US Patent No: 4,713,068

Number of patents in Portfolio can not be more than 2000

Breathable clothlike barrier having controlled structure defensive composite

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Abstract

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A breathable clothlike barrier which includes a defensive composite having at least two layers: A. a first layer which is a clothlike porous substrate having a first side and a second side, in which: the first layer has a nominal basis weight of at least about 10 g/m.sup.2 ; the fibers comprising the first layer have an average fiber diameter in the range of from about 0.01 to about 10 microns; and each of substantially all of the pores at the surface of the first side of the first layer has a cross-sectional area of from about 6.times.10.sup.-16 m.sup.2 to about 2.times.10.sup.-9 m.sup.2 ; and B. a second layer joined to the first side of the first layer, which second layer is a continuous film of a poly(vinyl alcohol), in which: the film is not microporous in that it is substantially free of voids which connect the two surfaces of the film; and the film has an average thickness of (a) from about 3 to about 25 microns when the basis weight of the first layer is at least about 20 g/m.sup.2 or (b) from about 8 to about 25 microns when the basis weight of the first layer is from about 10 to less than about 20 g/m.sup.2 ; in which the first layer side of the second layer is intimately comingled with at least some of the fibers at the surface of the first side of the first layer, and the defensive composite has a water vapor transmission rate at 37 degrees C. and about 50 percent relative humidity of from about 100 to about 5,000 g/m.sup.2 /24 hours and is impermeable to 0.9 percent by weight saline solution at about 21 degrees C. for a period of at least about one hour at a hydrostatic head of at least about 11.4 cm.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
KIMBERLY-CLARK WORLDWIDE, INC.NEENAH, WI5527

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Wang, Kenneth Y Alpharetta, GA 32 923
Yeo, Richard S Dunwoody, GA 15 870

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Akzona Incorporated (2)
4,247,498 Methods for making microporous products 226 1978
4,519,909 Microporous products 111 1979
 
Minnesota Mining and Manufacturing Company (2)
4,539,256 Microporous sheet material, method of making and articles made therewith 273 1984
4,613,544 Waterproof, moisture-vapor permeable sheet material and method of making the same 94 1984
 
BIAX FIBERFILM (1)
4,289,832 Chemically-impregnated microporous films 57 1978
 
CELGARD LLC (1)
4,257,997 Solvent stretch process for preparing a microporous film 39 1979
 
CHASE MANHATTAN BANK, THE (1)
4,308,303 Flocked, foam-coated, fibrous-reinforced, water vapor permeable, bacterial barrier 31 1980
 
H.B. FULLER LICENSING & FINANCING, INC. (1)
4,608,111 Bonding method employing an adhesive which contains in an aqueous base an effective amount of a polyvinyl alcohol and a lignin sulfonate 12 1985
 
Haworth; John Brian (1)
4,226,906 Microporous coated fabrics from clustered microspheres 18 1978
 
Hoechst Aktiengesellschaft (1)
4,197,371 Water vapor absorbing and transmitting sheet material of rubber containing a swellable cross-linked cellulose ether or starch ether and a process for the manufacture thereof 22 1978
 
HOECHST CELANESE CORPORATION (1)
4,304,812 Backcoating of open weave fabric 23 1980
 
Kao Soap Co., Ltd. (1)
4,347,844 Porous sheet and process for preparation thereof 53 1980
 
KIMBERLY-CLARK WORLDWIDE, INC. (1)
4,578,069 Breathable baffle composite 52 1984
 
LIFESHIELD SCIENCES LLC (1)
2004/0158,312 Braided endoluminal device having tapered filaments 5 2003
 
MITSUBISHI KASEI CORPORATION (1)
4,472,328 Process for producing porous film or sheet 115 1982
 
