al. Dec 1998
US6275046 Lubbock Electric Co. Steve Moffett et al. Aug 2001
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US6982231 Kimberly-Clark Worldwide, Inc. Duane Girard Uitenbroek et al. Jan 2006
US7318534 S.C. Johnson Home Storage, Inc. Robert R. Turvey et al. Jan 2008
US6969378 Kimberly-Clark Worldwide, Inc. John Philip Vukos et al. Nov 2005
US7910195 The Procter & Gamble Company John Lee Hammons et al. Mar 2011
US7670665 The Procter & Gamble Company Jody Lynn Hoying et al. Mar 2010
US7680638 Yonsei University Eunae Kim et al. Mar 2010
US7785690 The Procter & Gamble Company Robert Haines Turner et al. Aug 2010
US8007615 Covermate, Inc Claus E. Sadlier Aug 2011
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