Adhesively Bonded Patents (Class 57/251)
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Publication number: 20140165529Abstract: The invention relates to a composite material in which at least one reinforcement thread is deposited on a surface according to a path having at least one curved area on the deposition surface, wherein the reinforcement thread is connected to the surface by a polymeric binder. A twist is applied to the reinforcement thread before the deposition thereof at least in order to compensate the length differences of the extreme paths of the thread on either side of the width as measured in a direction parallel to the deposition surface.Type: ApplicationFiled: February 25, 2014Publication date: June 19, 2014Applicant: Hexcel Reinforcements, S.A.S.Inventors: Jean-Marc Beraud, Alain Bruyere
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Publication number: 20110252762Abstract: The present invention is relates to lyocell filament fibers having fatigue resistance and durability, of which the dimensional stability at high temperature and the high speed driving performance are good, and a tire cord prepared therefrom.Type: ApplicationFiled: September 1, 2008Publication date: October 20, 2011Applicant: KOLON INDUSTRIES, INC.Inventors: Gi-Woong Kim, So-Yeon Kwon, Ok-Hwa Jeon, Young-Se Oh, Jong-Cheol Jeong, Woo-Chul Kim, Il Chung, Jae-Woong Lee
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Publication number: 20100101202Abstract: The polyethylene naphthalate fiber for industrial material having a low fatigue in a composite is a polyethylene naphthalate fiber for industrial material containing an ethylene-2,6-naphthalate unit in 80% or more, characterize by having a strength of 6 cN/dtex or more and a secondary yield point elongation degree of 8% or less. The production method thereof is a method for producing a fiber in which a fiber having been obtained by melt-spinning a polyethylene naphthalate is subjected to stretching, characterized in that prestretch satisfying such conditions as the fiber temperature of from 80° C. to 120° C. and from 0.05 to 0.3 N/dtex is performed, a first stretch satisfying such conditions as the fiber temperature of from 130° C. to 180° C. and stretch tensile force of not more than the prestretch tensile force is performed, the total stretch magnification including subsequent stretches is set to 5 or more, and finally heat-treatment under tension with a stretch ratio of from 0 to 2% is performed.Type: ApplicationFiled: February 20, 2008Publication date: April 29, 2010Applicant: TEIJIN FIBERS LIMITEDInventors: Hisao Okumura, Fuyuki Terasaka
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Publication number: 20100089017Abstract: A composite yarn for technical or industrial use, particularly suitable for textile webs, is uniformly coated with a polymer and exhibits improved fir behaviour and improved resistance to sheath stripping. The yarn may be obtained by a process where a continuous yarn, obtained by spinning a large number of fibers, such as about 100 to 600 fibers made of an organic or inorganic material, of a suitable yarn diameter, such as between about 1 to 10 micrometers, is subjected to a process for mechanically opening the yarn by splaying, to uniformly spread out and separate the fibers, including inner layers of the fibers, without impairing functional properties of the yarn, simultaneously with or prior to coating of the fibers by a polymer material having a viscosity between 1000 and 10,000 mPa·s, and formed to have a circular cross-section and uniformly distributed fibers throughout the cross-section of the polymer material to limit desheathing of the yarn.Type: ApplicationFiled: September 21, 2009Publication date: April 15, 2010Applicant: CHAVANOZ INDUSTRIEInventors: Isabelle Conesa, Laurence Pollet, Philippe Berge
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Publication number: 20080148704Abstract: A synthetic fiber rope can be used to the limit of failure by setting a sensitivity of detection of the state of wear of the rope. Strands of the rope have indicator fibers or indicator yarn that have a high probability of losing electrical conductivity and thereby indicate cable wear. The matrix of the strand with indicator fibers or with at least one indicator yarn has a lower resistance to abrasion than the matrix of the other strands without indicator fibers or indicator yarns.Type: ApplicationFiled: December 4, 2007Publication date: June 26, 2008Inventor: Claudio De Angelis
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Patent number: 7189295Abstract: Yarn suitable for tufting comprises a base fiber ring spun or wrap spun with a second fiber at least partially comprising a heat-activated adhesive material such that the yarn includes from 0.1 to 12, preferably 0.25 to 10, weight percent adhesive material having a melting point within the range of 105° to 190° C., more preferably 165° to 190° C. A preferred base fiber is a synthetic staple fiber bundle. A preferred wrapping or insert fiber comprises copolyamide material, including ternary copolyamides of the 6/66/12 type. When the yarn is twist set by conventional processes and then tufted into carpet, the resulting carpet displays enhanced wear and appearance properties.Type: GrantFiled: October 21, 2004Date of Patent: March 13, 2007Assignee: Alliedsignal Inc.Inventor: Charles Edward Bowers
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Patent number: 7168232Abstract: The present invention provides a synthetic fiber and methods for its use and formation. The present invention may comprise a fiber component that is a twisted bundle comprised of multiple strands of a nonfibrillating monofilament, the degree of twist being greater than about 0.9 turns/inch (about 0.36 turns/cm). The present invention may further comprise another fiber component, discrete from the twisted fiber component, that is fibrillated.Type: GrantFiled: August 1, 2003Date of Patent: January 30, 2007Assignee: Forta CorporationInventors: Jeffrey B. Lovett, Daniel T. Biddle, H. Charles Pitts, Jr.
