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Class 442/400 - Melt-blown nonwoven fabric


Subclass of Class 442 - Fabric (woven, knitted, or nonwoven textile or cloth, etc.)
Definition: Subject matter wherein the nonwoven fabric is melt blown.
No. of patents: 292
Last issue date: 08/02/2011


1                
NumberTitleIssue Date
7989371Meltblown fiber web with staple fibers
A porous nonwoven web and method of making are disclosed, wherein the web contains meltblown fibers and staple fibers. The meltblown fibers may be present as a bimodal mixture of microfibers and mesofibers, and comprise an intermingled mixture with staple fibers fur...
08/02/2011
7989372Molded respirator comprising meltblown fiber web with staple fibers
A molded respirator and method of making are disclosed, wherein the molded respirator is made from a porous nonwoven web containing meltblown fibers and staple fibers. The meltblown fibers may be present as a bimodal mixture of microfibers and mesofibers, and compri...
08/02/2011
7902096Monocomponent monolayer meltblown web and meltblowing apparatus
A porous monocomponent nonwoven web contains a bimodal mass fraction/fiber size mixture of intermingled continuous microfibers and larger size fibers of the same polymeric composition. There are at least five times as many microfibers as larger size fibers, and a hi...
03/08/2011
7468335High-strength meltblown polyester webs
A meltblown web of polymeric polyester fibers, where the polyester polymer includes an aromatic dicarboxylic acid, a butanediol, and at least one additional branched or cycloaliphatic diol compound. The webs of the invention achieve high tensile strength values, and...
12/23/2008
7404811Disposable garment comprising meltblown nonwoven backsheet
A disposable garment includes a nonwoven backsheet formed by melt-blowing. The melt-blown nonwoven web has a basis weight of from about 3 g/m2 to about 60 g/m2 and an air permeability value of at least about 15 cm3/cm2/sec...
07/29/2008
7405171Elastic nonwoven fabric and fiber products manufactured therefrom
PROBLEM TO BE SOLVED: To provide an elastic nonwoven fabric with a good elasticity, adequate strength under elongation, good antiblocking property and favorable feeling, suitable for fiber products, at low cost, as well as fiber products using the same. SOLUT...
07/29/2008
7381666Breathable film and fabric having liquid and viral barrier
A breathable viral barrier film, viral barrier laminate and surgical articles including the film or laminate are provided. The film has viral barrier properties in the presence of low surface tension liquids, as well as in the presence of aqueous liquids. The film i...
06/03/2008
7365031Conductive pressure sensitive textile
A fabric including within its construction a first elongated electrical conductor crossed by a second elongated electrical conductor, the conductors being normally biased apart at a crossover point of said fibres with an air gap between them, whereby application of ...
04/29/2008
7361317Single step sterilization wrap system
Disclosed herein is a single step sterilization wrapping material suitable for use, as an example, in wrapping surgical instruments and supplies for sterilization, transportation and storage. The material includes separate inner and outer wraps which, unlike previou...
04/22/2008
7329621Stretchable film laminates and methods and apparatus for making stretchable film laminates
Stretchable film laminates including a layer of elastomeric openwork, such as a plurality of elastic strands or an elastomeric mesh structure. The stretchable film laminates may include a film layer bonded to the layer of elastomeric openwork, with the film layer ha...
02/12/2008
7329623Durable hydrophilic nonwoven mat
A nonwoven web of a wettable fiber matrix, wherein the wettable fiber matrix are thermoplastic polymeric fibers blended with at least one hydrophilic melt additive. In alternate embodiments, the nonwoven web further includes binder fibers which may be wettable or no...
02/12/2008
7328463Water-soluble articles and methods of making and using the same
Water-soluble articles and methods of making, using and disposing of the water-soluble articles are disclosed. ...
02/12/2008
7312167Breathable multilayer films for use in absorbent articles
A multilayer, breathable film that contains a base layer and at least one skin layer is provided. The skin layer is incorporated with a filler that is capable of reducing odor. The base layer may be substantially free of the odor-reducing filler to maintain the inte...
