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| Number | Title | Issue Date |
| 7973174 | Process of making 3-aminopentanenitrile A process for making 3-aminopentanenitrile from a crude 2-pentenenitrile (“crude 2PN”) comprising 2-pentenenitrile, 2-methyl-2-butenenitrile, and 2-methyl-3-butenenitrile includes contacting the crude 2PN with an ammonia-containing fluid and water. The ammonia-c... | 07/05/2011 |
| 7897801 | Process for the preparation of dinitriles The present invention relates to a process for the preparation of dinitriles by hydrocyanation of unsaturated nitrile compounds in the presence of a catalyst based on a metal element in the zero oxidation state and on organophosphorus ligands;the invention relates m... | 03/01/2011 |
| 7880028 | Process for making 3-pentenenitrile by hydrocyanation of butadiene The invention provides a continuous process for the production of 3-pentenenitrile, comprising: (a) contacting, in a reaction zone, a hydrogen cyanide-containing feed, a 1,3-butadiene-containing feed, and a catalyst precursor compo... | 02/01/2011 |
| 7709674 | Hydrocyanation process with reduced yield losses A hydrocyanation process produces adiponitrile and other dinitriles having six carbon atoms. The process involves forming a reaction mixture in the presence of at least one Lewis acid. The reaction mixture includes ethylenically unsaturated nitrites having five carb... | 05/04/2010 |
| 7709673 | Process for making 3-pentenenitrile by hydrocyanation of butadiene The invention provides a continuous process for the production of 3-pentenenitrile comprising: (a) contacting, in a reaction zone, a hydrogen cyanide-containing feed, a butadiene-containing feed, and a catalyst precursor compositio... | 05/04/2010 |
| 7201816 | High bulk composite sheets and method for preparing A multi-layer composite sheet comprising a shrinkable layer intermittently bonded a to a gatherable layer with the bonds separated by a specified distance and wherein the shrinkable layer can shrink and at the same time gather the gatherable layer between the bonds.... | 04/10/2007 |
| 7117695 | Method to make circular-knit elastic fabric comprising spandex and hard yarns Circular-knit, elastic, single-knit jersey fabric, of spun and/or continuous filament hard yarns with bare spandex plated in every course, has a cover factor in the range of 1.3 to 1.9, a basis weight from 140 to 240 g/m2, an elongation of 60% or more and... | 10/10/2006 |
| 7036299 | Stretch polyster/cotton spun yarn A spun yarn of cotton (35 wt %-80 wt %) and a bicomponent staple fiber (20wt%-65wt%) of poly(ethylene terephthalate) and poly(trimethylene terephthalate) based on total weight of the spun yarn. The spun yarn has a total boil-off shrinkage of about 22%. The bicompone... | 05/02/2006 |
| 7018946 | Fabric including polymer filaments having profiled cross-section The present invention is directed to a multi-filament yarn formed at least in part from filaments having cross-sectional zig-zag or double “W” shape with a 180 degree axis of symmetry. The filaments have a denier per filament generally in the range of about 0.1 ... | 03/28/2006 |
| 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 |
| 7008694 | Polymer fibers, fabrics and equipment with a modified near infrared reflectance signature A modified synthetic polymer filament and multifilament yarn of polyamide or polyester filament containing a carbon black polymer additive, and fabrics from these yarns, are disclosed. These melt spun filaments are especially well-suited for use in garments and equi... | 03/07/2006 |
| 7005395 | Stretchable composite sheets and processes for making This invention relates to an improved method for preparing stretchable multiple-component bonded composite sheets which involves bonding a fibrous layer of spirally-crimpable multiple-component continuous filaments or staple fibers to one or more non-spirally-crimpa... | 02/28/2006 |
| 6984708 | Spandex of a particular composition and process for making same The invention provides spandex having improved hysteresis and a method for making such spandex. The spandex of the invention comprises the polyurethaneurea reaction product of: (a) poly(tetramethylene ether) glycol | 01/10/2006 |
| 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 |