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Patent number: 6969437Abstract: Yarn suitable for tufting comprises a base fiber ring spun or wrap spun with a second fiber at least partially comprising a heat-activated adhesive material such that the yarn includes from 0.1 to 12, preferably 0.25 to 10, weight percent adhesive material having a melting point within the range of 105° to 190° C., more preferably 165° to 190° C. A preferred base fiber is a synthetic staple fiber bundle. A preferred wrapping or insert fiber comprises copolyamide material, including ternary copolyamides of the 6/66/12 type. When the yarn is twist set by conventional processes and then tufted into carpet, the resulting carpet displays enhanced wear and appearance properties.Type: GrantFiled: August 31, 1998Date of Patent: November 29, 2005Assignee: AlliedSignal Inc.Inventor: Charles Edward Bowers
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Publication number: 20040121115Abstract: A process for forming a carpet, and the carpet formed thereby are provided. The process includes forming a thread comprising low melt fiber and high melt fiber. The thread is then heated above a temperature sufficient to melt the low melt fiber. The thread is tufted in a carpet backing to form a tufted carpet. The tufted carpet is then printed or dyed with an image. A process for forming a low melt content yarn and the yarn formed thereby are provided. It is preferred that the carpet and low melt content yarn be adapted to printing or dyeing.Type: ApplicationFiled: December 23, 2002Publication date: June 24, 2004Inventors: James C. Bridges, Wilson A. Latham, David M. Lasseter, David E. McCarty, Carroll E. Deen
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Publication number: 20040043213Abstract: A method for the production of a multifilament carbon fibre-based longitudinal reinforcing element, designed to be incorporated in a rubber-based item. Said method comprises the following steps, whereby untwisted carbon fibres are plunged into an impregnating bath contained a solution of resorcinol-formaldehyde resin and rubber latex, the impregnated fibres are then dried and the dried fibres are subsequently twisted. The inventive method is characterised by the fact that it also comprises a step, during the impregnation step, consisting in opening out the carbon fibres by spreading out the constituent filaments thereof in such a way that each fibre has an increased surface area on which the impregnation can be performed.Type: ApplicationFiled: June 13, 2003Publication date: March 4, 2004Applicant: Sovoutri Societe Voultaine De Transformes IndustrielsInventor: Corinne Tonon
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Patent number: 6682618Abstract: Yarn suitable for tufting comprises a base fiber ring spun or wrap spun with a second fiber at least partially comprising a heat-activated adhesive material such that the yarn includes from 0.1 to 12, preferably 0.25 to 10, weight percent adhesive material having a melting point within the range of 105° to 190° C., more preferably 165° to 190° C. A preferred base fiber is a synthetic staple fiber bundle. A preferred wrapping or insert fiber is a copolyamide fiber, including ternary copolyamides of the 6/66/12 type. When the yarn is twist set by conventional processes and then tufted into carpet, the resulting carpet displays enhanced wear and appearance properties.Type: GrantFiled: September 19, 1997Date of Patent: January 27, 2004Assignee: AlliedSignal Inc.Inventor: Charles Edward Bowers
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Patent number: 6460321Abstract: A racquet string comprises of a core surrounded by at least one sheath, having a plurality of sheath fibers wound around said core, and a coating resin uniting the core and sheath fibers into a unitary body. The sheath fibers are helically wound about the core at a high wind angle, i.e., at a wind angle between 25 and 40 degrees relative to the core axis. Preferably, the sheath comprises a plurality of main sheath fibers and a plurality of non-main sheath fibers, and the core, the main sheath fibers, and the coating resin are transparent. Preferably, the non-main sheath fibers have a relatively low transparency. In this manner, the non-main fibers produce a multi-helix appearance when the string is observed from the side.Type: GrantFiled: December 12, 1997Date of Patent: October 8, 2002Assignee: Gosen Co., Ltd.Inventors: Tatsumi Koshimae, Katsuo Kanno
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Patent number: 6397574Abstract: A synthetic rope has multiple layers of load-bearing aramide fiber strands laid together with a coating on the synthetic fiber strands in the outermost layer of strands. The coating includes an impregnating substance with additives of UV stabilizers, short fibers, and oxidation and reduction blockers to provide reliable protection against environmental influences damaging to the rope, as well as an unchanged adequate resistance of the synthetic fiber rope to abrasion.Type: GrantFiled: November 24, 1999Date of Patent: June 4, 2002Assignee: Inventio AgInventor: Claudio De Angelis
