Patents Assigned to Teijin Twaron GmbH
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Publication number: 20080248709Abstract: The invention relates to a fabric having both stab resistant and anti-ballistic properties. The fabric is made of yarn of a weight greater than about 500 dtex, and the fabric has a minimum shrinkage factor of at least about 1% achieved through a densification treatment. The invention further relates to a method of producing a such a fabric having the steps of agitating a fabric made of a yarn of a weight greater than about 500 dtex, substantially removing a spin finish from the fabric before, during or after the agitating step, and drying the fabric.Type: ApplicationFiled: July 26, 2007Publication date: October 9, 2008Applicant: TEIJIN TWARON GMBHInventors: David R. HAND, Rudiger Hartert, Christian Bottger
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Patent number: 7354875Abstract: The invention relates to a fabric having both stab resistant and anti-ballistic properties. The fabric is made of yarn of a weight greater than about 500 dtex, and the fabric has a minimum shrinkage factor of at least about 1% achieved through a densification treatment. The invention further relates to a method of producing a such a fabric having the steps of agitating a fabric made of a yarn of a weight greater than about 500 dtex, substantially removing a spin finish from the fabric before, during or after the agitating step, and drying the fabric.Type: GrantFiled: February 4, 2003Date of Patent: April 8, 2008Assignee: Teijin Twaron GmbHInventors: David R. Hand, Rudiger Hartert, Christian Bottger
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Patent number: 7153790Abstract: A penetration-resistant material is described to include at least a double layer of woven fabric, wherein the double layer includes a first layer of fabric composed of a first set of threads having 3.5 to 20 threads/cm, having a linear density of at least 210 dtex, and composing at least 65% of the first layer fabric weight, and a second set of threads comprising 0.5 to 16 threads/cm and having a linear density of at least 50 dtex, with the second set of threads being transverse to the first set of threads, and the ratio of the number of threads/cm of the first set to that of the second set is greater than 1:1, and a second layer of fabric composed of a first set of threads having 0.5 to 16 threads/cm and having a linear density of at least 50 dtex, and a second set of threads having 3.Type: GrantFiled: September 2, 2003Date of Patent: December 26, 2006Assignee: Teijin Twaron GmbHInventors: Christian K. Böttger, Rüdiger Hartert, Kurt R. Stolze, Achim G. Fels
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Patent number: 7150046Abstract: Protective clothing comprises at least one protective material including an array of one or more superposed layers of woven fabric, wherein each fabric layer is flexible and includes at least one fabric, made of yarns having a strength of at least 900 MPa, that is joined to at least one polymer film, and wherein the protective material has an outer surface facing the side of attack and an inner surface facing away from the side of attack, wherein the protective material also has at least one layer of felt, placed in every case on one of the fabric layers.Type: GrantFiled: October 19, 2002Date of Patent: December 19, 2006Assignee: Teijin Twaron GmbHInventors: Christian Kurt Böttger, Joe Krummel
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Patent number: 7132131Abstract: A method for producing a hydrophobically finished aramid fabric includes at least a) providing an aramid yarn, b) applying a water-repellent agent to the aramid yarn, c) drying the aramid yarn resulting from step b), d) producing a fabric from the aramid yarn resulting from step c), and e) heat treating the fabric. The fabric is used to produce an antiballistically effective article. The v50 values for the hydrophobically finished fabrics of the invention are in the wet state higher than, and in the dry state at least as high as or higher than, the values for hydrophobically finished fabrics not of the invention in the wet and dry states, respectively.Type: GrantFiled: September 8, 2003Date of Patent: November 7, 2006Assignee: Teijin Twaron GmbHInventors: Christian Kurt Böttger, Rüdiger Hartert, Kurt Rainer Stolze, Jan Jager, Henk van de Ven, Peter Gerard Akker
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Patent number: 7132380Abstract: A penetration-resistant material having at least a double layer of woven fabric having a first layer of fabric composed of a first set of threads having 3.5 to 20 threads/cm, a linear density of at least 210 dtex, and at least 65% of the fabric weight, and a second set of threads having 0.5 to 16 threads/cm and a linear density of at least 50 dtex and a second layer of fabric composed of a first set of threads having 0.5 to 16 threads/cm and a linear density of at least 50 dtex, and a second set of threads having 3.5 to 20 threads/cm, a linear density of at least 210 dtex, and at least 65% of the fabric weight. In each layer, the second set are transverse to the first set and the ratio of the number of threads/cm of the second set to that of the first set is >1.Type: GrantFiled: March 8, 2002Date of Patent: November 7, 2006Assignee: Teijin Twaron GmbHInventors: Christian Böttger, Achim Fels, Christoph Baumgart, Bärbel Dorloff-Lumpe