| 6974628 | Process for treating a polyester bicomponent fiber The invention provides a process for treating a polyester fiber comprising the steps of providing a bicomponent fiber comprising poly(ethylene terephthalate) and poly(trimethylene terephthalate) which has been heat-treated at a first temperature and cooled to lower ... | 12/13/2005 |
| 6966815 | Shaped anti-roll supports and garments incorporating such supports A shaped support for a body-shaping garment, including a foundation garment, such as a brassiere or girdle, is formed from a single or from multiple layers of a plastic material having certain flex modulus and perpendicular and in-plane apparent stiffnesses, such as... | 11/22/2005 |
| 6942896 | Elastic nonwoven sheet This invention relates to stretchable nonwoven sheets prepared by substantially uniformly impregnating a necked nonwoven substrate with an elastomeric polymer by treatment with an elastomeric polymer solution. The nonwoven sheet is useful in the manufacture of diape... | 09/13/2005 |
| 6942706 | Vat acid dyeing of textile fibers A process for dyeing certain textile fibers, utilizing vat acid dyeing and specific additional (second) reducing agents such as α-hydroxyalkylsulfinic acids, their salts and 1,2,4-trithiolane, resulting in excellent depth of shade and washfastness, is provided.... | 09/13/2005 |
| 6926508 | Steam distribution ring for spinning machines A spinneret steam blanketing system for blanketing the face of a spinneret with gas. The system includes a steam distribution ring surrounding a filament array, where the steam distribution ring abuts the spin head and is removably mounted to said spin head. The ste... | 08/09/2005 |
| 6923401 | Method for unwinding elastomeric yarn from coiled packages A method for unwinding tacky elastomeric yarn from one or multiple coiled yarn packages includes the steps of (a) removing tubular cores from each yarn package to expose the beginning end of the yarn strand at the inner diameter of the yarn package; (b) forming a te... | 08/02/2005 |
| 6916896 | High productivity spandex fiber process and product Commercially acceptable spandex can be prepared with greater efficiency, improved consistency and at lower costs from a high-solids content polyurethaneurea polymer solution. The polyurethaneurea is prepared using a combination of 4,4′-MDI and 2,4′-MDI, and an a... | 07/12/2005 |
| 6884505 | Fabric incorporating polymer filaments having profiled cross-section The present invention is directed to a multi-filament yarn formed at least in part from filaments having cross-sectional zig-zag or double “W” shape with a 180 degree axis of symmetry. The filaments have a denier per filament generally in the range of about 0.1 ... | 04/26/2005 |
| 6880212 | Air-jet method for producing composite elastic yarns A continuous method for producing composite elastic yarns at speeds up to 700 m/min by (a) stretching (drafting) an elastomeric yarn (e.g., spandex) by 2.0× (100%) to 10.5× (950%) while heating (max. heating temperature 220° C.) in a single or double stage draft,... | 04/19/2005 |
| 6877197 | Process for treating a polyester bicomponent fiber The invention provides a process for treating a polyester fiber comprising the steps of providing a bicomponent fiber comprising poly(ethylene terephthalate) and poly(trimethylene terephthalate) which has been heat-treated at a first temperature and cooled to lower ... | 04/12/2005 |
| 6872695 | Method for in-eye cleaning of contact lens comprising polymeric beads An in-eye method for cleaning contact lenses comprises use of a cleaner using water-containing beads. The water-containing beads are prepared such that the bead size is smaller than the punctual opening. They are easily flushed from the ocular environment by normal ... | 03/29/2005 |
| 6868662 | Entangled bicomponent yarn and process to make the same The invention provides an entangled continuous filament yarn comprising at least two bicomponent filaments each comprising poly(trimethylene terephthalate) and poly(ethylene terephthalate), wherein the entangled yarn has a node frequency of about 40 to 50 nodes/m, a... | 03/22/2005 |
| 6866930 | Polyamide chain extension process and functionalized polyamides produced thereby A process for increasing the relative viscosity (RV) of a reactant polyamide and to products produced by the process. The process includes contacting the reactant polyamide and a chain extender compound, forming the product, and quenching the product when its RV is ... | 03/15/2005 |