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Patent number: 6399194Abstract: The present invention offers polypropylene terephthalate textured yarn which has little dyeing unevenness or fibrillation, and is outstanding in its product quality, by carrying out texturing at the same time as drawing under specified conditions using polypropylene undrawn yarn; together with a method for the production thereof.Type: GrantFiled: May 24, 2001Date of Patent: June 4, 2002Assignee: Toray Industries, Inc.Inventors: Hideaki Kunisada, Katsuhiko Mochizuki, Koji Sugano, Yuhei Maeda
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Patent number: 6148597Abstract: Yarns and fishing lines are made by a process that includes the step of exposing an opaque yarn made from ultrahigh molecular weight, gel spun polyolefin filaments to a temperature within the melting point range of the filaments for a time sufficient to at least partially fuse the contact surfaces of adjacent filaments. For ultrahigh molecular weight, gel spun polyethylene, this temperature is preferably within the range from about 150.degree.-157.degree. C. The surface fusion between and among filaments imparts desirable handling characteristics to the ultrahigh molecular weight, gel spun polyolefin yarns and fishing lines that are similar to those of a conventional monofilaments. Preferably, the temperature, residence time, and stretching ratio at the selected temperature are chosen to provide a fishing line exhibiting a tensile modulus within the range from about 230 g/d to about 780 g/d with a tenacity of at least 15 g/d.Type: GrantFiled: December 26, 1995Date of Patent: November 21, 2000Assignee: Berkley Inc.Inventor: Roger B. Cook
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Patent number: 5571620Abstract: This invention relates to linear, water-dispersible sulfopolyesters that incorporate higher order polyalkylene glycol units. The sulfopolyesters provide improved abrasion and blocking resistances in polyester fiber sizing applications.Type: GrantFiled: November 27, 1995Date of Patent: November 5, 1996Assignee: Eastman Chemical CompanyInventors: Scott E. George, Edgar W. Lefler, IV, James M. Spain, Jr.
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Patent number: 5540990Abstract: Monofilament lines are made from twisted gel spun polyolefin yarns that are heated and stretched under conditions sufficient to fuse adjacent filaments into a line having monofilament characteristics and high tenacity.Type: GrantFiled: April 27, 1995Date of Patent: July 30, 1996Assignee: Berkley, Inc.Inventor: Roger B. Cook
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Patent number: 5521007Abstract: A fiber cord having a plurality of fiber filaments twisted together in a first direction to produce strand yarns with a primary twist and a first twist coefficient, with a plurality of the strand yarns being in turn aligned and twisted together in a second twist direction opposite to the first twist direction to produce a fiber cord with a final twist and a second twist coefficient. The second twist coefficient is between 4.0 and 7.0 and the ratio of the second twist coefficient to the first twist coefficient is at least 1.25.Type: GrantFiled: July 30, 1992Date of Patent: May 28, 1996Assignee: Mitsuboshi Belting Ltd.Inventor: Tomomitsu Kurokawa
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Patent number: 5431979Abstract: A cut-resistant tarpaulin has a waterproof coating bonded to a cut-resistant woven fabric. The fabric has a leno or gauze weave. The fabric has warp yarns and weft yarns of braided fibers. The fibers have an initial modulus greater than 400 grams per denier.Type: GrantFiled: April 12, 1994Date of Patent: July 11, 1995Assignee: Hoechst Celanese CorporationInventors: Allan M. Dellinger, Michelle C. Carter
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Patent number: 5063108Abstract: A textured, continuous, multi-filament polyester yarn or fabric has a plasticizer incorporated onto the surface thereof and/or into the interfilamentary structure thereof either during the texturizing process or after the yarn has been made into a gauze-like fabric substrate. Because of the plasticizer, the gauze is enabled to be laminated to a vinyl sheet as it is formed. The platicizer is characterized in that it is compatible with both the vinyl and the polyester, it softens the vinyl to receive the polyester gauze, it has a viscosity in the range of 25-105 centistokes (cs), and it swells or plasticizes the vinyl to such an extent that the polyester gauze becomes imbedded therein and affixed thereto to effectively bond the gauze to the vinyl. The gauze fabric substrate, when laminated to the vinyl sheet material, gives the vinyl sheet both enhanced strength and stability.Type: GrantFiled: June 6, 1990Date of Patent: November 5, 1991Assignee: Unifi, Inc.Inventor: James H. Whetstone
