Cord, Thread, Yarn, Or Wire Patents (Class 427/175)
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Patent number: 5376412Abstract: The process for manufacturing strings according to the invention is of the type comprising a step in which a thread is produced from fibres, a step in which the thread is impregnated with a resin, a step in which the impregnated thread is coated with a synthetic material to provide it with a sheath, a step in which the synthetic material is caused to be completely cross-linked, and a step in which the thickness of the sheath is adjusted. It is characterized by use of discontinuous fibres that are subjected to textile operations of intersecting and drawing-twisting. The process according to the invention makes it possible to produce strings designed to be subjected to tensile stress, in particular strings for rackets and musical instruments.Type: GrantFiled: November 26, 1991Date of Patent: December 27, 1994Assignee: Regnault Reynolds S.A.Inventors: Michel M. Najotte, Michel O. Guyot, Guy J. Delcroix
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Patent number: 5352483Abstract: The present invention discloses preadhered, melt-spun, spin-drawn polyester filaments having improved adhesive properties towards rubber and processes for making the same. The process for making these filaments include the following steps:(a) spin-drawing polyester filaments at an up-take speed ranging between about 2,000 and about 6,000 meters per minute by using an integrated spin-drawing process; and(b) immediately after spin-drawing, applying to the polyester filament a composition which has simultaneously about 0.05 to about 0.5% by weight of a polyepoxide and about 5 to about 140 ppm of a tertiary amine with linear functional groups.The resulting polyester filament has a minimum adherence towards rubber in the Strip-test of about 16.0 to about 21.5 daN.Type: GrantFiled: October 8, 1991Date of Patent: October 4, 1994Assignee: Viscosuisse S.A.Inventors: Remy Humbrecht, Peter Beutler, Armin Mueller
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Patent number: 5342678Abstract: A method of woven webs comprising tire cord splicing headers or tabbies can be stabilized against lateral (weft) distortion without the need for temples, by incorporating reinforcing weft strands of a stiff resilient yarn, i.e. a composite yarn comprising a stiff resilient core mantled with fibers, i.e. staple fibers applied by a core spinning technique.Type: GrantFiled: October 26, 1992Date of Patent: August 30, 1994Inventor: George A. Ingus
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Patent number: 5340609Abstract: Air is blown into filter tow during or immediately after the application of plasticizer; this foams and distributes the plasticizer in the tow. Air may be delivered from a porous plate closely adjacent to the path of the tow or from nozzles in an air injecting unit. Alternatively air may be used to foam plasticizer at a location remote from the tow and foamed plasticizer subsequently conveyed to and into the tow by a roller.Type: GrantFiled: March 16, 1990Date of Patent: August 23, 1994Assignee: Molins plcInventors: Hugh M. Arthur, Francis A. M. Labbe
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Patent number: 5318630Abstract: A wire tensioning device having a guide for taking up an advancing wire having slack and a brake for applying a braking force to the guides. In a wire insulating system, a wire from a supply reel or spool is passed to a take-up reel or spool, through intervening components, which accumulate, tension and apply insulation to the advancing wire. The wire is first passed from the supply reel to an accumulating device in the form of a vertical accumulator or a flipper payout. From there it is passed through the device of the present invention having a plurality of rotatable sheaves or pulleys about which the advancing wire is trained. A braking force is applied to one of the sheaves by an air brake to apply a tensioning force. From the tensioning device, the wire is fed through an insulation-applying crosshead device and then on to a take-up reel or spool.Type: GrantFiled: December 14, 1992Date of Patent: June 7, 1994Assignee: Southwire CompanyInventors: Mickey E. Akin, Stephen C. Bohannon, Darrell L. Harrison, Michael L. McCloud
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Patent number: 5277928Abstract: An apparatus and method for controlling yarn coatings such as sizing are provided which includes nuclear radiation detectors which measure the attenuated radiation through processed yarn. Before and after radiation measurements are signaled to a computer which is programmed to generate a signal which controls squeeze rollers that adjust, according to specific size requirements. A second embodiment of the invention is provided for processing tire cord webs and utilizes digital line scan cameras in conjunction with the radiation detector sensors. Line scan cameras provide an opacity measure to determine yarn count and maintain an accurate density measurement even as lateral shifts in the web during processing occur.Type: GrantFiled: July 5, 1991Date of Patent: January 11, 1994Inventor: John A. Strandberg
