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| Number | Title | Issue Date |
| 5084306 | Process for coating fabrics with fluorochemicals A process for coating carpets with fluorochemical emulsions is disclosed. The process comprises treating the fabric with a fluorochemical emulsion then heating, rinsing and, finally, drying the treated fabric. The process is characterized in that the emul... | 01/28/1992 |
| 5079063 | Solution-spun antiflea fibers Fibers having a substance incorporated therein to kill fleas are described. Fabrics (e.g. carpet and socks) containing these fibers are useful for ridding households and household pets of fleas.... | 01/07/1992 |
| 5073453 | High tenacity nylon yarn A process for producing high tenacity nylon yarn is described. The process comprises a melt-spinning step for producing an as-spun yarn, a solid state polymerization step for increasing the Mw and changing the crystalline characteristics of the nylon poly... | 12/17/1991 |
| 5058371 | Continuous filament yarn for trackless carpet Yarn suitable for use in making cut pile trackless carpet is disclosed. The yarn is composed of two continuous filament singles yarn cabled together with from 3.5 to 5.0 turns per inch (2.54 cm) of twist. Each singles yarn is tangled and contains substant... | 10/22/1991 |
| 5030246 | Continuous processes for acid dyeing of stain resistant nylon carpets Carpets comprising nylon fibers which have been coated with stainblocker and subjected to dry heatsetting conditions (e.g. 200° C.) are continuously dyed with acid dye liquor to deep shades of color by adding certain slats (e.g. ammonium sulfate) to the ... | 07/09/1991 |
| 5028471 | Antiflea fibers Melt-spun filaments having a substance incorporated therein to kill fleas and staple length fibers made therefrom are described. Carpets containing these fibers are useful for ridding households and household pets of fleas.... | 07/02/1991 |
| 5017116 | Spinning pack for wet spinning bicomponent filaments A spinning pack for wet spinning a tow having at least 20,000 bicomponent acrylic filaments is described. The pack includes a plurality of specially designed plates arranged so as to provide filaments having a substantially uniform distribution of the com... | 05/21/1991 |
| 4975325 | Self crimpable nylon 66 carpet yarn A melt-spinning process for producing self-crimping, nylon 66 carpet yarn at spinning speeds of, for example 4000 meters per minute is provided. The process utilizes polymer having a relative viscosity (RV) of at least 50 and containing a sufficient amoun... | 12/04/1990 |
| 4913869 | Wet-spinning processes for producing acrylic filaments An improvement in the conventional wet-spinning process for producing acrylic fibers increases the spinning performance and/or productivity of the process and comprises imparting a plurality of stretches to the fibers as they are being dried on the heat r... | 04/03/1990 |
| 4901517 | Apparatus for the drafting section of ring spinning frames An improved apparatus for the drafting section of ring spinning frames is disclosed. The apparatus includes a front cot roll apron which permits the apparatus to be operated at higher than normal draft ratios without sacrificing spinning performance or pr... | 02/20/1990 |
| 4892558 | Process for dyeing stain resistant nylon carpets A process for dyeing carpets composed of nylon fibers coated with stain blocker whereby any loss of stain resistance occurring during processing of the fibers is recovered. The process comprises adding a small amount of stain blocker to the dye liquor use... | 01/09/1990 |
| 4882222 | Carpet fiber blends A blend of conventional carpet fibers (e.g. nylon fibers) and high shrinkage fibers (e.g. acrylic fibers) is described. Saxony carpet made from the blend has better appearance retention characteristics than corresponding saxony carpet made from the conven... | 11/21/1989 |
| 4879180 | Stain-resistant nylon fibers Nylon carpet fibers are provided which resist staining by acid dye colorants at room temperature, yet are dyeable at elevated temperatures with acid dyes without losing their resistance to acid dye colorants at room temperature. The fibers are characteriz... | 11/07/1989 |
