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7615173 Process for preparing bicomponent fibers having latent crimp  
The present invention is directed to a process for preparing bicomponent fibers by melt spinning two semi-crystalline polymers differing in crystallization rate.
7192550 Method and apparatus for spinning a web of mixed fibers, and products produced therefrom  
A device and method for spinning polymer fibers utilizes one or more independent sources of polymer materials, pumps for feeding polymer material from each of the sources, and a series of...
7147815 Poly(trimethylene terephthalate) bicomponent fiber process  
A process for the preparation of a side-by-side or eccentric sheath-core bicomponent fiber wherein each component comprises a different poly(trimethylene terephthalate) composition.
7033530 Process for preparing poly(trimethylene terephthalate) bicomponent fibers  
A side-by-side or eccentric sheath-core bicomponent fiber wherein each component comprises a different poly(trimethylene terephthalate) composition and wherein at least one of the compositions...
7011885 Method for high-speed spinning of bicomponent fibers  
Highly crimped, fully drawn bicomponent fibers, prepared by melt-spinning, followed by gas-flow quenching, heat treatment and high speed windup, are provided, as are fine-decitex and highly uniform...
7008586 Method of extruding multi-component liquid filaments  
An apparatus for extruding multiple types of liquid materials into multi-component filaments. A pair of outer manifold elements sandwich an intermediate manifold element. Respective channels are...
7001555 Apparatus 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...
6984276 Method for preparing high bulk composite sheets  
This invention relates to a method for preparing nonwoven fabrics having an improved balance of properties in the machine and cross-directions. More specifically, the invention utilizes nonwoven...
6949210 Composite fiber having favorable post-treatment processibility and method for producing the same  
The present invention provides a polytrimethylene terephthalate composite fiber characterized in that the composite fiber is a plurality of single filament which comprises two kinds of polyester...
6946093 Method for meltblowing multi-component liquid filaments  
An apparatus for meltblowing multiple types of liquid materials into multi-component filaments. A pair of outer manifold elements sandwich an intermediate manifold element. Respective channels are...
6911174 Process of making multicomponent fiber incorporating thermoplastic and thermoset polymers  
The present invention provides a multicomponent fiber containing at least two polymer components arranged in distinct zones or segments across the cross-section of the fiber wherein at least one...
6887423 Process for making a stretchable nonwoven web  
A process for preparing nonwoven webs including multiple component continuous filaments having high levels of three-dimensional helical crimp utilizing draw rolls to provide a high degree of...
6838043 Method for the production of a synthetic leather  
A synthetic leather made of a nonwoven fabric impregnated and/or coated with a polymer, with a surface weight of 100 to 500 g/m 2 , and a tensile strength greater than 300 N/5 cm in the lengthwise...
6830640 Dual capillary spinneret for production of homofilament crimp fibers  
Robust homofilament fibers are meltspun from a differently shaped dual capillary spinneret design to induce differential fiber morphology to produce crimping. Crimping may further be aided by...
6827893 Folded fastener products  
Fastener products having a multiplicity of fastener elements extending from a strip-form base, the base including first and second attachment members for attachment of a substrate therebetween, are...
6814555 Apparatus and method for extruding single-component liquid strands into multi-component filaments  
A melt spinning apparatus includes fiber producing features to produce multi-component filaments by extruding two or more single-component strands that combine after extrusion and are then...
6803000 Process of making yarn from two types of polyester  
A soft stretch yarn produced by spinning yarn of conjugate fibers including two types of polyester in which one component is PTT at a take-up velocity of at least 1200 m/min, drawing at a drawing...
6780357 Splittable multicomponent polyester fibers  
Mechanically divisible multicomponent fibers have at least a component including poly(lactic acid) polymer and at least a second component including at aromatic polyester. The multicomponent fibers...
6776858 Process and apparatus for making multicomponent meltblown web fibers and webs  
A process for forming multiple component meltblown fibers by extruding a first distinct melt-processable polymer through a row of first extrusion orifices, simultaneously extruding a second...
6737009 Process and system for producing multicomponent spunbonded nonwoven fabrics  
A system and process for producing spunbond nonwoven fabric in which two or more polymeric components are separately melted and are separately directed through a distribution plate configured so...
6709996 Crimped multicomponent filaments and spunbond webs made therefrom  
Spunbond multicomponent filaments and nonwoven webs made from the filaments are disclosed. In accordance with the present invention, the multicomponent filaments contain a crimp enhancement...
6656400 Method for producing a pleatable filter material from a nonwoven fabric  
A method for producing a pleated filter material from a nonwoven fabric having spacers for the pleated folds formed from the filter material itself, a formed fabric made of stretched synthetic...
6630087 Process of making low surface energy fibers  
The present invention relates to a textile filament with a contact angle greater than or equal to 90 degrees. Such filaments are either water-repellent or resistant to chemicals, and yarns made...
6627025 Method and apparatus for extruding easily-splittable plural-component fibers for woven and nonwoven fabrics  
A spinneret 20 for producing easily splittable plural-component fibers includes two passages 22 and 26 for respectively delivering two incompatible polymers (A and B) to two sets of inclined...
6626657 Spinneret holder assembly for producing a continuous plastic multiple-component yarn with a preset component ratio  
A spinneret holder assembly for producing a continuous plastic multiple-component yarn with a preset component ratio, comprising in a mutually superimposed arrangement: a plate for conveying a...