MITSUBISHI RAYON CO., LTD. (1)
4,384,023 Porous polyethylene film 30 1981
 
NEWHART-JONES, LIMITED, 1070 GLEN OAKS BLVD., PASADENA 91105 CA A PARTNERSHIP OF CA (1)
4,430,278 Process for increasing the permeability of plastic membrane 9 1982
 
Nippon Oil Co., Ltd. (1)
4,197,148 Process for producing a permeable membrane 40 1977
 
SMITH AND NEPHEW ASSOCATED COMPANIES P.L.C. (1)
4,595,001 Surgical adhesive dressing 80 1983
 
Smith and Nephew Associated Companies Limited (1)
4,452,845 Moisture vapor transmitting film of polyurethane blended with an incompatible polymer 56 1983
 
The Procter & Gamble Company (1)
4,591,523 Apertured macroscopically expanded three-dimensional polymeric web exhibiting breatheability and resistance to fluid transmission 75 1985
 
Tokyo Serofan Co., Ltd. (1)
4,603,077 Water-absorbing laminate and production process thereof 14 1985
 
TORAY INDUSTRIES, INC. (1)
4,560,611 Moisture-permeable waterproof coated fabric 50 1983
 
Trustee for David Roth (1)
4,415,617 Base fabric for the manufacture of embroidery and lace and method of its preparation 12 1982
 
WARSAW ORTHOPEDIC, INC. (1)
2002/0138,146 Anterior expandable spinal fusion cage system 8 2002
 
Other [Check patent profile for assignment information] (1)
4,454,191 Waterproof and moisture-conducting fabric coated with hydrophilic polymer 75 1982

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
KIMBERLY-CLARK WORLDWIDE, INC. (25)
4,828,556 Breathable, multilayered, clothlike barrier 89 1986
5,370,132 Repellent-treated, barrier-coated nonwoven web 43 1990
5,509,142 Raised arm coveralls 18 1993
5,441,056 Repellent-treated, barrier-coated nonwoven web 25 1994
5,487,189 Coveralls having reduced seams and seamless shoulder construction and method of manufacture 18 1994
5,540,979 Porous non-woven bovine blood-oxalate absorbent structure 55 1994
5,458,590 Ink-printed, low basis weight nonwoven fibrous webs and method 107 1994
5,770,529 Liquid-distribution garment 11 1995
5,879,341 Absorbent article having a breathability gradient 51 1996
5,843,056 Absorbent article having a composite breathable backsheet 113 1996
6,139,675 Process of manufacturing a water-based adhesive bonded, solvent resistant protective laminate 16 1996
5,695,855 Durable adhesive-based ink-printed polyolefin nonwovens 32 1996
5,919,179 Absorbent article incorporating an absorbent assembly 12 1996
5,865,825 Absorbent assembly 13 1996
6,420,625 Breathable, liquid-impermeable, apertured film/nonwoven laminate and process for making same 38 1997
6,659,990 Absorbent article having a breathability gradient 4 1999
7,396,782 Laminated absorbent product with increased material strength in defined areas 9 2002
7,955,710 Ultrasonic bonding of dissimilar materials 0 2003
RE39307 Hot-melt adhesive having improved bonding strength 6 2004
7,241,493 Laminated structures having modified rubber-based adhesives 15 2004
7,632,764 Absorbent articles including ultrasonically bonded laminated structures 0 2006
7,879,745 Laminated absorbent product 0 2007
7,745,356 Laminated absorbent product with increased strength in defined areas 0 2007
7,922,861 Processes for increasing strength in defined areas of a laminated absorbent product 0 2008
7,786,032 Hot-melt adhesive based on blend of amorphous and crystalline polymers for multilayer bonding 2 2008
 