| 4873142 | Acrylic fibers having superior abrasion/fatigue resistance Acrylic fibers are provided having superior abrasion resistance and flex fatigue properties as well as other properties desirable for end use applications in fabrics where wear performance properties are important, such as socks. The fibers may be made by... | 10/10/1989 |
| 4851283 | Headliners having improved sound-absorbing characteristics Thermoformable laminates, suitable for use as automobile headliners, comprising a layer of non-woven fabric (acoustical pad bonded to one side of a foamed polymer sheet are disclosed. The non-woven fabric comprises a certain blend of staple fibers which p... | 07/25/1989 |
| 4851466 | Process for preparing heat and light stabilized Nylon 66 polymer Nylon 66 polymer is stabilized against heat and light during its preparation by conducting the polymerization in the presence of certain copper complexes, such as cupric amminohydroxide, and KBr and/or KI. Less metallic copper is formed during polymerizat... | 07/25/1989 |
| 4839211 | Saxony carpet having improved appearance retention Saxony carpet made from a blend of conventional carpet fibers (e.g. nylon fibers) and high shrinkage fibers (e.g. acrylic fibers) has better appearance retention characteristics than corresponding saxony carpet made from the conventional carpet fibers.... | 06/13/1989 |
| 4839212 | Stain resistant nylon carpets Nylon carpet fibers are provided which resist staining by acid dye colorants at room temperature, yet are dyeable at elevated temperatures with acid dyes without losing their resistance to acid dye colorants at room temperature. The fibers are characteriz... | 06/13/1989 |
| 4828778 | Method for continuous injection molding A method for continuous injection molding of thermoplastic materiall into three-dimensional sheets having a projection extending from a substantially uniform backing layer. An extrusion die having a face matching the surface of a rotatable mold drum with ... | 05/09/1989 |
| 4816550 | Polyamide feed yarn for air-jet texturing Improved feed yarns for air-jet texturing are provided by using high molecular weight polyamide polymer spun through non-round capillaries at high spinning speeds to give filament modification ratios greater than 1.5.... | 03/28/1989 |
| 4740339 | Process for producing conjugate filaments Polyamide conjugate filaments are prepared by a spin-stretch process wherein two nylon 66 polymers having different relative viscosities are melt spun at a spinning speed of at least 2286 mpm to form filaments in which the polymers are arranged in a side-... | 04/26/1988 |
| 4738407 | Manipulating large sections of artificial turf A method of removably covering a smooth, rigid surface such as a floor, with a large section of heavy duty, artificial turf which involves pulling it across the surface while supported on a pneumatic cushion to minimize frictional drag and then relieving ... | 04/19/1988 |
| 4720943 | Cord structure Cord useful in the reinforcement of pneumatic tires is provided that is less expensive than conventional cord used for that purpose. A typical cord consists of a core composed of two continuous filament nylon yarns having little or no twist, laid side-by-... | 01/26/1988 |
| 4701518 | Antimicrobial nylon prepared in water with zinc compound and phosphorus compound Antimicrobial activity is imparted to nylon during its preparation by adding to the nylon-forming monomer(s), a zinc compound (e.g. zinc ammonium carbonate) and a phosphorus compound (e.g. benzene phosphinic acid). The compounds are added in amounts suffi... | 10/20/1987 |
| 4680212 | Stain resistant nylon fibers Nylon carpet fibers are provided which resist staining by acid dye colorants at room temperature, yet are dyeable at elevated temperatures with acid dyes without losing their resistance to acid dye colorants at room temperature. The fibers are characteriz... | 07/14/1987 |
| 4645798 | Basic dyeable acrylic fiber Acrylic fibers having good basic dyeability characteristics are provided. The fibers are composed of an acrylic polymer having a sulfonate-containing nonacrylic polymer, such as a partially sulfonated polystyrene, dispersed therein.... | 02/24/1987 |
| 4643930 | Novel carpets with yarns coated with fluorocarbon and adhesive containing fluorocarbon Carpets having stain resistant pile fibers and a backing that is substantially impervious to water are described. The imperviousness of the backing prevents water from passing through the carpet and into the underpad where its presence causes rotting and ... | 02/17/1987 |
