US Patent No: 5,188,624

Number of patents in Portfolio can not be more than 2000

Absorbent article with superabsorbent particle containing insert pad and liquid dispersion pad

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ATTORNEY / AGENT: (SPONSORED)
 

Importance

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Abstract

A composite absorbent article is described having a plural layer absorbent core comprising a bonded insert pad and a dispersion pad. The insert pad preferably comprises binder coated fibers to which superabsorbent particles are adhered. By using heat fusible binders, a heat bonded superabsorbent containing insert pad is provided. The dispersion pad also typically comprises fibers and enhances the wicking of liquid throughout the insert pad. In addition, the insert pad may be bound to the dispersion pad at the interface between the pads to provide a stronger composite structure and to also entangle the fibers of the two pads at their interface to improve the wicking of liquid from the dispersion pad into the insert pad. In addition, hydrophilic fibers may be included in the insert pad to enhance the wicking of liquid into the insert pad. The use of surfactant materials in the binder enhances the vertical wicking characteristics of the composite pad. In addition, densification of the dispersion pad, within limits, also enhances the rewet characteristics of the article. In a disposable diaper construction, the insert pad is preferably positioned underneath the facing sheet of the diaper with the dispersion pad being positioned between the insert pad and the backing sheet of the diaper.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
PARAGON TRADE BRANDS, INC.NORCROSS, GA49

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Brunnenkant, Christel Seattle, WA 4 392
Hansen, Michael R Seattle, WA 54 1712
Lancaster, E Peter Gig Harbor, WA 9 343
MehtaHaresh, R Federal Way, WA 1 94
Young, Sr Richard H Renton, WA 38 1514

Cited Art

Patent Info (Count) # Cites Year
 
THE PROCTER & GAMBLE COMPANY (5)
4,610,678 High-density absorbent structures 415 1983
4,673,402 Absorbent articles with dual-layered cores 347 1986
4,888,231 Absorbent core having a dusting layer 228 1987
4,935,022 Thin absorbent articles containing gelling agent 118 1988
4,988,344 Absorbent articles with multiple layer absorbent layers 251 1988
 
MCNEIL-PPC, INC. (3)
4,676,784 Stable disposable absorbent structure 118 1984
4,559,050 Thin, soft, absorbent product 63 1984
4,758,466 Foam-fiber composite and process 55 1987
 
KIMBERLY-CLARK WORLDWIDE, INC. (2)
4,397,644 Sanitary napkin with improved comfort 174 1982
4,806,598 Thermoplastic polymer blends and nonwoven webs prepared therefrom 44 1986
 
WEYERHAEUSER COMPANY (2)
5,057,166 Method of treating discontinuous fibers 66 1989
5,064,689 Method of treating discontinuous fibers 64 1990
 
CHASE MANHATTAN BANK, THE (1)
4,872,870 Fused laminated fabric and panty liner including same 32 1988
 
GEORGIA-PACIFIC CORPORATION (1)
4,492,729 Cohesive fibrous mat for in-transit particulate control 53 1982
 
HANFSPINNEREI STEEN & CO., GMBH (1)
5,002,814 Superabsorbent fibre flocks, methods for their production and application 86 1987
 
HOECHST AKTIENGESELLSCHAFT (1)
4,187,342 Bonded fiber web, which is capable of absorbing water vapor comprising a swellable cellulose ether in fiber form 35 1978
 
KAO SOAP CO., LTD. (1)
4,364,992 Two layer absorbent article with super water-absorbing polymer 91 1981
 
LEVER BROTHERS COMPANY (1)
4,392,908 Process for making absorbent articles 71 1981
 
THE DOW CHEMICAL COMPANY (1)
4,424,247 Absorbent polymer-fiber composites and method for preparing the same 58 1981