12/25/2007
7275720Actively cooled ceramic thermal protection system
An apparatus and method for thermal protection is provided. A thermal protection apparatus includes a porous layer attached to an inner structural member requiring thermal protection. The porous layer serves as both a cooling air plenum and a transpiring medium. The...
10/02/2007
7262239Internal softening additives for polyolefin-containing materials and methods of using the same
Methods for imparting softness to polyolefin-containing articles are described wherein the methods comprise: (a) providing at least one compound selected from the group consisting of compounds of the general formula (I) and compounds of the general formula (II):
08/28/2007
7217456Plaited double-knit fabric with moisture management and improved thermal insulation
A composite textile fabric for rapidly moving moisture away from the skin, and for retaining body heat, is provided. The composite fabric includes an inner fabric layer made of a yarn comprising a plurality of fibers primarily of polyester or other synthetic yarns w...
05/15/2007
7196026Fibers providing controlled active agent delivery
An agend fiber composed of an active agent/positive dispensing carrier combination and a fiber forming component. As a fiber or nonwoven or textile fabric containing the fiber, the agend delivers the active agent at a desired rate under conditions of use. Product ap...
03/27/2007
7195621Disposable garment comprising meltblown nonwoven backsheet
A disposable garment includes a nonwoven backsheet formed by melt-blowing. The melt-blown nonwoven web has a basis weight of from about 3 g/m2 to about 60 g/m2 and an air permeability value of at least about 15 cm3/cm2/sec...
03/27/2007
7192896Disposable cleaning product
The invention is directed at a disposable dry cleansing article that is formed from a melt extruded fibrous web that has incorporated into the fibers forming the web from 0.5 to 20 percent by weight of a melt extruded lathering surfactant. The invention, dry article...
03/20/2007
7183231Textured materials and method of manufacturing textured materials
The present invention is directed to a textile material comprising yarns wherein the material is textured by subjecting specified regions of the material to incremental strains sufficient to cause yarn failures or yarn elongation in yarns running in one direction wi...
02/27/2007
7157513Hydrophilic additives
The invention relates to hydrophilic additives for synthetic fibres containing polyolefin; said additives are represented by general formula (I): A—B—C—B—A wherein A is a radical R—COO, wherein R represents a saturated, cross-linked or non-cross-linked alk...
01/02/2007
7137510Filter element
A filter element in which several layers (2, 3, 5, 7, 8) made of a filtering medium are joined contiguously in the direction of flow with at least one layer (2, 7) made of a filtering medium with a high storage capacity and a low degree of separation b...
11/21/2006
7070884Separator with improved barrier performance
The present invention is directed to a nonwoven composite fabric for use on batteries or fuel cells comprising one or more layers of fine denier spunbond filaments and at least one layer of barrier material, wherein said nonwoven composite fabric has an improved bar...
07/04/2006
7063917Laminated battery separator material
A nonwoven material having a laminated construction and including a first layer of nonwoven fibers defining a first surface of the material; a second layer of nonwoven fibers defining the opposite surface of the material; and a third layer of nonwoven fibers located...
06/20/2006
7060639Non-woven inorganic fiber mat
A non-woven mat of inorganic fiber is disclosed having a substance which is lower at the edges of the mat than in the remainder of the mat. Apparatus for making such a mat includes: a source of a slurry of inorganic fiber in a liquid; a forming wire disposed to move...
06/13/2006
7052563Apparatus and method for fiber batt encapsulation
Disclosed is an apparatus and a method for at least partially encapsulating a fiber batt or other substrate by applying a polymer fiber layer to one or more surfaces of the fiber batt or substrate by melt-blowing. The melt-blowing assemblies are arranged and configu...
05/30/2006
7049254Multiple component meltblown webs
Multiple component meltblown webs are disclosed in which the meltblown fibers include an ionomer on at least a portion of the peripheral surface thereof. The meltblown webs are especially useful in dust wipe applications. ...