6596207 Process of making a fiber  
A fiber having a surface with a relatively low coefficient of friction portion and a relatively high coefficient of friction portion. The fiber maybe produced by slitting a film/sheet which has...
6548431 Melt spun polyester nonwoven sheet  
This invention provides a process for making a nonwoven sheet of substantially continuous melt spun fibers by extruding melt spinnable polymer containing at least 30% by weight low IV poly(ethylene...
6544455 Methods for making a biodegradable thermoplastic composition  
A method for making a biodegradable thermoplastic composition. The thermoplastic composition may be used in methods to produce multi-component fibers and non-woven materials that demonstrate a...
6518208 Continuous fiber nonwoven and the method for producing it  
A continuous fiber nonwoven comprising composite continuous fibers having the spiral crimps obtained by compositely spinning two thermoplastic resins having the difference in the melting points of...
6506327 Process of making monofilaments  
In a method for producing a monofilament with reduced secondary binding forces of at least two commonly extruded polymers for the production of bristles or interdental cleaners which are slittable...
6454989 Process of making a crimped multicomponent fiber web  
The present invention provides continuously crimped propylene polymer nonwoven fabrics as well as processes for forming crimped multicomponent propylene polymer fibers by melt-attenuating extruded...
6403712 Process for the manufacture of spandex and the spandex made thereby  
Dry-spun polyurethane-based spandex ® containing 1-10 weight percent poly(vinylpyrrolidone) and a process of their preparation, are provided.
6332993 Process of making heat-retaining fibers  
A method for making heat-retaining fiber and fabrics. According to the present invention, the white conductive particles and the white particles with good radiating efficiency of far-infrared...
6280671 Process for preparing multilayer plastic composites of incompatible plastics  
Multilayer plastic composites containing at least two incompatible plastics, A and B, in which the layering sequence alternates between A and B, the layers of plastic B are discontinued at regular...
6264710 Layered alumina-based abrasive grit abrasive products, and methods  
Alumina-based abrasive material having at least an internal layer is provided. Preferably, the abrasive material results from co-extrusion of at least two different sols. In some preferred...
6197237 Method of making a multicomponent fiber and nonwoven web containing the same  
Disclosed is a thermoplastic composition comprising an unreacted mixture of an aliphatic polyester polymer as a continuous phase, polyolefin microfibers as a discontinuous phase encased within the...
6162382 Process of making multicomponent fiber  
Multicomponent fibers and methods of producing the same are provided such that an inter-domain boundary layer is interposed between distinct domains formed of incompatible polymers so as to...
6153138 Process for modifying synthetic bicomponent fiber cross-sections  
Bicomponent fibers of different cross-sections may be formed without changing the geometry of the spinneret orifices. More specifically, at least two polymers are co-melt-spun through an orifice of...
6074590 Process of making a bicomponent fiber  
Bicomponent fibers of isotactic polypropylene and syndiotactic polypropylene, methods of making such fibers and products made thereof.
6057256 Web of biocomponent blown fibers  
Fibrous webs of bicomponent fibers are made by extruding a layered molten mass through a row of side-by-side orifices into a high-velocity gaseous stream. Bicomponent fibers of small size can be...
6054002 Method of making a seamless tubular band  
Side-by-side conjugate filaments made from thermoplastic elastomers and spunbond-type polyolefins exhibit an extremely high propensity to self-crimp. At appropriate polymer ratios and processing...
6017479 Process of making a multiple domain fiber having an inter-domain boundary compatibilizing layer  
Multicomponent fibers and methods and apparatus for producing the same are provided such that an inter-domain boundary layer is interposed between distinct domains formed of incompatible polymers...
5965084 Process for producing non-woven fabrics of ultrafine polyolefin fibers  
A process for producing a non-woven fabric of ultrafine polyolefin fibers by subjecting a web of splittable conjugate polyolefin fibers to a water needle processing, and non-woven fabric thus...
5919410 Method of fiber splitting for conjugated fiber  
A method for fiber splitting for conjugated fiber, which includes the steps of i) preparing polymers: charging a first polymer and a second polymer respectively into corresponding extruders and...
5895710 Process for producing fine fibers and fabrics thereof  
The disclosed invention relates to split fibers and improved means and methods for obtaining them as well as their use in nonwovens and incorporation into personal care and other products....
5876650 Process of making fibers of arbitrary cross section  
The present invention relates, in general, to fiber spinning and, in particular, to a process of spinning fibers of more than one cross-sectional component and to fibers produced thereby.
5853635 Method of making heteroconstituent and layered nonwoven materials  
The present invention is directed to a method of forming a heteroconstituent nonwoven web including a mixture of different filament types simultaneously formed into the same web. The filament types...
5837179 Method of making abrasive filaments comprising abrasive-filled thermoplastic elastomer  
An abrasive filament, including a thermoplastic elastomer having abrasive particles dispersed and adhered therein, exhibits improved life over previously known abrasive-filled polymeric filaments....
5811045 Process of making multicomponent fibers containing a nucleating agent  
There is provided in accordance with the present invention a process for making a helically crimped conjugate fiber containing at least a first polymeric composition and a second polymeric...
5800746 Methods of making pigmented synthetic filaments  
Nonaqueous additive systems which includes dispersant-coated pigments physically dispersed in a liquid nonaqueous polymeric carrier are added directly to a melt flow of a polymeric host material...
Matches 1 - 50 out of 240 1 2 3 4 5 >