Web Material Patents (Class 57/260)
  • Patent number: 9346220
    Abstract: A blend of two partly incompatible polymers is extruded to form a film under conditions such that the alloy in the blend comprises fibrils extending mainly in one direction, the width and thickness of each fibril having a mean lower than 5 ?m, the fibrils being formed of the polymer component having a higher melting point, and the fibrils being surrounded by a matrix of the second polymer, which has a lower coefficient of elasticity. The special morphology is achieved by providing grids in a grid chamber upstream of the exit orifice of the extrusion die, and by sequential hot stretching at a temperature at which the higher melting polymer is at least partly crystalline, and cold stretching, at which both polymers are substantially solid. The second, cold stretching step, is carried out under conditions to give an elongation at break at 20° C. of at least 25%. The films are of particular value for forming crosslaminates having high shock resistance.
    Type: Grant
    Filed: April 26, 2004
    Date of Patent: May 24, 2016
    Inventor: Ole-Bendt Rasmussen
  • Patent number: 8844255
    Abstract: The present invention provides a method for manufacturing a composite yarn of paper, e.g., traditional Korean paper, and a composite yarn manufactured thereby, a method for manufacturing a fabric using the same and an automotive interior material manufactured thereby. More particularly, the present invention relates to a method for manufacturing a composite yarn of traditional Korean paper by using a traditional Korean paper yarn and a synthetic yarn, in which the composite yarn can be used in weaving and knitting, and a method for manufacturing a fabric as an automotive interior material using the same. Accordingly, the present invention provides a method for manufacturing a composite yarn of paper, comprising twisting a tape-type paper yarn, and covering the twisted paper yarn as a ground yarn at least two strands of synthetic yarn as an effect yarn to manufacture a composite yarn of paper of 160˜700 denier.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: September 30, 2014
    Assignee: Hyundai Motor Company
    Inventor: Si Young Ban
  • Patent number: 8635847
    Abstract: An apparatus (5) for twisting a first string (10) of wrapped and spun tobacco leaves into a second string (20) of twisted tobacco leaves defines a first axis (30) extending substantially in the direction of the first string. The apparatus (5) includes a set of rollers (40, 50, 60) each defining a respective circumferential twisting surface (41, 51, 61) for contacting the first string, the circumferential twisting surfaces (41, 51, 61) being arranged so as to substantially confine the first string (10) therebetween so as to rotate the first string (10) and to cause the first string (10) to rotate and be twisted by means of the twisting surfaces (41, 51, 61), and simultaneously to cause the second string (20) to be conveyed along the first axis (30) and out of the apparatus (5).
    Type: Grant
    Filed: May 16, 2008
    Date of Patent: January 28, 2014
    Assignee: House of Oliver Twist A/S
    Inventor: Jorgen Purup Knudsen
  • Patent number: 8578693
    Abstract: The invention relates to a process for making a polyolefin fiber. The process comprises the steps of providing at least one polyolefin tape; twisting or folding the at least one polyolefin tape longitudinally to obtain a precursor fiber and exposing the precursor fiber under tension to a temperature within the melting point range of the polyolefin for a time sufficient to at least partly two or more parts of the precursor fiber. The invention also relates to the fiber obtainable thereby.
    Type: Grant
    Filed: October 5, 2009
    Date of Patent: November 12, 2013
    Assignee: DSM IP Assets B.V.
    Inventor: Roelof R. Marissen
  • Patent number: 8375693
    Abstract: A yarn which is configured by using expanded graphite and polytetrafluoroethylene (PTEE) is provided while improving the yarn so that the expanded graphite functioning as a core member is not exposed and it can be simply produced. The yarn is formed by: forming a base member configured by enveloping an expanded graphite sheet member with a PTEE film, in a state where the PTEE film and the expanded graphite sheet member are aligned with each other in longitudinal direction; and twisting the base member. The base member has an approximately circular sectional shape, and is configured by enveloping the expanded graphite sheet member having a rounded sectional shape with the PTEE film which is rounded in a pipe-like shape.
    Type: Grant
    Filed: August 10, 2009
    Date of Patent: February 19, 2013
    Assignee: Nippon Pillar Packing Co., Ltd.