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Patent number: 5246735Abstract: An aromatic polyamide multifilament yarn having a high bonding property to a rubber material and a high resistance to fraying of individual filaments, is produced by impregnating an aromatic polyamide multifilament yarn with a treating liquid comprising a first liquid rubber component (A) comprising at least one rubber compound provided with terminal hydroxyl or epoxy groups and having a molecular weight of 500 to 10,000, a second liquid rubber component (B) comprising at least one rubber compound provided with terminal isocyanate groups and having a molecular weight of 500 to 10,000, and an additive selected from antioxidants, antiaging agents, and epoxy compounds; heat treating the impregnated multifilament yarn at 100.degree. to 260.degree. C. for 30 to 260 seconds; twisting the heat treated multifilament yarn at a twist coefficient K satisfying the relationship (I):1.ltoreq.K.ltoreq.5 (I)wherein K is defined by the equation (II):K=(T.times.D.sup.Type: GrantFiled: August 27, 1992Date of Patent: September 21, 1993Assignee: Teijin LimitedInventors: Tadahiko Takata, Masahiro Yamaguchi
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Patent number: 5196100Abstract: In order to coat with a uniform metal deposit the fibres of slivers to be used in the production of composite materials with a metallic or non-metallic matrix, it is proposed to use a spread fibre sliver (30) wound onto a feed spool (28) with an interpolated sheet (32). In order to avoid the deformation of the spread sliver, the latter is unwound by pulling on the interpolated sheet by means of an interpolated sheet receiving spool (34) driven by a motor (M1). Thus, the sliver travels by gravity in front of metallization means, such as rotary magnetron cathodes (40a, 40b). It is then rewound, together with a second interpolated sheet (46) onto a spool (42) driven by a motor (M2) via a brake (43) having a very limited torque.Type: GrantFiled: September 19, 1991Date of Patent: March 23, 1993Assignee: Aerospatiale Societe Nationale IndustrielleInventors: Gerard Goffetre, Pierre Renard
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Patent number: 5096645Abstract: Extruded thermoplastic members, particularly structural members, are reinforced by longitudinally extending pre-stressed elements, such as filaments or matting. The elements, while under tension, are drawn into an extrusion crosshead die forming the thermoplasatic member. The elements are fully imbedded within the thermoplastic material while under tension and curing of the thermoplastic material, and final curing of the tensioned reinforcing elements, if a thermosetting resin impregnated element is used, occurs while the elements are under tension, the material of the member and the elements intimately bond and the tension forces within the elements reinforce the member at the desired locations. The forming of the reinforced member is a continuous operation.Type: GrantFiled: October 9, 1990Date of Patent: March 17, 1992Assignee: Plastigage CorporationInventor: Roy G. Fink
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Patent number: 5075136Abstract: A process for the application of a thin crystalline polypropylene coating to a surface which employs partially crystalline polypropylene particles which comprise zones of amorphous polypropylene containing entrapped moderate solvent. When heated particles flow and coalesce better than conventional polypropylene particles and so allow thinner coatings to be obtained. Also articles to which the coatings have been applied.Type: GrantFiled: December 22, 1989Date of Patent: December 24, 1991Assignee: Imperial Chemical Industries PLCInventors: Eric Nield, Daljit K. Suemul
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Patent number: 5049407Abstract: A process for producing coated glass yarns which comprises drawing a plurality of fibers formed from strands of molten glass, applying to the strands a sizing coating comprising at least a monounsaturated or polyunsaturated oligomer and a photostarter composition such as a photoinitiator compound, a photosensitizer compound or a mixture thereof and optionally an organic solvent and an additive composition comprising at least one of a wetting agent, an adhesion promoting agent, an antishrinking agent and a coupling agent, gathering the coated strands into a yarn and irradiating the coated yarn with a source of actinic radiation.Type: GrantFiled: February 17, 1989Date of Patent: September 17, 1991Assignee: Vetrotex Saint-GobainInventors: Barbara Soszka, Jacques Mahler, Eric Augier
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Patent number: 4994303Abstract: A method of producing a low cost impregnated and coated fiber useful in forming pump, valve, expansion joint, hydraulic cylinder and similar packings capable of resisting high caustic concentrations is provided. In accordance with this method a relatively low cost yarn, such as rayon, is simultaneously subjected to a spreading operation and passed through a highly alkaline colloidal tetrafluoroethylene (TFE) solution. As the yarn fibers are spread from a fiber bundle to a flat ribbon-like array of spaced parallel fibers, the fibers swell or "balloon," thus allowing the TFE to completely penetrate the interior of each fiber. A subsequent coating step insures that the exterior of each fiber is completely coated with the TFE solution. Fibers produced according to the present process are characterized by substantially lower cost than available materials, are completely caustic resistant at a pH approaching or exceeding 14, and have a long, useful service life in a variety of different environments.Type: GrantFiled: March 21, 1988Date of Patent: February 19, 1991Assignee: Garlock, Inc.Inventor: Richard W. Calkins