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Patent number: 5049447Abstract: Disclosed is a polyethylene terephthalate untwisted multifilament which satisfies the following requirements (A), (B), (C) and (D);(A) the intrinsic viscosity [IV] is 0.97 to 1.15;(B) the amorphous orientation function [fa] is not larger than 0.55;(C) the tenacity [T] (g/d), the shrinkage [.DELTA.S] (%) as measured after standing in dry air at 150.degree. C. for 30 minutes, the medium elongation [ME] (%) under a load of 4.5 g/d, and the dimensional stability index [Y] expressed by the formula: Y=ME.sup.0.81 +.DELTA.S+1.32 are within ranges defined by the following formulae (a), (b), (c), (d) and (e):0.33Y+5.55.ltoreq.T.ltoreq.0.33Y+6.50 (a),8.0.ltoreq.T.ltoreq.9.5 (b),8.5.ltoreq.Y.ltoreq.10.5 (c),5.ltoreq.ME.ltoreq.10 (d),and2.ltoreq..DELTA.S.ltoreq.g (e);and (d) the elongation at break is at least 11% and the product of the tenacity and elongation, which is defined by: ##EQU1## is 30 to 36.Type: GrantFiled: May 2, 1989Date of Patent: September 17, 1991Assignee: Toray Industries, Inc.Inventors: Takeshi Shindo, Masuki Sano, Ken-ichiro Oka
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Patent number: 4946375Abstract: A polyamide yarn especially suitable as a tire yarn having 0.2-2.0 wt. % of a finish, said finish consisting essentially of 50-95 wt. % lubricants having a melting point not greater than about 12.degree. C., wherein at least 40 wt. % of the lubricants is pentaerythritol tetrapelargonate, 5-50 wt. % of the finish is sorbitan triester adduct with 10-30 moles ethylene oxide, 0-5 wt. % of the finish is antioxidant and 0-2 wt. % of finish is a polysiloxane.Type: GrantFiled: July 17, 1989Date of Patent: August 7, 1990Assignee: E. I. Du Pont de Nemours and CompanyInventor: Fleming H. Day
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Patent number: 4860531Abstract: A synthetic string for a sports racquet has an inner single strand or multifilament core, wrapped with one or more helically wound layers of large diameter strands of monofilament, and surrounded by an extruded coating of regular polygonal cross-section having 5 to 8 planar surfaces joined at parallel, axially extending biting edges which serve to impart greater topspin and slice control to the ball.Type: GrantFiled: December 16, 1987Date of Patent: August 29, 1989Inventors: D. Phillips Wells, Stephen R. Phelps
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Patent number: 4767646Abstract: Aqueous overfinish compositions, yarns treated therewith, and methods of producing wet abrasion resistant cordage from the yarn are all disclosed. One of the compositions includes an oxidized polyethylene emulsified with a non-nitrogen, nonionic emulsifier and neutralized with an alkali hydroxide, and a compound selected from the group consisting of a siloxane of the comonomers dimethyl and 3-[(2-aminoethyl)aminopropyl], and an amide melamine wax. An alternate finish composition comprises an oxidized polyethylene, neutralized with ammonium hydroxide and emulsified with a non-nitrogen, nonionic emulsifier. Yarn treated with this alternate finish has enhanced wet abrasion resistance. Yarns of this invention are ideally suited for heavy ropes and other industrial cordage applications where wet and dry abrasion resistance and strength are desirable.Type: GrantFiled: October 24, 1985Date of Patent: August 30, 1988Assignee: Allied CorporationInventors: Colleen W. Cordova, Robert M. Marshall
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Patent number: 4762583Abstract: A composite structure comprises at least one ply comprising approximately parallel unidirected twines comprising helically-configured matrix-impregnated continuous strands of filament reinforcements to provide a flanged composite cantilever spring which serves as the principal constituent of a coupling structure. An interior ply of a coupling structure body member comprises unidirected longitudinal twines configured at a body member extremity to provide a flange member connected to a cantilever spring. An exterior ply is disposed transversely of and superimposed upon the interior ply to provide the cantilever spring hinge line. The composite cantilever spring can be constructed to deflect about either a straight or curved hinge line. A preferred tubular form of the coupling structure comprises at least one end configured as a polygonal array of flanged cantilever springs which serve as the socket end of a spring-lock coupling used to connect mating flanged spigot-end structures.Type: GrantFiled: April 1, 1987Date of Patent: August 9, 1988Inventor: Charles E. Kaempen