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
KIMBERLY-CLARK WORLDWIDE, INC. (31)
5,356,403 Absorbent structure comprising a fibrous matrix having dual z-directional gradient 32 1992
5,350,370 High wicking liquid absorbent composite 77 1993
6,046,377 Absorbent structure comprising superabsorbent, staple fiber, and binder fiber 12 1994
5,490,846 Surge management fibrous nonwoven web for personal care absorbent articles and the like 278 1995
5,486,166 Fibrous nonwoven web surge layer for personal care absorbent articles and the like 263 1995
5,700,254 Liquid distribution layer for absorbent articles 19 1995
5,800,417 Absorbent composition comprising hydrogel-forming polymeric material and fiber bundles 53 1995
5,876,388 Liquid distribution layer for absorbent articles 9 1996
5,601,542 Absorbent composite 103 1996
6,060,638 Matched permeability liner/absorbent structure system for absorbent articles and the like 21 1996
5,879,343 Highly efficient surge material for absorbent articles 34 1996
5,843,063 Multifunctional absorbent material and products made therefrom 41 1996
5,820,973 Heterogeneous surge material for absorbent articles 102 1996
5,994,615 Highly efficient surge material for absorbent article 23 1998
RE39919 Heterogeneous surge material for absorbent articles 0 1999
6,738,735 Method of determining the efficiency of an absorbent article having two absorbent layers that each contain a superabsorbent 3 2000
6,608,237 High-strength, stabilized absorbent article 22 2000
6,533,978 Process and apparatus for forming a stabilized absorbent web 18 2000
6,533,989 Multi-chamber process and apparatus for forming a stabilized absorbent web 15 2000
6,575,952 Absorbent article having a multilayer absorbent core 6 2001
6,846,448 Method and apparatus for making on-line stabilized absorbent materials 15 2001
7,732,039 Absorbent article with stabilized absorbent structure having non-uniform lateral compression stiffness 4 2002
7,090,667 Absorbent article having a multilayer blended core and a method of forming 0 2002
6,808,485 Compressible resilient incontinence insert 13 2002
6,939,492 Method for making fibrous web materials 19 2002
7,297,395 Superabsorbent materials having low, controlled gel-bed friction angles and composites made from the same 0 2003
7,662,745 Stretchable absorbent composites having high permeability 5 2003
7,938,813 Absorbent article having shaped absorbent core formed on a substrate 0 2004
7,772,456 Stretchable absorbent composite with low superaborbent shake-out 19 2004
7,247,215 Method of making absorbent articles having shaped absorbent cores on a substrate 3 2004
7,687,680 Absorbent article having a multilayer blended core and a method of forming 1 2004
 
THE PROCTER & GAMBLE COMPANY (25)
5,599,335 Absorbent members for body fluids having good wet integrity and relatively high concentrations of hydrogel-forming absorbent polymer 133 1994
5,607,414 Catamenial absorbent structures having thermally bonded layers for improved handling of menstrual fluids, and their use in catamenial pads having improved fit and comfort 51 1995
6,042,575 Generally thin, flexible, sanitary napkin with central absorbent hump 14 1996
H001909 Method of making an absorbent composite 1 1997
6,060,637 Shield for absorbent products 13 1997
6,989,005 Absorbent articles having removable components 28 1997
5,817,081 Absorbent articles for fluid management 51 1997
6,171,291 Generally thin, flexible, sanitary napkin with central absorbent hump 13 1997
6,932,800 Absorbent articles comprising a material having a high vertical wicking capacity 14 2001
7,670,324 Disposable absorbent articles with replaceable absorbent core components having regions of permeability and impermeability on same surface 0 2002
7,175,613 Absorptive product having removable absorbers 18 2003
7,601,145 Disposable absorbent articles having multiple absorbent core components including replaceable components 0 2003
7,291,137 Disposable absorbent articles having multiple absorbent core components including replaceable components 7 2003
6,989,006 Disposable absorbent articles having multiple absorbent core components including replaceable components 17 2003
7,727,211 Absorbent article having a replaceable absorbent core component having an insertion pocket 0 2005
7,381,202 Disposable absorbent articles having multiple absorbent core components including replaceable components 3 2005
8,075,542 Disposable absorbent articles having multiple absorbent core components including replaceable components 1 2006
7,887,524 Disposable absorbent articles having multiple absorbent core components including replaceable components 0 2006
8,192,415 Disposable absorbent articles having multiple absorbent core components including replaceable components 0 2006
7,494,483 Disposable absorbent articles having multiple absorbent core components including replaceable components 1 2006
7,824,386 Method for using a disposable absorbent article as a swim pant 0 2006
7,824,387 Method for using a disposable absorbent article as training pant 0 2006
7,766,887 Method for making reusable disposable article 0 2006
8,187,241 Disposable absorbent articles having multiple absorbent core components including replaceable components 0 2006
7,727,218 Disposable absorbent articles having multiple absorbent core components including replaceable components 1 2007
 