| 4619803 | Self-texturing nylon yarn spinning process A self-crimping filament is formed in high-speed spinning by joining hot and cool molten substances of a single polymer substantially at or preferably below the face of the spinneret. This increases the bulk of a yarn containing such filaments.... | 10/28/1986 |
| 4619853 | Easy-clean carpets which are stain resistant and water impervious Carpets having a primary backing and a pile consisting essentially of polyamide fibers stitched into the primary backing are described. The fibers are characterized in being stain resistant and the backing is characterized in being impervious to water. Th... | 10/28/1986 |
| 4610059 | Warp monitoring and beaming process In a warping process, the yarns are overfed into an accumulator comprising an individual tension detector for each yarn. The overfeed reduces the tension and thus the frictional drag as the yarns pass in a partial wrap around their tension detectors, perm... | 09/09/1986 |
| 4604863 | Pigtail guide for staple spinning A specially designed pigtail balloon guide for use with ring spinning frames is provided. The guide improves the performance of such frames with respect to sliver breaks and/or sliver throughput. The guide has a single-looped coil through which the sliver... | 08/12/1986 |
| 4601949 | Conjugate filaments and process for producing same Polyamide conjugate filaments are prepared by a spinstretch process wherein two polyamides (e.g. two nylon 66 polymers) having different terminal velocity distances are melt spun at a spinning speed of at least 1829 mpm to form filaments in which the poly... | 07/22/1986 |
| 4592940 | Stain-resistant nylon carpets impregnated with condensation product of formaldehyde with mixture of diphenolsulfone and phenolsulfonic acid Nylon carpets are rendered resistant to staining normally caused by artificial colorants such as Food, Drug and Cosmetic Red Dye No. 40 by immersing the carpets in a boiling aqueous solution of a selected phenol-formaldehyde condensation product at a pH o... | 06/03/1986 |
| 4579762 | Stain resistant carpet with impervious backing Carpets having stain resistant pile fibers and a backing that is substantially impervious to water are described. The impervious backing prevents water from passing through the carpet and into the underpad where its presence causes rotting and mildewing o... | 04/01/1986 |
| 4534161 | Ring spinning processes for converting sliver to carpet yarn An improvement in the conventional process for converting sliver to carpet yarn on a ring spinning frame is described. The improvement increases the productivity of the frame and at the same time provides bulkier yarn. The improvement is achieved by utili... | 08/13/1985 |
| 4507324 | Antisoiling nylon carpet yarns Polyamide carpet fibers coated with a certain class of fluorine-containing addition polymer are described. The coating is chemically bonded to the fiber surface through amide linkages (--NHCO--) of the polyamide. The coating imparts antisoiling properties... | 03/26/1985 |
| 4501591 | Process for conveniently providing stain-resistant polyamide carpets The invention relates to an improvement in certain processes for continuously dyeing polyamide carpets whereby stain resistance is imparted to the carpets during the dyeing process. The improvement involves adding an alkali metal silicate (e.g. sodium met... | 02/26/1985 |
| 4501882 | Batch process for preparing 6TA/6IA copolymers high in 6TA In the batch melt polymerization process for preparing 6TA/6IA copolymer having a high 6TA content, i.e., greater than 45%, successive batches of copolymer can be prepared without cleaning out the autoclave between successive batches by conducting the pre... | 02/26/1985 |
| 4472481 | Carpet fiber blends A blend of crimped trilobal carpet fibers, each having a modification ratio and denier within specified ranges are provided. Carpets made from the fiber blend have an excellent overall balance of firmness, cover and luster.... | 09/18/1984 |
| 4457883 | Nylon spin-texture process In producing nylon yarns having latent crimp by the process disclosed in U.S. Pat. No. 4,202,854, the polymer throughput (i.e. extrusion rate) is increased without sacrificing the amount of uniformity of the bulk resulting from development of the latent c... | 07/03/1984 |