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Patent number: 4757658Abstract: A composite structure comprises at least one ply comprising approximately parallel unidirected twines comprising helically-configured matrix-impregnated continuous strands of filament reinforcements to provide a flanged composite cantilever spring which serves as the principal constituent of a coupling structure. An interior ply of a coupling structure body member comprises unidirected longitudinal twines configured at a body member extremity to provide a flange member connected to a cantilever spring. An exterior ply is disposed transversely of and superimposed upon the interior ply to provide the cantilever spring hinge line. The composite cantilever spring can be constructed to deflect about either a straight or curved hinge line. A preferred tubular form of the coupling structure comprises at least one end configured as a polygonal array of flanged cantilever springs which serve as the socket end of a spring-lock coupling used to connect mating flanged spigot-end structures.Type: GrantFiled: April 1, 1987Date of Patent: July 19, 1988Inventor: Charles E. Kaempen
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Patent number: 4751952Abstract: A pneumatic tire comprises an annular tread at a central portion, a pair of side wall portions, bead portions, a carcass extending between both bead wires, and a breaker composed of two or more cord layers with cords arranged at a cord angle of 5-60.degree. relative to the circumferential direction and between the tread and the carcass and intersecting in the adjacent plies. The cords constituting the carcass or the breaker are substantially made of polytetramethylene adipamide (4,6-nylon), and as buried in a rubber of the tire, have the following characteristics:5.0(%).ltoreq.E.sub.2 .ltoreq.9.0(%)E.sub.2 +.DELTA.S.ltoreq.13.0(%)where E.sub.2 is an elongation (%) at 2.0 g/d, and .DELTA.S is a heat shrinkability (%) when measured in the state that the cords are left at 177.degree. C. under application of load of 20 g/cord for 30 minutes and kept as it is. The burying rubber has the following characteristics:20 kg/cm.sup.2 .ltoreq.M.sub.100(%) .ltoreq.60 kg/cm.sup.2where M.sub.Type: GrantFiled: April 8, 1986Date of Patent: June 21, 1988Assignee: Bridgestone CorporationInventor: Isamu Imai
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Patent number: 4720398Abstract: A process for the improvement of the adhesion to rubber or a thermoplastic elastomer of synthetic yarns, cords or fabrics made therefrom by applying thereto an adhesive consisting of an aqueous solution or dispersion of a polyurethane with ionic groups, capped isocyanate groups and groups with a Zerewitinoff-active H atom, followed by drying the product thus treated. The polyurethane corresponds to the structure: ##STR1## wherein X has the meaning of an O or S atom or of an O-, S-, N- or P-containing group with a Zerewitinoff-active H atom or to which prior to reaction with an isocyanate group a Zerewitinoff-active H atom had been attached,R.sub.1 represents the remainder of a capping agent,R.sub.2 represents an at least divalent organic group which remains after removal of isocyanate groups from a polyisocyanate,R.sub.3 represents an at least divalent organic group which remains after removal of --XH groups from an organic compound having a molecular weight of 62 to 2000,R.sub.Type: GrantFiled: March 14, 1985Date of Patent: January 19, 1988Assignee: Akzo nvInventors: Hendricus A. A. van Aalten, Freerk R. van Calker, Willem E. Weening
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Patent number: 4715176Abstract: A manufacture of an impact-resistant power transmission belt tensile cord and belt using the same. The tensile cords of the invention are caused to have coordinated characteristics of toughness, elongation under load, shrinkage, and shrinkage stress so as to provide absorption of longitudinal and transverse impact shock forces to the belt during high power transmission therethrough, with minimized dimensional changes of the belt over the useful life thereof, permitting the belt to be utilized in multiple parallel drive applications in extremely rigorous environments with minimized maintenance. The tensile cords are adhesively coated, thermally drawn and set multifilament polyester cords.Type: GrantFiled: June 2, 1986Date of Patent: December 29, 1987Assignee: Mitsuboshi Belting Ltd.Inventors: Satoshi Mashimo, Kunihiro Fujita, Masayuki Tanaka, Yoshio Yamaguchi, Kazuhiro Takeda