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Publication number: 20060223398Abstract: A flexible penetration-resistant package is described, comprising a) at least one laminate consisting of at least one layer of yarns comprising fibers with a strength of at least 900 MPa as per ASTM D-885, wherein the layer of yarns is bound to at least one polymer continuum having a modulus of elasticity in extension of 5 to 1000 MPa as per ASTM D-882 and wherein the package has an outer surface facing the side under attack and an inner surface facing away from the side under attack, and b) a layer of compressible material, the layer arranged either on the inner surface of the package or at such a position in the package between the laminates that from this position the number of laminates toward the outer surface of the package is at least twice the number of laminates toward the inner surface. The package is used to produce protective clothing, in particular protective vests, suits, and mats.Type: ApplicationFiled: May 4, 2004Publication date: October 5, 2006Applicants: TEIJIN TWARON GMBH, F.LLI CITTERIO S.P.A.Inventors: Giorgio Citterio, Christian Bottger
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Publication number: 20060073753Abstract: A penetration-resistant material is described to include at least a double layer of woven fabric, wherein the double layer includes a first layer of fabric composed of a first set of threads having 3.5 to 20 threads/cm, having a linear density of at least 210 dtex, and composing at least 65% of the fabric weight, and a second set of threads comprising 0.5 to 16 threads/cm and having a linear density of at least 50 dtex, with the second set of threads being transverse to the first set of threads, and the ratio of the number of threads/cm of the first set to that of the second set is >1, and a second layer of fabric composed of a first set of threads having 0.5 to 16 threads/cm and having a linear density of at least 50 dtex, and a second set of threads having 3.Type: ApplicationFiled: September 2, 2003Publication date: April 6, 2006Applicant: Teijin Twaron GmbhInventors: Christian Bottger, Rudiger Hartert, Kurt Stolze, Achim Fels
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Publication number: 20050179162Abstract: The invention pertains to a method for manufacturing filaments from an optically anisotropic spinning solution in which the spinning solution is extruded through a spinneret including a spinning field with a plurality of spinning orifices into a coagulation bath through a slot or diaphragm, the edges thereof being formed by plates with upper and lower sides. The upper sides of the plates are defined as the sides having the shortest distance to the spinning field, wherein the line through the center of the spinning field and perpendicular to the upper sides is located a distance (d) from a parallel line through the center of the slot or diaphragm. The projection of the slot or diaphragm has about the same size and shape as the projection of the spinning field. The plane of the upper side of one plate has a shorter distance to the center of the spinning field than the plane of the upper side of the other plate, and the line has a smaller distance to the edge of plate than to edge of plate.Type: ApplicationFiled: January 18, 2003Publication date: August 18, 2005Applicant: TEIJIN TWARON GMBHInventors: Johannes Meerman, Wilhelmus Roelofs
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Patent number: 6921572Abstract: A transmission belt is made of a cord, a rubber or thermoplastic matrix, and an adhesion material which is able to adhere the cord to the rubber or thermoplastic matrix. The cord is made of at least two yarns, such that a first yarn has a melting or decomposition point T1 and a second yarn has a melting point T2, wherein T1>T2. A ratio of a linear density of the first yarn to a linear density of the second yarn is between 1,000:1 and 1:1, wherein the second yarn is fused to the first yarn. A method of making such cords includes intertwining the first and the second yarn and then heating to a temperature between T1 and T2, with the heating step being integrated with or followed by a step wherein the cord is subjected to a dipping treatment with a rubber adhesion material.Type: GrantFiled: February 13, 2001Date of Patent: July 26, 2005Assignee: Teijin Twaron GmbHInventor: Jan Van Campen
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Patent number: 6890871Abstract: A penetration-resistant material is disclosed comprising at least one layer having a thickness D, the layer comprising a first and second layer of woven fabric, with the first and second layers being bonded together with an adhesive material, the first layer of fabric composed of a first set of threads comprising 3.5 to 20 threads/cm, having a linear density of at least 210 dtex, the filaments forming the threads having a diameter F1, and comprising at least 65% of the fabric weight, and a second set of threads comprising 0.5 to 16 threads/cm and having a linear density of at least 50 dtex, with the second set of threads being at an angle of >0° to 90° with respect to the first set of threads, and the ratio of the number of threads/cm of the first set to that of the second set being >1, and the second layer of fabric being composed of a first set of threads comprising 0.5 to 16 threads/cm and having a linear density of at least 50 dtex, and a second set of threads comprising 3.Type: GrantFiled: March 8, 2002Date of Patent: May 10, 2005Assignee: Teijin Twaron GmbHInventors: Christian Böttger, Achim Fels