    Inventors: Takahisa Ueda, Takashi Ikeda, Katsunori Sugita, Masaru Fujiwara, Hiroki Tanabe, Kodai Inoue
  • Patent number: 8316629
    Abstract: The PTFE real twist yarn of the present invention is a PTFE real twist yarn obtained by twisting a polytetrafluoroethylene (PTFE) multi-filament slit yarn. The yarn has a circular cross-section with a circularity in the range of 10/8 to 10/10, where the circularity is expressed by the ratio between the major axis width and the minor axis width, the average fineness of filaments is in the range of 1.5 to 200 dtex, a fineness D is in the range of 50 to 6000 dtex, and a twist coefficient K expressed by Formula (1) is in the range of 10000 to 35000: twist coefficient K=number of twists T×(the fineness D of the PTFE real twist yarn)1/2??(1) where the number of twists T denotes the number of twists per meter and the fineness D is a total fineness.
    Type: Grant
    Filed: June 14, 2010
    Date of Patent: November 27, 2012
    Assignee: Yeu Ming Ti Chemical Industrial Co., Ltd.
    Inventors: James Huang, Chin-Chun Chou, Chin-Cha Chou, Wen-I Kuo, Lei-Ti Huang
  • Publication number: 20110162338
    Abstract: A yarn which is configured by using expanded graphite and PTEE is provided while improving the yarn so that the expanded graphite functioning as a core member is not exposed and it can be simply produced. Therefore, a yarn is formed by: forming a base member 3 configured by enveloping an expanded graphite sheet member 1 with a PTEE film 2, in a state where the PTEE film 2 and the expanded graphite sheet member 1 are aligned with each other in longitudinal direction; and twisting the base member 3. The base member 3 has an approximately circular sectional shape, and is configured by enveloping the expanded graphite sheet member 1 having a rounded sectional shape with the PTEE film 2 which is rounded in a pipe-like shape.
    Type: Application
    Filed: August 10, 2009
    Publication date: July 7, 2011
    Applicant: NIPPON PILLAR PACKING CO., LTD.
    Inventors: Takahisa Ueda, Takashi Ikeda, Katsunori Sugita, Masaru Fujiwara, Hiroki Tanabe, Kodai Inoue
  • Patent number: 7600367
    Abstract: A woven plastic bag fabric and method for weaving using a frame with a moveable upper bar, at least two continuous ribbons of plastic bag, by winding a first ribbon without cutting around a post in the fourth frame side around a long post in the first frame side, then another post in the fourth frame side and around a short post in the first frame side until all posts in the first and fourth frame side are used. The movable bar is raised to form a space. A second ribbon is tied to either a second or third frame side, and the second ribbon is threaded through the space around a right edge post, the moveable bar is lowered to form a second space, the second ribbon is threaded through the second space and the threading and movement is repeated until all edge posts are used forming the fabric.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: October 13, 2009
    Assignee: Re Use Everything Manufacturing, Co.
    Inventors: Diana L Welch, Joan Doreen Welch
  • Patent number: 7353645
    Abstract: A reinforcing member made from a fibrous material and disposed at least on one face of a strip-like expanded graphite to form a strip-like base member. The base member is stranded to be formed as a cord-like member. At this time, one side end edge of the base member is placed on the outer peripheral surface of the cord-like member, and, in the side end edge, the strip-like expanded graphite is more elongated in the width direction than the reinforcing member. The stranding of the base member is applied while the strip-like expanded graphite which is elongated in the width direction is placed on the inner side, and the reinforcing member which is short in the width direction is placed on the outer side. According to the configuration, both the reinforcing member and the strip-like expanded graphite are placed in a spiral manner to be alternately arranged in the axial direction on the outer peripheral surface of the cord-like member.
    Type: Grant
    Filed: September 9, 2003
    Date of Patent: April 8, 2008
    Assignee: Nippon Pillar Packing Co., Ltd.
    Inventors: Takahisa Ueda, Masaru Fujiwara
  • Patent number: 7155892
    Abstract: A gland packing including strip-like expanded graphite is disposed on one face of a sheet-like reinforcing member configured by a fibrous material to form a strip-like base member. The base member is stranded to be formed as a cord-like member. The outside of the cord-like member is covered by a portion of the strip-like expanded graphite, and the whole reinforcing member and the remaining portion of the strip-like expanded graphite are involved in the cord-like member. A large number of openings are formed in the reinforcing member. The strip-like expanded graphite faces the openings. The strip-like expanded graphite is engaged with the openings.
    Type: Grant
    Filed: September 9, 2003
    Date of Patent: January 2, 2007
    Assignee: Nippon Pillar Packing Co., Ltd.