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Patent number: 4961972Abstract: A process for producing a liner material characterized by dipping a core in the form of a monofilament or multifilament into a vinyl chloride resin sol composition having a thermochromic particulate material incorporated therein, the thermochromic particulate material being prepared by enclosing with the high polymer compound an electron-donating chromogenic substance, an electron-accepting substance for the chromogenic substance and a solvent having a boiling point of at least 150.degree. C. and selected from the group consisting of alcohols, amides, esters and azomethines and further covering the resulting product with a different high polymer compound; withdrawing the core from the sol composition; and heating the core to gel the sol composition and cover the core with the gelled composition.Type: GrantFiled: February 25, 1987Date of Patent: October 9, 1990Assignee: Matsui Shikiso Chemical Co., Ltd.Inventors: Goro Shimizu, Masayasu Kamada, Yoshimi Hayashi
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Patent number: 4944821Abstract: Nylon cords having a yarn strength of not less than 12 g/d are subjected to a stretch heating treatment under specified conditions before the dipping and then dipped in a dipping solution having a particular composition, whereby the strength and adhesion force of the resulting dipped cords are considerably improved for use in large size tires.Type: GrantFiled: December 15, 1988Date of Patent: July 31, 1990Assignee: Bridgestone CorporationInventors: Tomohisa Nishikawa, Kazuo Oshima
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Patent number: 4919860Abstract: The invention relates to a process for making porous carbon membranes and membranes which can made by this process. As starting material, a porous membrane from an acrylonitril-polymer is used. The starting material is pretreated with a hydrazine solution, followed by preoxidation and carbonization. The process enables carbon membranes to be made with selectively adjusted pore sizes and tight pore size distribution. The pore sizes can lie in the ultrafiltration or microfiltration range. The membranes are suitable for separation processes, in which chemically aggressive media are used and for high-temperature processes. They can be used wherever electrical conductivity of the membranes is required.Type: GrantFiled: July 13, 1988Date of Patent: April 24, 1990Assignee: Akzo NVInventors: Erich Schindler, Franz Maier
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Patent number: 4911927Abstract: A method and apparatus for the manufacture of various dental flosses containing chemotherapeutic preparations which are releasable during flossing.Type: GrantFiled: November 14, 1988Date of Patent: March 27, 1990Inventors: Ira D. Hill, Robert D. White
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Patent number: 4863761Abstract: The present invention is a process for applying a semi-permeable coating on a hollow fiber substrate. The hollow fiber substrate is continuously passed through a polymeric coating solution and withdrawn from the solution through a coating die to form a uniform polymeric solution coating on the outer surface of the hollow fiber. The coated hollow fiber is dried by passing it through a convective flow tunnel in which the rate of drying is controlled both by a pre-determined temperature profile in the tunnel and by a controlled air flow rate through the tunnel. The resultant material is a semi-permeable, coated composite hollow fiber membrane which can be used in gas and/or liquid separations.Type: GrantFiled: February 23, 1988Date of Patent: September 5, 1989Assignee: Air Products and Chemicals, Inc.Inventor: Pushpinder S. Puri
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Patent number: 4842793Abstract: Thread bundles which are transported from top to bottom, can be wetted with liquids by means of a device consisting of a system releasing the liquid, conduits and a storage container as well as suitable transporting means for the liquid, whereby the system releasing the liquid has at least two slotted nozzles positioned one above the other and opposite each other, having a horizontal slot and whereby rods are attached at the slot ends which, seen from above, form an angle with the slot of from 100 to 170.degree., preferably from 115 to 160.degree..Type: GrantFiled: September 9, 1987Date of Patent: June 27, 1989Assignee: Bayer AktiengesellschaftInventors: Ulrich Reinehr, Rolf-Burkhard Hirsch, Joachim Dross, Hermann-Josef Jungverdorben