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Patent number: 6829881Abstract: The invention pertains to cut-resistant articles, in particular to gloves. The articles comprise microfilaments of aromatic polyamides, more preferably p-aramid, wherein the titer of the microfilaments is equal to or smaller than 1.3 dtex (1.3×10−4 g/m). In a preferred embodiment the article is prepared from staple fibers with a length between 38 and 100 mm.Type: GrantFiled: February 28, 2001Date of Patent: December 14, 2004Assignee: Teijin Twaron GmbHInventor: Johannes Manten
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Patent number: 6827872Abstract: A procedure for removing a water-insoluble finish from aramide fibers, wherein the aramide fibers are present as short-cut, random fibers or flat textile materials and are treated with an agent that contains at least one hydrophilic fluid.Type: GrantFiled: January 30, 2002Date of Patent: December 7, 2004Assignee: Teijin Twaron GmbHInventor: Michael H. Schmitt
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Patent number: 6792843Abstract: A composite material for armor plating with improved multihit behavior includes at least: a front layer, facing the impact side and mounted on a first sub-layer, the front layer including a plurality of neighboring front-layer segments with form-fit contact between adjacent segments; a rear layer facing away from the impact side; and a supporting layer disposed between the front and rear layers. The supporting layer includes a plurality of supporting-layer segments, which present a surface parallel to the front layer whose area is the same as or less than the area of the front-layer segments parallel to the front layer.Type: GrantFiled: November 12, 2002Date of Patent: September 21, 2004Assignee: Teijin Twaron GmbHInventors: Michael Mohr, Carsten Geitz, Jorg Wintersieg
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Publication number: 20040142617Abstract: A method for producing a hydrophobically finished aramid fabric includes at leastType: ApplicationFiled: September 8, 2003Publication date: July 22, 2004Applicant: TEIJIN TWARON GmbHInventors: Christian Kurt Bottger, Rudiger Hartert, Kurt Rainer Stolze, Jan Jager, Henk van de Ven, Peter Gerard Akker
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Publication number: 20040023580Abstract: The invention relates to a fabric having both stab resistant and anti-ballistic properties. The fabric is made of yarn of a weight greater than about 500 dtex, and the fabric has a minimum shrinkage factor of at least about 1% achieved through a densification treatment. The invention further relates to a method of producing a such a fabric having the steps of agitating a fabric made of a yarn of a weight greater than about 500 dtex, substantially removing a spin finish from the fabric before, during or after the agitating step, and drying the fabric.Type: ApplicationFiled: February 4, 2003Publication date: February 5, 2004Applicant: TEIJIN TWARON GMBHInventors: David R. Hand, Rudiger Hartert, Christian Bottger
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Patent number: 6656570Abstract: Protective clothing for protection against puncture injuries is constructed from more than one layer of a fabric coated with hard solids. The hard solids are applied in accordance with abrasives technology. This protective clothing offers equally good protection against both knife- and needle-like puncture implements. For clothing intended to protect against puncture and projectile injuries, a package of 2-20 layers of a fabric coated with hard solids is combined with a package of 6-50 layers of an uncoated aramid woven fabric.Type: GrantFiled: August 8, 2000Date of Patent: December 2, 2003Assignee: Teijin Twaron GmbHInventors: Achim Fels, Christian Bottger, Wolfgang Polligkeit, Steffen Neu, Christoph Klingspor
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Patent number: 6610618Abstract: The invention pertains to a penetration-resistant material having at least a double layer of fabric composed of two layers of woven fabric which are cross-plied at an angle, characterized in that the fabric is composed of a first set of threads having 3.5 to 20 threads/cm and having a linear density of at least 420 dtex, and a second set of threads having 0.5 to 8 threads/cm and having a linear density of at least 50 dtex, with the second set of threads being transverse to the first set of threads, and wherein the ratio of the linear density of the first set of threads to the linear density of the second set of threads is >4.2, more preferably >7.5. In a preferred embodiment, the first set of threads is warp threads made of p-aramid yarn and the second set of threads is weft threads of polyester yarn, and the ratio of the number of threads/cm of the first set to that of the second set is >1.Type: GrantFiled: August 30, 2001Date of Patent: August 26, 2003Assignee: Teijin Twaron GmbHInventors: Christian Bottger, Achim Fels, Barbel Dorloff-Lumpe, Christoph Baumgart
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Publication number: 20020124325Abstract: A procedure for removing a water-insoluble finish from aramide fibers, wherein the aramide fibers are present as short-cut, random fibers or flat textile materials and are treated with an agent that contains at least one hydrophilic fluid.Type: ApplicationFiled: January 30, 2002Publication date: September 12, 2002Applicant: TEIJIN TWARON GMBHInventor: Michael H. Schmitt