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Patent number: 4680923Abstract: A composite structure comprises at least one ply comprising approximately parallel unidirected twines comprising helically-configured matrix-impregnated continuous strands of filament reinforcements to provide a flanged composite cantilever spring which serves as the principal constituent of a coupling structure. An interior ply of a coupling structure body member comprises unidirected longitudinal twines configured at a body member extremity to provide a flange member connected to a cantilever spring. An exterior ply is disposed transversely of and superimposed upon the interior ply to provide the cantilever spring hinge line. The composite cantilever spring can be constructed to deflect about either a straight or curved hinge line. A preferred tubular form of the coupling structure comprises at least one end configured as a polygonal array of flanged cantilever springs which serve as the socket end of a spring-lock coupling used to connect mating flanged spigot-end structures.Type: GrantFiled: March 27, 1985Date of Patent: July 21, 1987Inventor: Charles E. Kaempen
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Patent number: 4660364Abstract: Athletic racket string construction consisting of a seven strand core and an outer layer of wrapping fibers.Type: GrantFiled: July 22, 1985Date of Patent: April 28, 1987Assignee: Alpha Sports, Inc.Inventor: Chinn-Chann Chiang
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Patent number: 4652488Abstract: A multifilament yarn of an aromatic polyamide, in particular poly-p-phenylene terephthalamide, is provided with an adhesive coating of a cured epoxy compound, the yarn having a free epoxide content not higher than 10 mmoles/kg. The yarn is made by spinning a solution of an aromatic polyamide into a coagulation bath and subjecting the resulting filaments to the subsequent steps of washing, applying a curable epoxy compound and one or more alkaline curing agents, curing and winding the yarn thus treated into a package. The resulting yarn can be processed into a reinforcing element for, e.g., tires in a one-step dipping process. A cord made from the yarn displays an improved resorcinol-formaldehyde-latex dip pickup.Type: GrantFiled: September 23, 1985Date of Patent: March 24, 1987Assignee: Akzo nvInventors: Stephanus Willemsen, Willem E. Weening, Anne Steenbergen
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Patent number: 4624102Abstract: A method for reducing broken fibers on the surface of a carbon fiber bundle involves passing the yarn through a passage in a fluid jet which in turn is supplied with a rimming flow of liquid. When the fiber bundle contacts the liquid, some of the broken fibers snap off and others are twisted and unidirectionally cabled back into the fiber bundle.Type: GrantFiled: June 24, 1985Date of Patent: November 25, 1986Assignee: E. I. Du Pont de Nemours and CompanyInventor: John H. Bell, Jr.
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Patent number: 4610905Abstract: Textile flat-shaped structures exhibiting specific properties, such as flame-resistance or adsorbing capacity, are required for technical purposes, said structures being at the same time characterized by a high flexibility and tensile strength, as well as good wearing characteristics when used for protective suits. This is achieved by the invention by yarns that are sheathed with active ingredients, such as adsorbents, fire-proofing agents, ion-exchangers, decontaminating agents for chemical combat agents, catalysts or fixed enzymes. The active ingredients are adhered to the surface of the yarn or embedded in a binding agent. The sheathing may be additionally braided or flocked.Type: GrantFiled: November 18, 1983Date of Patent: September 9, 1986Inventors: Hubert von Blucher, Hasso von Blucher, Ernest de Ruiter
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Patent number: 4565061Abstract: A string is provided which has been stabilized to retain its initial tension over a long period when strung in a racket, and which has a high ratio of tensile strength to modulus of Elasticity to cause the deflection of the string woven membrane to be almost linear with applied force. The string has a very low Modulus of elasticity to cause the region of the string in the vicinity of the ball impact point to stretch easily and provide a cup for the ball at the moment of highest string membrane deflection.Type: GrantFiled: December 12, 1983Date of Patent: January 21, 1986Inventor: Enoch J. Durbin
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Patent number: 4557967Abstract: A multifilament yarn of an aromatic polyamide, in particular poly-p-phenylene terephthalamide, is provided with an adhesive coating of a cured epoxy compound, the yarn having a free epoxide content not higher than 10 mmoles/kg. The yarn is made by spinning a solution of an aromatic polyamide into a coagulation bath and subjecting the resulting filaments to the subsequent steps of washing, applying a curable epoxy compound and one or more alkaline curing agents, curing and winding the yarn thus treated into a package. The resulting yarn can be processed into a reinforcing element for, e.g., tires in a one-step dipping process. A cord made from the yarn displays an improved resorcinol-formaldehyde-latex dip pickup.Type: GrantFiled: November 1, 1983Date of Patent: December 10, 1985Assignee: Akzo N.V.Inventors: Stephanus Willemsen, Willem E. Weening, Anne Steenbergen