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Patent number: 4756932Abstract: The present invention is a process for applying a highly permeable coating on a hollow fiber substrate. The hollow fiber substrate is continuously passed through a polymeric coating solution and withdrawn from the solution through a coating die to form a uniform polymeric solution coating on the outer surface of the hollow fiber. A portion of the solvent from the coating is allowed to evaporate thereby forming a thin, dense surface layer after which the remaining solvent from the coating layer is leached out. The resultant material is a highly permeable, coated composite hollow fiber membrane which can be used in gas and/or liquid separations.Type: GrantFiled: June 11, 1987Date of Patent: July 12, 1988Assignee: Air Products and Chemicals, Inc.Inventor: Pushpinder S. Puri
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Patent number: 4751143Abstract: The aging period for chemically stabilized, adhesive activated polyester material can be reduced by contacting the material before it is substantially drawn or stretched with a composition containing a defined epoxide compound catalyzed with ions of at least one of potassium, cesium, rubidium or ammonium at a pH of between about 7.5 to about 13.0. The composition preferably also contains chloride, bromide or iodide ions which stabilizes the pH and/or an amine which improves adhesion to rubber.Type: GrantFiled: September 20, 1984Date of Patent: June 14, 1988Assignee: Celanese CorporationInventors: John D. Gibbon, Norman S. Anderson
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Patent number: 4745002Abstract: Method of making copper clad conductor by impinging of copper particles upon a heated steel wire to cause adhesion of the particles to the wire, by coalescence, building up the particles to form a coating and then drawing the coated wire to the required diameter. The coated wire may be heat treated to cause flow of copper to improve the surface finish before the drawing process. The copper particles may be directed at the wire by a spraying technique. Alternatively, the wire is passed over a fluidized bed of the particles and through a cloud of particles thrown up by the bed.Type: GrantFiled: November 27, 1985Date of Patent: May 17, 1988Assignee: Northern Telecom LimitedInventors: Gavriel L. Vexler, B. Paul S. Cheema
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Patent number: 4712290Abstract: Yarn to be utilized for the manufacture of pre-softened fabric is stiffened without the use of binding agents. Only corn starch and low temperature wax are utilized as stiffeners. Fabric manufactured from such yarn is then subjected to a finishing process, in which enzymes capable of breaking down the corn starch and a wetter/rewetter are added to the fabric itself. These enzymes are activated during a subsequent soaking in water only, followed by agitation, whereby stiffness may be removed from the fabric in approximately 5 minutes. In accordance with another aspect of the invention, softeners are also added to the fabric during the finishing process. The softeners are also released during the subsequent garment washing operation. Preferably, the softeners include at least reactive silicon. This serves the additional purpose of lubricating sewing needles and cutting knives during the garment manufacturing process.Type: GrantFiled: July 28, 1986Date of Patent: December 15, 1987Assignee: Avondale MillsInventor: James N. Lindsey
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Patent number: 4663200Abstract: The present invention provides a method of producing a softening agent in which a silicone resin containing particular functional groups, a particular emulsifier and a particular antistatic agent are dispersed stably in an aqueous medium in a particular ratio, and which can give durable slippery touch, softness and processability at the same time to fibers after treatment. The invention also provides an industrially advantageous method of producing acrylic fibers which have animal hair-like touch and processability by one-step treatment, by fixing said softening agent to the acrylic fibers.Type: GrantFiled: October 22, 1985Date of Patent: May 5, 1987Assignee: Japan Exlan Company LimitedInventors: Katsuaki Nomura, Hideyuki Tsurumi
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Patent number: 4626306Abstract: The procedure for manufacturing thin profiled strips, made up of continuous unidirectional fibers embedded in a thermoplastic resin, consists of impregnating a lap (1) of parallel fibers with resin particles, achieving resin fusion, forming the profiled strip and of cooling the latter.The lap (1) of fibers is dipped into a bath (26) of resin particles, mechanically impregnated with the particles, by feeding it for instance around rollers (15, 16, 17) immersed in the resin particles and the excess particles are removed to obtain the desired resin to fiber content ratio.Use of profiled strips obtained, in particular for outwardly reinforcing tubes or for producing moulded items.Type: GrantFiled: January 16, 1986Date of Patent: December 2, 1986Assignees: Spie-Batignolles, CoflexipInventors: Gilbert Chabrier, Guy Moine, Roger Maurion, Rene Szabo
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Patent number: 4554179Abstract: A method and apparatus are disclosed for the color coding of optical fibers (1). The optical fibers (1) are drawn through color chambers (6) in which they are continuously colored. Thereafter they are provided with distinctly colored ring-shaped markings by means of swinging color jets. After passage through a drying path (7), the optical fibers (1) are wound onto take-up reels (13).Type: GrantFiled: June 28, 1984Date of Patent: November 19, 1985Assignee: Gesellschaft mit beschrankter Haftung Kabelmetal ElectroInventor: Harald Roderburg