05/23/2006
7037866Two-sided nonwoven fabric
A nonwoven fabric comprises a first layer formed of staple fibers having a smooth outer surface, a second layer formed of staple fibers having an outer surface with a roughened texture and a third, spunbond layer sandwiched between the first and second layers. A bin...
05/02/2006
7033965Cleaning Sheet
A cleaning sheet having a cleaning surface comprising a cleaning area for cleaning a piled surface and a low-friction area which adjoins the cleaning area. The cleaning area has a coefficient of static friction of 0.1 to 4.0 against wool press felt (JIS L3201 R33W)....
04/25/2006
7022630Nonwoven protective fabrics with conductive fiber layer
Nonwoven barrier laminates are provided having a desirable balance of properties, including barrier properties, strength, static dissipation, fluid repellency, aesthetics and tactile properties. The nonwoven barrier laminates of the invention generally include outer...
04/04/2006
7022632Composite nonwoven fabric for protective clothing and production method thereof
The composite nonwoven fabric for protective clothing of the present invention comprises (A) a water vapor-permeable, water-resistant nonwoven fabric made of polyolefin-based ultra-fine fibers having an average fiber diameter of 5 μm or less, (B) a heat-bonding non...
04/04/2006
7018945Composition and method for treating fibers and nonwoven substrates
A treatment composition and a method for treating substrates that includes contacting at least a portion of the substrate with (a) an alkyl polyglycoside or a derivative of an alkyl polyglycoside; and (b) a polysaccharide, a modified polysaccharide, a derivative of ...
03/28/2006
7015155Elastomeric adhesive
Elastomeric adhesive compositions including a high softening point tackifier resin in combination with a base polymer can be used to create laminates having effective adhesion and elastic properties. The compositions may also include a low softening point additive, ...
03/21/2006
7005394Tackified thermoplastic-epoxy pressure sensitive adhesives
A pressure sensitive adhesive composition comprised of: a) 75 to 99.9 weight percent of a tackified thermoplastic polymer component comprising 1) 1–99 weight percent of a thermoplastic polymer substantially without epoxy-binding or ester functions, and 2) 1–99 w...
02/28/2006
7001555Apparatus for producing multi-component liquid filaments
A melt spinning apparatus including a spinpack with a die tip block having a recess with a converging portion, such as an angled trough, which terminates in a row of filament discharge outlets. The recess selectively receives a configuration insert, such as a side-b...
02/21/2006
6967178Elastic strand laminate
An elastic strand laminate, and a method of making an elastic strand laminate. The elastic strand laminate includes a plurality of self-adhering elastic strands made up of an elastomeric adhesive composition. The self-adhering elastic strands can be laminated to one...
11/22/2005
6951673Mineral wool element with enhanced reaction to fire, air duct comprising the same
An element essentially consisting of mineral wool exhibits an enhanced reaction to fire. Such an element is especially in the form of a panel and is used for the construction of air ducts. The panels comprise a glass wool core, said core being formed from glass fibe...
10/04/2005
6946506Fibers comprising starch and biodegradable polymers
Environmentally degradable finely attenuated fibers produced by melt spinning a composition comprising destructurized starch, a biodegradable thermoplastic polymer, and a plasticizer are disclosed. The present invention is also directed to highly attenuated fibers c...
09/20/2005
6936554Nonwoven fabric laminate with meltblown web having a gradient fiber size structure
A nonwoven fabric laminate having a meltblown layer positioned between two spunbond nonwoven layers. The meltblown layer having a gradient fiber size structure across a thickness thereof with at least one layer of coarse meltblown fibers. In one embodiment, the grad...
08/30/2005
6926931Dual sided nonwoven cleaning articles
The present invention relates to a dual performance cleaning article, wherein said cleaning article is comprised of a first abrasive meltblown surface that facilitates the process of loosening particulates, such as dust and dirt, and an opposing second soft, air per...
08/09/2005
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