The Procter & Gamble Company (17)
5,019,062 Bicomponent material 73 1988
5,006,394 Multilayer polymeric film 195 1988
6,107,537 Disposable absorbent articles providing a skin condition benefit 123 1997
6,417,424 Breathable absorbent articles having odor control 9 1999
6,573,423 Disposable absorbent articles maintaining low vapor phase moisture content 9 2000
6,448,467 Disposable absorbent articles with improved skin dryness performance and with improved skin aeration 18 2000
6,436,508 Absorbent articles having a liquid swellable material coated breathable backsheet 6 2000
7,179,951 Absorbent barrier structures having a high convective air flow rate and articles made therefrom 7 2002
6,686,512 Disposable absorbent articles maintaining low vapor phase moisture content 4 2003
8,273,367 Articles comprising a mint odor-free cooling agent 0 2003
8,487,156 Hygiene articles containing nanofibers 1 2004
8,395,016 Articles containing nanofibers produced from low melt flow rate polymers 2 2004
7,291,763 Absorbent barrier structures having a high convective air flow rate and articles made therefrom 1 2006
7,851,668 Absorbent article and method for maintaining or improving skin health 0 2006
8,138,388 Absorbent article and method for maintaining or improving skin health 0 2010
8,420,883 Absorbent article and method for maintaining or improving skin health 0 2011
8,835,709 Articles containing nanofibers produced from low melt flow rate polymers 0 2013
 
MMI-IPCO, LLC (3)
5,204,156 Windproof and water resistant composite fabric with barrier layer 24 1991
5,268,212 Windproof and water resistant composite fabric with barrier layer 15 1993
7,560,399 Multi-layer composite fabric garment 2 2004
 
SCA INCONTINENCE CARE NORTH AMERICA, INC. (3)
5,505,719 Multilayered absorbent structures 35 1994
5,728,083 Multilayered absorbent structures 21 1995
5,569,226 Multilayered absorbent structures 40 1995
 
TREDEGAR FILM PRODUCTS CORPORATION (3)
6,258,308 Process for adjusting WVTR and other properties of a polyolefin film 49 1999
6,953,510 Method of making microporous breathable film 12 1999
6,843,949 Process for adjusting WVTR and other properties of a polyolefin film 18 2003
 
CLOPAY PLASTIC PRODUCTS COMPANY, INC. (2)
5,084,039 Disposable diapers, absorbent articles and thermoplastic sheet material having improving tape adhesion 22 1989
6,656,581 Incrementally stretched non-embossed films having high moisture vapor transmission rates (MVTRs) 3 2000
 
EXXON CHEMICAL PATENTS INC. (2)
4,929,303 Composite breathable housewrap films 88 1987
6,264,864 Process for producing polyolefin microporous breathable film 36 1999
 
PNC BANK, NATIONAL ASSOCIATION (2)
5,244,703 Vacuum cleaner bag 20 1992
5,306,534 Vacuum cleaner bag with electrostatically charged meltblown layer 51 1992
 
CLEMSON UNIVERSITY (1)
5,281,208 Fluid handling structure for use in absorbent articles 90 1992
 
EXXONMOBIL CHEMICAL PATENTS INC. (1)
6,706,228 Process for producing polyolefin microporous breathable film 7 2001
 
Hi-Tex, Inc. (1)
7,531,219 Treated textile fabric 0 2005
 
KIMBERLY-CLARK CORPORATION (1)
5,609,588 Article having a non-absorbent resilient layer 34 1994
 
LEUCADIA, INC. (1)
5,352,497 Sorbent pads for hazardous wastes 5 1992
 
The Procter & Gamble Company (1)
6,429,352 Disposable absorbent articles with breathable fabric feel backsheet 8 2000
 
UNI-CHARM CORPORATION (1)
5,451,217 Disposable diapers 12 1993
 
W.L. GORE ENTERPRISE HOLDINGS, INC. (1)
6,910,235 Adjustably insulative construct 2 2002
 
Other [Check patent profile for assignment information] (2)
5,103,500 Odor suppressing disposable garment shield 18 1991
7,893,313 Reusable incontinence product with insolubilized polyethylene glycol and DMDHEU 0 2005