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Patent number: 4544579Abstract: Process and apparatus for applying finish to yarn and confining finish are disclosed. The apparatus for applying finish features an applicator face which comprises the delivery area of a finish supply duct and the surface area of two primary arcs, one located on either side of the duct and curving in the general direction of yarn travel. The central angle subtended by each of the primary arcs ranges from about 2 to 9 degrees. The edge of each of the primary arcs remote from the duct terminates in a secondary arc which subtends a central angle of 30 to 60 degrees and with a radius length shorter than that of either primary arc. The apparatus for confining finish comprises a housing, plate and baffle(s). The housing substantially encloses a finish application device and has openings for yarn entrance and exit and for take-off of excess finish. The plate is mounted beneath the finish application device. The baffle(s) are disposed between the plate and the take-off opening.Type: GrantFiled: May 24, 1983Date of Patent: October 1, 1985Assignee: Allied CorporationInventors: Phillip L. Mullins, James G. Neal, Jeffrey T. Perkins
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Patent number: 4532154Abstract: A multifilament yarn of an aromatic polyamide, in particular poly-p-phenylene terephthalamide, having a tenacity of at least 15 cN/dtex and an initial modulus of at least 400 cN/dtex is provided with a water-soluble size, the filaments of the yarn having a cohesion corresponding to a Manra number not higher than 40. The yarn is made by subjecting a non-sized yarn having a moisture content which is lower than its equilibrium moisture content, while under a tension of at most 0.25 cN/dtex, to a continuous wetting treatment with an aqueous solution of a size and subsequently winding the treated yarn into a yarn package. The yarn package contains a single continuous length of the sized yarn. The sized yarn is suitable as warp and weft yarn in the weaving industry.Type: GrantFiled: April 12, 1984Date of Patent: July 30, 1985Assignee: Akzo NVInventor: Evert Harteman
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Patent number: 4530855Abstract: Resin evenly applied to the surface of rotatable drive roller applicator is worked into the fibers of a band of fibrous material one ply thick by fiber tension, without abrasion. Resin is pumped to the roller applicator by a piston and cylinder pump at a rate controlled by the rate of rotation of the applicator roller and thereby in accordance with the rate at which the fibrous band is pulled from the surface of the roller.Type: GrantFiled: June 15, 1983Date of Patent: July 23, 1985Assignee: Thiokol CorporationInventor: Dean Youngkeit
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Patent number: 4528214Abstract: A polymeric product having a fabric layer and method of making the same are provided, the fabric layer being provided with opposed sides and at least one polymeric part secured to the fabric layer. The fabric layer comprises a first substantially planar layer of threads disposed in superimposed relation with a second substantially planar layer of threads whereby the threads of the first layer are not woven with the threads of the second layer, the polymeric part effectively being the sole securement that secures the threads of the first layer to the threads of the second layer and thereby imparting its flexible characteristic to the securement between the threads of the first and second layers.Type: GrantFiled: April 9, 1984Date of Patent: July 9, 1985Assignee: Dayco CorporationInventors: Delmar D. Long, James D. Hill, Jr.
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Patent number: 4479979Abstract: Insufficient finish level on a yarn may be detected by monitoring the temperature of a stationary surface over which the yarn runs and observing a rise in temperature above that seen when a normal fixed level of finish is present on the yarn.Type: GrantFiled: December 19, 1983Date of Patent: October 30, 1984Assignee: E. I. Du Pont de Nemours and CompanyInventor: James M. Prober
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Patent number: 4474585Abstract: Conventional heat stretching and/or setting conditions for fabrics made of heat sensitive thermoplastic yarns such as polyester, and even special techniques advanced in prior patents, have been found in adequate to produce coated abrasives with sufficient elongation resistance for some very heavy duty service. A superior alternative is provided by encasing the yarns in the backing in a thermosetting adhesive and then curing it while mechanically restraining the yarns from shrinking, as they would under the temperature conditions employed for cure if no restraint were used. The method is also applicable to other types of yarn reinforced web materials for which a combination of elongation resistance and flexibility is needed.Type: GrantFiled: May 31, 1983Date of Patent: October 2, 1984Assignee: Norton CompanyInventor: David P. Gruber
