Quotables
"Fooling around with alternating current is just a waste of time. Nobody will use it, ever."
Thomas Edison ; 1889
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7229688 | Method and apparatus for high denier hollow spiral fiber A self-texturing hollow fiber that exhibits a desirable tendency to coil rather than to bend sharply or zig-zag. In one embodiment the invention is a hollow polymer filament having a generally cylindrical cross-section. The filament is further defined by a cylindric... | 06/12/2007 |
| 6883668 | Method of automatic debris separation The invention is an automatic debris separation process for effecting air separation of fragmented materials, such as size-reduced fiber feedstocks derived from textile wastes. The process uses high-velocity air within an elutriation assembly to efficiently remove f... | 04/26/2005 |
| 6883667 | Automatic debris separation system The invention is an automatic debris separation system for effecting air separation of fragmented materials, such as size-reduced fiber feedstocks derived from textile wastes. The system uses high-velocity air within an elutriation assembly to efficiently remove fer... | 04/26/2005 |
| 6832904 | Apparatus for cooling and finishing melt-spun filaments A hollow quench stick tube capable of cooling and finishing melt-spun filaments comprises in one embodiment a hollow cooling tube connected to a hollow support tube, a finish applicator that substantially surrounds the hollow support tube, and a spoiler skirt that s... | 12/21/2004 |
| 6803082 | Methods for the late introduction of additives into polyethylene terephthalate The invention is a method for the late introduction of additives into polyethylene terephthalate. The method employs a reactive carrier that functions as a delivery vehicle for one or more additives. The reactive carrier reacts with the polyethylene terephthalate, t... | 10/12/2004 |
| 6797209 | Method and apparatus for high denier hollow spiral fiber An apparatus and method for producing self-texturing hollow fiber that exhibits a desirable tendency to coil rather than to bend sharply or zig-zag. In one embodiment the invention is a spinneret for the production of hollow filament having first and second curved s... | 09/28/2004 |
| 6752336 | Carpet recycling method The invention is an efficient and cost-effective method of recovering carpet materials by reducing carpet into size-reduced fibers, slurrying the size-reduced fibers in a liquid medium, and then selectively separating the size-reduced fibers in a centrifuge. The pre... | 06/22/2004 |
| 6746230 | Apparatus for high denier hollow spiral fiber An apparatus for producing self-texturing hollow fiber that exhibits a desirable tendency to coil rather than to bend sharply or zig-zag. In one embodiment the invention is a spinneret for the production of hollow filament having first and second curved slots where ... | 06/08/2004 |
| 6727306 | Polymer resins having reduced frictional properties The invention is a polymer resin that includes between about 20 and 200 ppm of an inert particulate additive, preferably selected from the group consisting of surface-modified talc and surface-modified calcium carbonate. The polymer resin is capable of being formed ... | 04/27/2004 |
| 6710158 | Methods for making polyester bottle resins having reduced frictional properties The invention is a polyester resin that includes between about 20 and 200 ppm of an inert particulate additive, preferably selected from the group consisting of surface-modified talc and surface-modified calcium carbonate. The invention is also a method of making th... | 03/23/2004 |
| 6706393 | Polyester fiber tow having substantially uniform primary and secondary crimps Disclosed is a polyester fiber tow formed of polyester fibers having uniform primary and secondary crimps. The uniformly crimped polyester fibers possess excellent strength characteristics. Also disclosed is a method for producing such uniformly crimped polyester fi... | 03/16/2004 |
| 6623853 | Polyethylene glycol modified polyester fibers and method for making the same Disclosed is a method of copolymerizing polyethylene glycol (PEG) and branching agent into polyethylene terephthalate (PET) to achieve a polyethylene glycol-modified polyester composition that can be spun into filaments. Fabrics made from fibers formed fr... | 09/23/2003 |
| 6599596 | Methods of post-polymerization injection in continuous polyethylene terephthalate production The invention is a novel method for the late introduction of additives into a continuous process for making polyethylene terephthalate. The method employs a reactive carrier that functions as a delivery vehicle for one or more additives. The reactive carr... | 07/29/2003 |