| 6848151 | Air-jet method for producing composite elastic yarns A continuous method for producing composite elastic yarns at speeds up to 700 m/min by (a) stretching (drafting) an elastomeric yarn (e.g., spandex) by 2.0×(100%) to 10.5×(950%) while heating (max. heating temperature 220° C.) in a single or double stage draft, (... | 02/01/2005 |
| 6846866 | Spandex containing a mixture of phenolic The invention provides polyurethane containing a) a first additive comprising at least one mono-hindered hydroxyphenyl group and having a molecular weight of at least about 300 Daltons; b) a second additive selecte... | 01/25/2005 |
| 6805836 | Prevention of preservative uptake into biomaterials A method for inhibiting the ability of a biomaterial to sorb cationic antimicrobials comprising treating the surface of said biomaterial with a cationic polysaccharide. ... | 10/19/2004 |
| 6787131 | Method for enhancing integrity of epithelium using retinoic acid A method for improving the integrity of the corneal epithelium by introducing into the eye an effective amount of a ophthalmically compatible retinoid sufficient to enhance the integrity of the corneal epithelium. ... | 09/07/2004 |
| 6782923 | Weft-stretch woven fabric with high recovery A woven fabric comprising warp fibers and a weft is provided. The weft may be of pick-and-pick or co-insertion constructions. The weft includes a spun staple yarn and a polyester bicomponent filament. The polyester bicomponent filament includes poly(ethylene terepht... | 08/31/2004 |
| 6780205 | Vat acid dyeing of textile fibers A process for dyeing certain textile fibers, utilizing vat acid dyeing and specific additional (second) reducing agents such as α-hydroxyalkylsulfinic acids, their salts and 1,2,4-trithiolane, resulting in excellent depth of shade and washfastness, is provided.... | 08/24/2004 |
| 6776014 | Method to make circular-knit elastic fabric comprising spandex and hard yarns Circular-knit, elastic, single-knit jersey fabric, of spun and/or continuous filament hard yarns with bare spandex plated in every course, has a cover factor in the range of 1.3 to 1.9, a basis weight from 140 to 240 g/m2, an elongation of 60% or more and... | 08/17/2004 |
| 6736453 | Stretch slipcovers Upholstery stretch slipcovers are constructed from fabric having sufficient elastic recovery force so that the covers require no additional fabric to hold the slipcovers in place or to maintain a substantial absence of wrinkles in the slipcovers. The stretch slipcov... | 05/18/2004 |
| 6720403 | Polyurethaneurea and spandex comprising same Spandex having good whiteness retention, high heat-set efficiency, and percent set is made from comprises amide soluble polyurethaneurea polymers prepared by reacting polyether which comprises the reaction product of a polymeric glycols with ortho-substituted diisoc... | 04/13/2004 |
| 6720049 | Thin-walled polyurethane articles This invention relates to low-tack thin-walled articles comprising a polyurethane elastomer, for example surgical gloves, clean-room gloves, condoms, and the like. More particularly, the invention relates to such elastomeric articles containing specific amounts of m... | 04/13/2004 |
| 6716523 | Spandex and it's preparation with dispersant slurry A dispersant slurry for making spandex, based on phosphated block poly(alkylsiloxane)-poly(alkyleneether) alcohol or aromatic- or alkylaromatic-terminated phosphated poly(alkyleneether) alcohol dispersants, is provided. ... | 04/06/2004 |
| 6711936 | Sock testing method and apparatus for performing the same The present invention generally relates to both an apparatus, a test form and a method for evaluating sock-drop. More particularly, the present invention relates to an apparatus able to simulate particular forces exerted by human movements, a test form resembling a ... | 03/30/2004 |
| 6702983 | Low ionic strength method and composition for reducing bacterial attachment to biomaterials A method is disclosed for inhibiting adhesion of bacteria to the surface of a biomedical device comprising contacting the surface of said biomedical device with a cationic polysaccharide in aqueous solution having an ionic strength of from about 0.01 to a... | 03/09/2004 |