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Patent number: 4438155Abstract: A method of fabricating composite metal wires such as aluminium clad steel wires is disclosed which comprises providing a core of hard metal with a cladding of soft metal by extrusion. In fabricating a composite metal wire by extrusion, a core is generally aligned, polished, cleaned or otherwise pretreated before entering an extruder so that a high and variable tension is imparted to the core. By avoiding such tension variation and maintaining the core under a constant low tension and by electrically heating the core before the core enters the extruder, a composite metal wire of improved quality is fabricated in a stable manner.Type: GrantFiled: July 10, 1981Date of Patent: March 20, 1984Assignee: Hitachi Cable Ltd.Inventors: Kazumichi Kawai, Yasuo Kaneko, Kelzo Abe, Hideo Matsuo, Yoshinori Kishi, Yasuhiko Miyake, Yoshihiro Matsuyama
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Patent number: 4427718Abstract: A method of encapsulating a cable strand formed of a plurality of bundled steel wires is carried out by forcing apart the wires of the strand with wooden wedges, and then filling the resulting gap solid with red lead paste. After this, the wedges are removed to permit the paste to coat and fill all voids between the strand wires. This operation is repeated at a plurality of circumferential positions on the strand. Then, the wedges can be driven in at an adjacent position up the strand. Next, the portion of the strand at which the red lead paste has been so applied is coated with the same paste. Finally, the cable is paint encapsulated by using a bath of red lead paint. This method is favorably carried out to protect the crotch of a suspension bridge main cable strand at a position near the strand shoe thereof.Type: GrantFiled: May 27, 1982Date of Patent: January 24, 1984Inventors: Patrick Heron, Timothy Hartnett, Adam Wright
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Patent number: 4388365Abstract: According to the present invention, a porous FRP sheet can be easily manufactured without need for the punching or drilling process which is required in conventional prior methods for manufacturing an FRP sheet. The FRP sheet manufactured by the present method has superior reinforcing characteristics, since the reinforcing fibers composing the FRP sheet are not cut but are retained in continuous condition.Type: GrantFiled: February 22, 1982Date of Patent: June 14, 1983Assignee: Hawegawa Chemical Industry Co., Ltd.Inventor: Shigekazu Hasegawa
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Patent number: 4356212Abstract: A method and apparatus for treating textile cord on a continuous basis where the cord is sequentially treated by application of aqueous solution passed through a squeeze roll station, passed through a pull roll station and then to a drying operation. The applied liquid is additionally removed from the cord by specially positioned and designed elastomeric squeeges located in the squeeze roll area and the pull roll area.Type: GrantFiled: April 20, 1981Date of Patent: October 26, 1982Assignee: The Goodyear Tire & Rubber CompanyInventor: Willie M. Stafford
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Patent number: 4300964Abstract: A tire cord dipping composition and a method of adhering textile materials to rubber, are disclosed, wherein an N-methylol group containing polymer is employed.Type: GrantFiled: October 22, 1979Date of Patent: November 17, 1981Assignee: American Cyanamid CompanyInventor: Ajit K. Chaudhuri
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Patent number: 4295871Abstract: Sizing compositions comprising a combination of several adhesive agents capable of being cross-linked, an acrylic polymer and a coupling agent, are used to treat glass fibers in order to provide improved plastic reinforcing fibers especially suited to use in sheet molding compounds whereby molded articles, particularly large pieces formed therefrom, will have improved reinforcement and surface characteristics.Type: GrantFiled: April 2, 1979Date of Patent: October 20, 1981Assignee: Saint-Gobain IndustriesInventors: Michel Droux, Gilbert Bocquet
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Patent number: 4233074Abstract: Provided is a method of preparing film base material consisting of biaxially oriented synthetic linear polyester which comprises stretching extruded synthetic polyester material in one direction and then coating on this material a copolymer in form of an aqueous latex of vinylidene chloride, a plasticising comonomer for the vinylidene chloride and optionally other comonomers together with 10 to 40 percent by weight of solids in the latex of at least one phosphoric acid derivative of the formula ##STR1## wherein M is hydrogen, ammonium or an alkali metal, R is methyl, ethyl or an ethylene oxide and/or propylene oxide units containing group, and R.sub.1 is hydrogen, methyl or ethyl, drying this coating and completing the orientation of the polyester film material.A photographic silver halide emulsion can be coated directly on this base without the need to apply any intermediate gelatin subbing layer.Type: GrantFiled: June 12, 1978Date of Patent: November 11, 1980Assignee: Ciba-Geigy AktiengesellschaftInventors: Geoffrey M. Dodwell, Norman E. Gambles