| 6590069 | Methods of post-polymerization extruder injection in condensation polymer production The invention is a novel method for the late introduction of additives into condensation polymers. The method employs a reactive carrier that functions as a delivery vehicle for one or more additives. The reactive carrier reacts with the condensation poly... | 07/08/2003 |
| 6582817 | Nonwoven fabrics formed from polyethylene glycol modified polyester fibers and method for making the same Disclosed is a nonwoven fabric that is formed of polyethylene glycol modified copolyester staple fibers. The copolyester staple fibers include polyethylene terephthalate in an amount sufficient for the copolyester staple fibers to possess dimensional stab... | 06/24/2003 |
| 6573359 | Methods of post-polymerization injection in condensation polymer production The invention is a novel method for the late introduction of additives into a process for making condensation polymers. The method employs a reactive carrier that functions as a delivery vehicle for one or more additives. The reactive carrier reacts with ... | 06/03/2003 |
| 6572966 | Polyester fibers having substantially uniform primary and secondary crimps A method is disclosed for producing polyester fibers having uniform primary and secondary crimps. The method includes the steps of advancing fibers into a stuffer box having an upper doctor blade and a lower doctor blade, positioning the upper doctor blad... | 06/03/2003 |
| 6569991 | Methods of post-polymerization extruder injection in polyethylene terephthalate production The invention is a novel method for the late introduction of additives into polyethylene terephthalate. The method employs a reactive carrier that functions as a delivery vehicle for one or more additives. The reactive carrier reacts with the polyethylene... | 05/27/2003 |
| 6509091 | Polyethylene glycol modified polyester fibers Disclosed is a polyethylene glycol modified copolyester fiber that has exceptional moisture management characteristics and that can be formed into exceptionally comfortable fabrics. The copolyester fiber includes polyethylene terephthalate in an amount su... | 01/21/2003 |
| 6500890 | Polyester bottle resins having reduced frictional properties and methods for making the same The invention is a polyester resin that includes between about 20 and 200 ppm of an inert particulate additive, preferably selected from the group consisting of surface-modified talc and surface-modified calcium carbonate. The invention is also a method o... | 12/31/2002 |
| 6485829 | Polyester modified with polyethylene glycol and pentaerythritol A polyester composition is disclosed that is particularly suitable for filament. The composition is formed of polyethylene terephthalate; polyethylene glycol in an amount sufficient to increase the wetting and wicking properties of a filament made from th... | 11/26/2002 |
| 6454982 | Method of preparing polyethylene glycol modified polyester filaments Disclosed is a method of copolymerizing polyethylene glycol (PEG) into polyethylene terephthalate (PET) to achieve a polyethylene glycol-modified polyester composition that can be spun into filaments. The method includes the steps of copolymerizing polyet... | 09/24/2002 |
| 6399705 | Method of preparing polyethylene glycol modified polyester filaments Disclosed is a method of copolymerizing polyethylene glycol (PEG) into polyethylene terephthalate (PET) to achieve a polyethylene glycol-modified polyester composition that can be spun into filaments. The method includes the steps of copolymerizing polyet... | 06/04/2002 |
| 6383635 | Melt spinning colored polycondensation polymers The invention is a method of coloring melt spun condensation polymers while avoiding hydrolytic degradation and maintaining the melt viscosity of the polymer. The method comprises adding a liquid dispersion of a colorant to the melt phase of a condensatio... | 05/07/2002 |
| 6335422 | Method of preparing modified polyester bottle resins The present invention is a method of preparing a high molecular weight copolyester bottle resin that has excellent melt processing characteristics. The method includes the steps of reacting a diacid or diester component and a diol component to form modifi... | 01/01/2002 |
| 6322886 | Polyethylene glycol modified polyester fibers, yarns, and fabrics and method for making the same Disclosed is a method of copolymerizing polyethylene glycol (PEG) and branching agent into polyethylene terephthalate (PET) to achieve a polyethylene glycol-modified polyester composition that can be spun into filaments. Fabrics made from fibers formed fr... | 11/27/2001 |