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Patent number: 4516394Abstract: There is disclosed an improved feedstock package for a spiraling machine. The package comprises filamentary yarn having a twist of less than 5 tpi wound around a king spool. In contrast to prior art cone packages, the invention significantly reduces package distortion and threadline breakage in high speed spiraling operations employed in, for example, making reinforced plastic hose. Preferred embodiments include the yarn being greige yarn and the package rotational speeds on the spiraling machine being at least 1,400 rpm.Type: GrantFiled: September 7, 1982Date of Patent: May 14, 1985Assignee: Celanese CorporationInventors: Gilbert C. Bell, Harry W. Stanhope
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Patent number: 4482605Abstract: A sized textile warp yarn A for weaving on a loom is disclosed which includes a size coating S carried by fibers 26 on only one side 22 of the yarn bundle B.Type: GrantFiled: May 21, 1982Date of Patent: November 13, 1984Inventor: William H. Cutts
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Patent number: 4452160Abstract: A pile yarn for a carpet and a cut pile carpet.A bulky yarn of a polyamide multifilament is fed to a false twisting and heat setting device where filaments in the yarn are thermally and partially adhered to each other while the yarn is false twisted. A bulky cohesive continuous multifilament yarn thus obtained has alternate twists therein along the lengthwise direction thereof and a latent torque therein, and after it is heat treated under a constrained condition, preferably by means of saturated or superheated steam, so that the torque in the yarn is lowered, it is tufted on a substrate of a carpet as a pile yarn and the piles are cut.Type: GrantFiled: November 12, 1982Date of Patent: June 5, 1984Assignee: Teijin LimitedInventors: Koji Tajiri, Mikio Oohara, Kiyoshi Maruo
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Patent number: 4409283Abstract: A formable viscid caulking member including a viscid medium; a flexible multifilament member saturated with the viscid medium; and a method of making such a caulking member.Type: GrantFiled: January 25, 1982Date of Patent: October 11, 1983Inventor: Donald E. Boyle, Jr.
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Patent number: 4391088Abstract: A string for sports rackets consists of a gut core covered with filamentary aramid and impregnated with at least one coating of water-resistant, vapor-impermeable, flexible smooth adhesive polymeric resin, which adheres the filamentary aramid to the gut core.Type: GrantFiled: January 13, 1982Date of Patent: July 5, 1983Assignee: United States Tennis Gut Association, Inc.Inventors: Jerome Salsky, Patrick K. Janis, Kenneth E. Branen
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Patent number: 4378725Abstract: A method for producing a sealed rope of braided or twisted filaments. Heat-shrinkable filaments are braided or twisted about a core of a thermoplastic material to form a rope and the rope is placed under tension and treated to cause the thermoplastic core material to melt. Simultaneously the rope is maintained at a temperature sufficient to cause the heat-shrinkable filaments to shrink but not to melt, whereby the shrinking of the filaments, while the rope is under tension, reduces the cross section of the rope and causes the material to penetrate into the openings between and to surround and seal the filaments of the rope.Type: GrantFiled: November 20, 1980Date of Patent: April 5, 1983Assignee: Anza B.V.Inventors: Johannes Hospers, Gerhard ten Lohuis
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Patent number: 4368615Abstract: A fibre, a thread bundle and a cord entirely or substantially consisting of poly-p-phenylene terephthalamide having an inherent viscosity of at least 2.5. The fibre has a tenacity of at least 10 cN/dtex, an elongation at break of at least 2.7% and an initial modulus of at least 300 cN/dtex, said fibre having an improved resistance to the action of heat as shown by a heat sensitivity index not higher than 12. Dipped cords formed from said fibre have a cord efficiency of at least 75%.Type: GrantFiled: June 2, 1980Date of Patent: January 18, 1983Assignee: Akzo N.V.Inventor: Henri T. Lammers
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Patent number: 4355592Abstract: A pile yarn for a carpet and a cut pile carpet.A bulky yarn of a polyamide multifilament is fed to a false twisting and heat setting device where filaments in the yarn are thermally and partially adhered to each other while the yarn is false twisted. A bulky cohesive continuous multifilament yarn thus obtained has alternate twists therein along the lengthwise direction thereof and a latent torque therein, and after it is tufted on a substrate of a carpet as a pile yarn and after the piles are cut, the carpet is heat treated, preferably by means of saturated or superheated steam. The torque in the cut piles is developed to create true twists.Type: GrantFiled: July 12, 1979Date of Patent: October 26, 1982Assignee: Teijin LimitedInventors: Koji Tajiri, Mikio Oohara, Kiyoshi Maruo