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Patent number: 4210700Abstract: An improved multifilament polyethylene terephthalate yarn is prepared by first applying to the yarn a liquid composition comprising hexadecyl stearate, refined coconut oil, ethoxylated tallow amine, ethoxylated lauryl alcohol, sodium salt of alkylarylsulfonate, dinonyl-sodium-sulfosuccinate, and a mineral oil, and then applying to the yarn a liquid composition which is an oil-in-water emulsion, the oil portion of which comprises coconut oil, polyoxyethylene hydrogenated castor oil, and phosphated polyoxyethylated tridecyl alcohol neutralized with potassium hydroxide. The yarn is preferably used in tire cords for the construction of pneumatic passenger tires and results in excellent adhesion of tire cord to rubber.Type: GrantFiled: September 15, 1978Date of Patent: July 1, 1980Assignee: Allied Chemical CorporationInventors: Robert M. Marshall, Kimon C. Dardoufas
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Patent number: 4173679Abstract: Fiber conditioning agent containing a reaction product of polyphosphoric acid and an oxalkylate of C.sub.8-18 alkyl- or alkenylcarboxylic acids with 1 to 22 ethylene oxide units and having a content of free polyethylene glycol of less than 2% by weight, the reaction product being present in acidic form or in the form of its alkali metal salts. These fiber conditioning agents are applied by conventional methods. They show good antistatic properties, are stable to heat and show good lubricating and sliding properties.Type: GrantFiled: December 20, 1977Date of Patent: November 6, 1979Assignee: Hoechst AktiengesellschaftInventors: Rolf Kleber, Winfried Ehrl
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Patent number: 4108781Abstract: In a process for producing polyethylene terephthalate yarn wherein a liquid finish is applied to the yarn, said process involving spinning and drawing steps, the improvement comprising first applying to the yarn prior to said drawing step a liquid finish composition consisting essentially of a polyalkylene glycol compound which is a mixed polyoxyethylated-polyoxypropylated monoether prepared in accordance with the equation: ##STR1## where R is an alkyl group having 1 to 8 carbon atoms, x and y are the number of moles of propylene oxide and ethylene oxide respectively and wherein ethylene oxide comprises 40 to 60 percent by weight of the combined total of ethylene oxide and propylene oxide and x+y has a value to produce a molecular weight of from 300 to 1,000, and then applying to said yarn after said drawing step a liquid finish composition consisting essentially of about 70 to 95 parts by weight of said mixed polyoxyethylated-polyoxypropylated monoether, about 5 to 30 parts by weight of a silane having the sType: GrantFiled: February 18, 1977Date of Patent: August 22, 1978Assignee: Allied Chemical CorporationInventors: Robert Moore Marshall, Kimon Constantine Dardoufas
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Patent number: 4080417Abstract: A process for producing carbon fibers by heat-treating an acrylonitrile fiber, containing or impreganted with an aminosiloxane, at a temperature of at least 150.degree. C for 0.1 second to 30 minutes so that the fiber contains 20 to 80 weight % undissolved matter upon immersing it in a 60% aqueous solution of sodium thiocyanate at 80.degree. C for 20 minutes, and then carbonizing the fiber, whereby the productivity throughout the whole process, including the step of producing the precursor fiber and the step of producing the carbon fiber, is increased and a carbon fiber having high tensile strength and high modulus of elasticity is obtained in an industrially advantageous manner.Type: GrantFiled: September 8, 1976Date of Patent: March 21, 1978Assignee: Japan Exlan Company LimitedInventors: Soichiro Kishimoto, Saburo Okazaki
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Patent number: 4073995Abstract: Acid modified vinyl acetate interpolymers containing 2-acrylamido-2-methylpropanesulfonic acid and their use as textile sizes. The interpolymers comprise from about 64.5 to about 95.8 weight percent of vinyl acetate, from about 4 to about 9.5 weight percent of acrylic acid, from about 0.2 to about 1 weight percent of 2-acrylamido-2-methylpropanesulfonic acid and from about 0 to about 25 weight percent of an ethylenically unsaturated monomer selected from the group consisting of alkyl acrylates, dialkyl maleates, and dialkyl fumarates. The interpolymers are prepared preferably by latex polymerization. The textile size solutions are formed by dissolving the interpolymers in dilute aqueous bases or in an organic solvent, and can be used advantageously in combination with polyvinyl alcohol and starches. The sizes demonstrate excellent adhesion to spun polyester and spun blends of polyester and natural fibers and are readily removed by aqueous scouring solvents.Type: GrantFiled: March 14, 1977Date of Patent: February 14, 1978Assignee: Monsanto CompanyInventors: James C. Baatz, Donald D. Donermeyer