| 6303739 | Method of preparing polyethylene glycol modified polyester filaments Disclosed is a method of copolymerizing polyethylene glycol (PEG) into polyethylene terephthalate (PET) to achieve a polyethylene glycol-modified polyester composition that can be spun into filaments. The method includes the steps of copolymerizing polyet... | 10/16/2001 |
| 6294254 | Polyester modified with polyethylene glycol and pentaerythritol A polyester composition is disclosed that is particularly suitable for filament. The composition is formed of polyethylene terephthalate; polyethylene glycol in an amount sufficient to increase the wetting and wicking properties of a filament made from th... | 09/25/2001 |
| 6291066 | Polyethylene glycol modified polyester fibers and method for making the same Disclosed is a method of copolymerizing polyethylene glycol (PEG) and branching agent into polyethylene terephthalate (PET) to achieve a polyethylene glycol-modified polyester composition that can be spun into filaments. Fabrics made from fibers formed fr... | 09/18/2001 |
| 6284866 | Method of preparing modified polyester bottle resins The present invention is a method of preparing a high molecular weight copolyester bottle resin that has excellent melt processing characteristics. The method includes the steps of reacting a diacid or diester component and a diol component to form modifi... | 09/04/2001 |
| 6250060 | Method of producing improved knit fabrics from blended fibers A high efficiency method of producing a high quality knit fabricis diclosed. The method includes the steps of drafting a blended sliver of cotton fibers and polyester fibers in a four roll draffing zone in which the nip to nip spacing in the break zone is... | 06/26/2001 |
| 6221488 | Modified polyester with high intrinsic viscosity at moderate strength A method is disclosed of producing a blended fabric of polyester and cotton with superior low pilling characteristics. The method comprises polymerizing a melt consisting essentially of terephthalic acid, ethylene glycol and at least about 1300 parts per ... | 04/24/2001 |
| 6182685 | Injector structure for liquid additives An injector structure is disclosed for delivering liquid additives, and particularly colorants, into a polyester production system capable of being cleaned without removal from a production line. The device includes a valve body with an internal channel e... | 02/06/2001 |
| 6134758 | Method of producing improved crimped polyester fibers A method is disclosed for producing polyester fibers having uniform primary and secondary crimps. The method includes the steps of advancing fibers into a stuffer box having an upper doctor blade and a lower doctor blade, positioning the upper doctor blad... | 10/24/2000 |
| 6110405 | Melt spinning colored polycondensation polymers The invention is a method of coloring melt spun condensation polymers while avoiding hydrolytic degradation and maintaining the melt viscosity of the polymer. The method includes adding a liquid dispersion of a colorant to the melt phase of a condensation... | 08/29/2000 |
| 6110587 | Modified polyester with high intrinsic viscosity at moderate strength A method is disclosed of producing a blended fabric of polyester and cotton with superior low pilling characteristics. The method comprises polymerizing a melt consisting essentially of terephthalic acid, ethlyene glycol and at least about 1300 parts per ... | 08/29/2000 |
| 6067785 | Method of producing high quality dark dyeing polyester and resulting yarns and fabrics A method is disclosed for spinning polyester staple to produce dark dyeing yarns as compared to yarns having an otherwise similar composition. The method includes spinning polyester staple into yarn, in which the polyester includes between about 0.5 and 4... | 05/30/2000 |
| 6035621 | Spinning apparatus, method of producing yarns, and resulting yarns A spinning apparatus is disclosed according to the invention having a drafting zone comprising at least four roll pairs for drawing a sliver comprising one or more types of staple fibers. The rolls pairs include a back roll pair, intermediate roll pairs a... | 03/14/2000 |
| 6031065 | Polyester copolymers from naphthalate and related esters A method is disclosed of producing a copolymer of polyethylene terephthalate and polyethylene naphthalate. The method comprises esterifying a combination of a diester of naphthalene, terephthalic acid, and ethylene glycol to produce an esterification reac... | 02/29/2000 |
| 5970700 | Drafting apparatus and method for producing yarns A drafting and spinning apparatus is disclosed that produces highly uniform yarns with improved mechanical properties. The apparatus comprises a plurality of pairs of drafting rolls for drawing a sliver formed of one or more types of staple fibers, each f... | 10/26/1999 |