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Patent number: 4300343Abstract: A gut having a novel structure made of a thermoplastic resin and a method of producing the same.Type: GrantFiled: July 16, 1979Date of Patent: November 17, 1981Assignees: Kureha Kagaku Kogyo Kabushiki Kaisha, Kureha Gosen Kabushiki KaishaInventors: Masaaki Nakamura, Hisaaki Ueba
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Patent number: 4297835Abstract: An integrated string consisting of plural mono-filaments, each of which being fused together with adjacent mono-filaments at the contact points and externally having sharp grooves produced by twisting along its length and internally defining confined spiral bores between the component mono-filaments along its length. The external spiral grooves produced by twisting provide frictional resistance against slipping without deteriorating the specific surface tenacity and the tensile strength of the component synthetic mono-filaments. The internal spiral bores between the component mono-filaments improve the flexibility of the string.Type: GrantFiled: November 23, 1979Date of Patent: November 3, 1981Inventor: Mituo Shimizu
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Patent number: 4288977Abstract: The quality of a resin-bonded twisted string comprised of three flattened monofilaments in a side-by-side relationship is improved when the monofilaments are precoated with resin prior to twisting and then twisted in a zone wherein the excess lengths of the two outer monofilaments in the twisted configuration is compensated for during twisting by forwarding the two outer monofilaments at a positively controlled speed and allowing the speed of the middle monofilament to be controlled by being drawn into the twisting zone through a roller slot guide at a speed freely determined relative to the speed of the two other monofilaments entering the twisting zone.Type: GrantFiled: April 10, 1980Date of Patent: September 15, 1981Assignee: E. I. Du Pont de Nemours and CompanyInventors: Thomas J. Csaky, Sibbley P. Gauntt, Ralph L. Heard, Jr.
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Patent number: 4275117Abstract: An integrated string primarily for use in connection with athletic rackets, such as tennis, badminton, squash and the like, but also usable for fishing line, musical strings, etc., said string in one embodiment comprising a thermoplastic core having a thermoplastic sheath covering same and integrated thereto, said core material and said sheath comprising strands therein having substantially different melting points, and in a second embodiment said string consisting of a braided sheath, with no inner core, said sheath comprising thermoplastic strands having substantially different melting points.Type: GrantFiled: May 22, 1978Date of Patent: June 23, 1981Assignee: Ashaway Line & Twine Mfg. Co.Inventor: Steven J. Crandall
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Patent number: 4269024Abstract: A continuous elongate strength member for reinforcing an optical fibre cable consists of an assembly of aromatic polyamide filaments impregnated with a synthetic resin, in which the filaments are individually coated with the resin, and the filaments of at least an outer layer of the assembly are helically stranded. The impregnation is carried out by separating the filaments and immersing them in a low viscosity dispersion of the resin in a liquid medium; the filaments are then stranded, and the resin is cured. Apparatus for manufacturing the strength member and various forms of cable incorporating one or more strength members, are described.Type: GrantFiled: July 19, 1979Date of Patent: May 26, 1981Assignee: Associated Electrical Industries LimitedInventors: Raymond S. Ashpole, Colin J. Peachey, Arup K. Kar
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Patent number: 4250702Abstract: A flexible thread consisting of filaments held together by twisting, which thread is made of a polymer base material wherein all of the individual filaments of the thread are encased in a synthetic resin and embedded therein so that adjacent filaments are intimately bonded to one another, the synthetic resin being in partially cured state, chemically stable at room temperature, the resin being fully curable by heating; the thread can, therefore, be woven into a mesh before final curing to harden the thread.Type: GrantFiled: April 18, 1979Date of Patent: February 17, 1981Assignee: Frohlich & Wolff GmbHInventor: Rudolf Gundlach