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Patent number: 4066558Abstract: Clear, stable low viscosity yarn lubricating compositions consisting of 40-60 percent by weight of a low viscosity hydrophobic lubricant such as butyl stearate and hexadecyl stearate; 20-55 percent by weight of a hydrophilic lubricant such as polyoxyethylene(2-10)fatty alcohols, polyoxyethylene(5-20)nonyl phenols, and polyoxyethylene(5-20)tridecyl alcohol; 5-15 percent by weight of selected antistats such as polyoxyethylene(8)lauric acid, polyoxyethylene(20)tallow amine, and polyoxyethylene(23)coconut fatty acid esters of glycerine, and from 0.1-5 percent of a polar coupling agent such as water, low molecular weight alcohols and low molecular weight alcohol-ethers are especially suitable for direct application in the processing of polyester and polyamide yarns.Type: GrantFiled: February 11, 1974Date of Patent: January 3, 1978Assignee: ICI Americas Inc.Inventors: Barry M. Shay, Remo Santacecilia
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Patent number: 4054634Abstract: In a process for producing polyethylene terephthalate yarn, particularly for tire cords, wherein a liquid finish is applied to the yarn, said process involving spinning and drawing steps, the improvement comprising: (a) first applying to the yarn prior to said drawing step a liquid finish composition consisting essentially of a polyalkylene glycol compound which is a mixed polyoxyethylated-polyoxypropylated monoether prepared in accordance with the equation: ##STR1## where R is an alkyl group having 1 to 8 carbon atoms, x and y are the number of moles of propylene oxide and ethylene oxide respectively and wherein ethylene oxide comprises 40 to 60 percent by weight of the combined total of ethylene oxide and propylene oxide and x+y has a value to produce a molecular weight of from 300 to 1,000; and then (b) applying to said yarn after said drawing step a liquid finish composition consisting essentially of about 70 to 95 parts by weight of said mixed polyoxyethylated-polyoxypropylated monoether, about 5 to 30 pType: GrantFiled: September 29, 1975Date of Patent: October 18, 1977Assignee: Allied Chemical CorporationInventors: Robert Moore Marshall, Kimon Constantine Dardoufas
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Patent number: 4049766Abstract: In continuous spin-draw-winding of nylon 6 to produce yarn filaments of mixed beta-alpha crystalline morphology, the improvement wherein prior to drawing, a spin finish emulsion containing from about 0.1 to about 6% by weight of benzyl alcohol is applied to the filaments to enhance conversion of the beta uniformity of dye acceptance to the drawn filaments.Type: GrantFiled: January 12, 1976Date of Patent: September 20, 1977Assignee: Akzona IncorporatedInventors: Brewster B. Eskridge, Boyce M. Lyon, Eduard H. Boasson
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Patent number: 4019940Abstract: A high-strength parallel yarn rope comprises a series of multi-filament rope yarns which are bounded together in parallel relation along their lengths by a binder distributed only on the surfaces of the yarns to form a flexible rope core. The core is surrounded by a braided jacket, and a flexible layer of water-impervious material adhesively and mechanically bonds the core to the jacket.A method is also disclosed for manufacturing the rope.Type: GrantFiled: July 25, 1975Date of Patent: April 26, 1977Assignee: Wall Industries, Inc.Inventor: Henry Alexander Hood
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Patent number: 4020196Abstract: A process for treating filamentary products, such as yarn, includes advancing the yarn in a groove, which has orifices opening in the bottom thereof, and which communicate with a channel through which a fluid is expelled. The fluid supports the strand so that the yarn does not touch the groove. In addition, the fluid treats the yarn and helps to advance the yarn.Type: GrantFiled: June 5, 1975Date of Patent: April 26, 1977Assignee: Rhone-Poulenc-TextileInventors: Rene Guillermin, Jean Joly, Sylvio Sangalli
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Patent number: 3993805Abstract: A liquid finish composition is applied to a plurality of continuous thermoplastic polymer filaments in such a way that the composition is applied to all the filaments uniformly from filament to filament. More particularly, the filaments are arranged side-by-side in a substantially planar array, at a first location one face of the array is contacted with the liquid finish composition and, then, at a second location spaced apart from the first location the other face of the array is contacted with the same composition. During the contacting at the first and second locations the tension is controlled so that it is in a range in which the contacting applies the composition to the filaments uniformly from filament to filament.Type: GrantFiled: May 17, 1974Date of Patent: November 23, 1976Assignee: Concorde Fibers Inc.Inventor: John S. Roberts
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Patent number: 3968295Abstract: Deterioration of cord dip coating with resultant loss of adhesion of subsequently applied rubber to tire cords is avoided by using a cord dip composition including latex and an acrylic ester copolymer containing acrylic acid and methylol acrylamide.Type: GrantFiled: February 22, 1972Date of Patent: July 6, 1976Assignee: The B. F. Goodrich CompanyInventor: Thomas S. Solomon