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| Number | Title | Issue Date |
| 8444896 | Water-dispersible and multicomponent fibers from sulfopolyesters Disclosed are water-dispersible fibers derived from sulfopolyesters having a Tg of at least 25° C. The fibers may contain a single sulfopolyester or a blend of a sulfopolyester with a water-dispersible or water-nondispersible polymer. Also disclosed are multicompon... | 05/21/2013 |
| 7281917 | Extrusion/reaction injection molding system A method of manufacturing an extruded part having an exterior shell and a core foam material. The method includes extruding the exterior shell from an extrusion die, and reaction injection molding the core foam material within an interior of the exterior shell using... | 10/16/2007 |
| 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 distribution plates with surface grooves, through holes and/or slots together ... | 03/20/2007 |
| 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. ... | 12/12/2006 |
| 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 comprises styrene polymer dispersed throughout the poly(trimethylene tere... | 04/25/2006 |
| 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 polyester bicomponent fibers. ... | 03/14/2006 |
| 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 formed between opposing sides of the outer manifold elements and the re... | 03/07/2006 |
| 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 recess selectively receives a configuration insert, such as a side-b... | 02/21/2006 |
| 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 webs that include relatively low levels of multiple-component fibers ha... | 01/10/2006 |
| 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 components laminated to each other in a side-by-side manner or an eccen... | 09/27/2005 |
| 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 formed between opposing sides of the outer manifold elements and the ... | 09/20/2005 |
| 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 component of the fiber contains a thermoplastic polymer and at least on... | 06/28/2005 |
| 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 orientation to each of the polymeric components by mechanically drawing the... | 05/03/2005 |
| 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/m2, and a tensile strength greater than 300 N/5 cm in the lengthwise and the crosswise direction, where the nonwoven fabric is ma... | 01/04/2005 |
| 6833104 | 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 distribution plates with surface grooves, through holes and/or slots together ... | 12/21/2004 |
| 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 quenching and drawing of the fibers. ... | 12/14/2004 |
| 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 formed by continuously introducing molten resin to a gap defined adj... | 12/07/2004 |
| 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 attenuated by process air. The two or more liquid materials do not contact on... | 11/09/2004 |
| 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 temperature of 50 to 80° C. at a draw ratio such that the drawn yarn ... | 10/12/2004 |
| 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 are particularly useful in the manufacture of nonwoven structures, a... | 08/24/2004 |
| 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 distinct melt-processable polymer through a row of second extrusion orifices... | 08/17/2004 |
| 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 that the separate molten polymer components combine at a multiplicity o... | 05/18/2004 |
| 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 additive. Specifically, the crimp enhancement additive is added to the polym... | 03/23/2004 |
| 6692687 | 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 polyester bicomponent fibers.... | 02/17/2004 |
| 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 fibers and thermoplastic and/or thermally cross-linked binding... | 12/02/2003 |
| 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 therefrom readily processible into fabrics. In a detailed emb... | 10/07/2003 |
| 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 capillaries 34-39, 46-51. The two sets of capillaries converge t... | 09/30/2003 |
| 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 first component and at least one second component; a distribut... | 09/30/2003 |
| 6616723 | Method and apparatus for spinning a web of mixed fibers, and products produced therefrom A fiber spinning device and process for manufacturing a web of fibers including a homogeneous mixture of fibers of different characteristics. Monocomponent fibers of different polymers can be extruded side-by-side from the same die system. Sheath/core bic... | 09/09/2003 |
| 6605248 | Process and apparatus for making multi-layered, multi-component filaments The present invention is directed to a process for forming a plurality of multi-layered filaments from multiple thermoplastic synthetic polymers and an apparatus containing a melt spinning beam which comprises multiple polymer inlet passages each communic... | 08/12/2003 |
| 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 been coextruded, laminated and/or coated, or by partially coa... | 07/22/2003 |
| 6596049 | Method and apparatus for spinning a web of mixed fibers, and products produced therefrom A fiber spinning device and process for manufacturing a web of fibers in the nature of a homogeneous mixture of fibers of different characteristics. Monocomponent fibers of different polymers can be extruded side-by-side from the same die system. Sheath/c... | 07/22/2003 |
| 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 terephthalate), drawing the extruded fiber filaments at a... | 04/15/2003 |
| 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 higher contact angle hysteresis, quicker intake times, and imp... | 04/08/2003 |
| 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 15° C. or more is provided, and it is characterized in th... | 02/11/2003 |
| 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 substantially axially through the action of mechanical for... | 01/14/2003 |
| 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 multicomponent fibers with heated or unheated air wherein ... | 09/24/2002 |
| 6403712 | Process for the manufacture of spandex and the spandex made thereby Dry-spun polyurethane-based spandex .RTM. containing 1-10 weight percent poly(vinylpyrrolidone) and a process of their preparation, are provided.... | 06/11/2002 |
| 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 radiation are added in fiber-forming polymers to obtain the mix... | 12/25/2001 |
| 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 intervals, and the resulting gaps in the layers are filled... | 08/28/2001 |