NATIONAL INSTITUTE FOR STRATEGIC TECHNOLOGY ACQUISITION AND COMMERCIALIZATION (5)
6,670,522 Wetlaid unitary stratified composite 1 2000
6,525,240 Absorbent article containing unitary stratified composite 9 2000
6,521,812 Absorbent article containing a wetlaid unitary stratified composite 1 2000
6,518,479 Absorbent article containing a foam-formed unitary stratified composite 13 2000
6,673,983 Wetlaid unitary stratified composite containing absorbent material 7 2000
 
SCA HYGIENE PRODUCTS AB (4)
5,634,915 Method for the manufacturing of an absorbent structure and an absorbent article comprising an absorbent structure manufactured according to this method 11 1995
6,194,630 Superabsorbent fibre or nonwoven material, a method for its manufacture, and an absorbent article comprising the superabsorbent fibre or nonwoven material 1 1996
6,100,442 Absorbent article with improved leakage security 18 1998
8,317,768 Absorbent article 0 2007
 
BUCKEYE TECHNOLOGIES INC. (3)
6,403,857 Absorbent structures with integral layer of superabsorbent polymer particles 36 1998
6,241,713 Absorbent structures coated with foamed superabsorbent polymer 14 1998
6,479,415 Absorbent structures having fluid acquisition and distribution layer 9 1999
 
MCNEIL-PPC, INC. (3)
5,817,079 Selective placement of absorbent product materials in sanitary napkins and the like 30 1994
5,582,603 Multiple sliver absorbent product 9 1995
6,573,422 Absorbent article with high absorbency zone 2 1999
 
SCA INCONTINENCE CARE NORTH AMERICA, INC. (3)
5,505,719 Multilayered absorbent structures 32 1994
5,728,083 Multilayered absorbent structures 19 1995
5,569,226 Multilayered absorbent structures 39 1995
 
PROPRIETECT L.P. (2)
5,719,201 Superabsorbent hydrophilic isocyanate-based foam and process for production thereof 13 1995
5,840,780 Foamed polymer and process for production thereof 1 1997
 
TYCO GROUP S.A.R.L. (A LUXEMBOURG CORPORATION), PURCHASER (2)
5,599,334 Absorbent article with substantial volume capacity and retainable shape 19 1993
5,558,655 Absorbent article with dry surface composite construction 78 1994
 
WOODBRIDGE FOAM CORPORATION (2)
5,744,509 Foamed polymer and process for production thereof 4 1996
5,817,703 Rebond foam and process for production thereof 5 1996
 
CHISSO CORPORATION (1)
5,891,119 Absorptive article 19 1996
 
DAIO PAPER CORPORATION (1)
7,632,979 Absorbing article having honeycomb recesses on lower absorbent layer and varying layer densities 1 2003
 
DESCAMPS BELGIUM SPRL (1)
7,543,608 Looped fabric comprising bamboo loops and terry made therefrom 2 2005
 
FINOVA MEZZANINE CAPITAL, INC. (1)
5,879,487 Absorbent material and method for making same 7 1997
 
JOHNSON & JOHNSON INC. (1)
6,465,711 Absorbent article having an improved cover layer 3 2000
 
KAO CORPORATION (1)
6,293,935 Absorbent article with liquid shrinkable elements 18 1999
 
PACTIV LLC (1)
6,491,993 Absorbent pouches 2 1999
 
THE BANK OF NEW YORK MELLON, AS COLLATERAL AGENT (1)
6,821,587 Processes of using at least one absorbent pouch 2 2002
 
TOYO EIZAI KABUSHIKI KAISHA (1)
6,369,291 Disposable underpants and method of continuously producing the same 52 2000
 
UNI-CHARM CORPORATION (1)
5,980,500 Disposable diaper 5 1997
 
WEAREVER HEALTH CARE PRODUCTS, LLC (1)
5,677,028 Absorbent material 20 1996
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (3)
H1909 Method of making an absorbent composite 11 1997
6,174,588 Heat protection element 0 1999
8,292,863 Disposable diaper with pouches 0 2009