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US6394989: Absorbent article having deformation inducing means

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Filing Information

Inventor(s) Satoshi Mizutani ·
Assignee(s) Uni-Charm Corporation ·
Attorney/Agent(s) Baker & Daniels ·
Primary Examiner John G. Weiss ·
Assistant Examiner Michael Bogart ·
Application Number US9161022
Filing date 09/25/1998
Issue date 05/28/2002
Predicted expiration date 09/25/2018
U.S. Classifications 604/385.01  · 604/385.26  · 604/385.27  · 604/383  · 604/385.201  ·
International Classifications --
Kind CodeB2
International Classifications 604347 · 604354 · 6043851 · 604386 · 6043852 · 604387 · 604378 · 604109 · 604 494 · 60438501 · 604385201 · 60438527 · 60438526 · 604383 ·
Foreign Priority JP9264654 - 09/29/1997 · JP9264655 - 09/29/1997 ·
14 Claims, 7 Drawings


Abstract

An absorbent article such as sanitary napkin having an absorbent laminate is provided on a skin-noncontactable side of the laminate with deformation inducing means. The deformation inducing means include a hydrophobic panel member and an elastically stretchable member adapted to pull the panel member toward its middle under contractile force of the elastically stretchable member and thereby to convexly deform the panel member toward a skin-contactable side of the laminate. Convex deformation of the panel member by the deformation inducing means allows the laminate to be convexly deformed.

Independent Claims | See all claims (14)

  1. 1. An absorbent article having a longitudinal axis, a skin-contactable side and a skin-noncontactable side, said absorbent article comprises: an absorbent laminate and deformation inducing means provided adjacent said skin-noncontactable side so as to convexly deform said absorbent laminate toward said skin-contactable side; said absorbent laminate including a convexly deformable zone which lies on both sides of said longitudinal axis so as to be contoured symmetrically with respect to said longitudinal axis, and deformation assisting means formed on both sides of said convexly deformable zone; said deformation inducing means including a panel member and an elastically stretchable member which has transverse ends thereof secured in a vicinity of said deformation assisting means to said panel member so as to convexly deform said panel member about said longitudinal axis toward said skin-contactable side as said elastically stretchable member elastically contracts, respective regions of said absorbent laminate and said deformation inducing means which have been convexly deformed are deformable to substantially flat states against a contractile force of said elastically stretchable member when a contacting pressure directed from said skin-contactable side toward said skin-noncontactable side is exerted on said article.

References Cited

U.S. Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
US4673403* Kimberly-Clark Corporation Lassen et al. Jun 1987
US4804380* Kimberly-Clark Corporation Lassen et al. Feb 1989
US4822350* Kao Corporation Ito et al. Apr 1989
US4846824* Kimberly-Clark Corporation Lassen et al. Jul 1989
US4897084* Molnlycke AB Ternstrom et al. Jan 1990
US4911701* McNeil-PPC, Inc. Mavinkurve Mar 1990
US5080658* Uni-Charm Corporation Igaue et al. Jan 1992
US5129893* Molnlycke AB Thoren Jul 1992
US5197959* The Procter & Gamble Company Buell Mar 1993
US5295987* Molnlycke AB Widlund et al. Mar 1994
US5354400* The Procter & Gamble Company Lavash et al. Oct 1994
US5545156* Kimberly-Clark Corporation DiPalma et al. Aug 1996
US5558656* The Procter & Gamble Company Bergman Sep 1996
US5569231* The Procter & Gamble Company Emenaker et al. Oct 1996
US5591150* The Procter and Gamble Company Olsen et al. Jan 1997
US5624421* McNeill-PPC, Inc. Dabi et al. Apr 1997
US5688259* The Procter & Gamble Company Osborn, III et al. Nov 1997
US5722967* The Procter & Gamble Company Coles Mar 1998
US5827258* The Procter & Gamble Company McFall et al. Oct 1998
US5849003* The Procter & Gamble Company Olsen et al. Dec 1998
US5957909* The Procter & Gamble Company Hammons et al. Sep 1999
US6210385* Uni-Charm Corporation Mizutani Apr 2001

Foreign Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
EP0214636*KIMBERLY-CLARK CORPORATIONMar 1987
EP0360285McNEIL-PPC, INC.Mar 1990
EP0572033KIMBERLY-CLARK WORLDWIDE, INC.Dec 1993
GB2296437MOELNLYCKE ABJul 1996
JPA27958Jan 1990
JPA211138Jan 1990
JPU562228Aug 1993
JPB2640888Jun 1994
JPA9507033Jul 1997
WO199301783*Feb 1993
WO199500095*Jan 1995
WO199507674Mar 1995
WO199517148Jun 1995
WO199707764Mar 1997
* cited by examiner