    Inventors: Takahisa Ueda, Masaru Fujiwara
  • Patent number: 6958187
    Abstract: High strength polyethylene fibers and their applications, for example, chopped fibers, ropes, nets, ballistic materials or items, protective gloves, fiber reinforced concrete products, helmets, and other products obtained therefrom, in which the fiber is characterized in that: it contains a high molecular weight polyethylene consisting essentially of a repeating unit of ethylene; it has an intrinsic viscosity number of 5 or larger and an average strength of 22 cN/dtex or higher; and the measurement of the fiber by differential scanning calorimetry (DSC) exhibits a temperature-increasing DCS curve having at least one endothermic peak over a temperature region of 140° C. to 148° C. (on the low temperature side) and at least one endothermic peak over a temperature region of 148° C.
    Type: Grant
    Filed: April 2, 2003
    Date of Patent: October 25, 2005
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Yasuo Ohta, Godo Sakamoto, Tadayo Miyasaka, Takayoshi Okano, Junichi Nakahashi, Yukihiro Nomura, Takuya Konishi
  • Patent number: 5791020
    Abstract: An elastic band for securing an object for transport is comprised of a stretchable sheet exhibiting an elongation limited to an elastic range of the sheet. The sheets is transformed to a string-like or band-like elastic strap exhibiting deformations extending substantially in longitudinal direction of the sheet. The strap is wrapped around the object in snug fits as a result of a return force generated by the elastic elongation. The deformations are imparted through suitably puckering, rolling or twisting the sheet.
    Type: Grant
    Filed: July 3, 1996
    Date of Patent: August 11, 1998
    Assignee: Firma Sanpack Lagertechnik GmbH
    Inventor: Hans-Peter Eichstadt
  • Patent number: 5778652
    Abstract: A metal sheath for surrounding a cable core consists of at least one shell part which is formed from a spring-hard steel strip. The shell part is formed by a method of bending a spring-hard steel strip into a shell having a transverse cross-section of at least a semi-circle so that after release, the shell springs back to the desired diameter for receiving the cable core.
    Type: Grant
    Filed: June 26, 1996
    Date of Patent: July 14, 1998
    Assignee: Siemens Aktiengesellschaft
    Inventor: Dieter Kunze
  • Patent number: 5775084
    Abstract: Recyclable string and methods and apparatus for making the same are disclosed. The recyclable string is made by the disclosed apparatus from a strip of recyclable stretch film by twisting the stretch film about its longitudinal axis and stretching the twisted stretch film along its longitudinal axis, preventing the untwisting of the twisted stretch film. In a second version the srip is not twisted.
    Type: Grant
    Filed: April 26, 1996
    Date of Patent: July 7, 1998
    Assignee: Robert K. Bernhardy
    Inventor: Robert K. Bernhardy
  • Patent number: 5741587
    Abstract: A direct melt spinning process for providing high filament count fine filament polyester yarns having excellent mechanical quality and along-end uniformity and unitary interlace by spinning all the filaments of such high filament count yarn from a single spinneret. Such yarns may be used as direct-use yarns and as draw-feed yarns for preparing drawn flat yarns and draw-textured yarns.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: April 21, 1998
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: David George Bennie, Robert James Collins, Hans Rudolf Edward Frankfort, Stephen Buckner Johnson, Benjamin Hughes Knox, Joe Forrest London, Jr., Elmer Edwin Most, Jr., Girish Anant Pai
  • Patent number: 5682655
    Abstract: A furred thread is produced by a sequence of steps, which include impregnating a fur material with moisture. The material is stretched in a stream direction of hairs of the material and dried. The material is cut in the stream direction of the hair to produce a fur strip, which is impregnated with moisture, twisted in a manner such that its hair side appears outwardly while the strip is stretched in its longitudinal direction, and dried to produce the furred thread.
    Type: Grant
    Filed: February 22, 1996
    Date of Patent: November 4, 1997
    Assignee: Kabushiki-Kaisha Rozason
    Inventor: Yukio Yoshioka
  • Patent number: 5669214
    Abstract: To reduce elongation of a stranded wire rope or cable (1), particularly when running over sheaves, or pulleys, and decrease vibration as well as operating noise while increasing operating speed, insert elements (4) are placed between adjacent rope elements (2). The insert elements, in cross-section, have an intermediate portion part (7) with oppositely positioned concave recesses (9), a head portion (6) which can be widened to the circumferential diameter of the rope or cable (1) and a widened base portion (8). The base portions (8) are not interconnected. The insert ribbons or tapes are preferably formed along their length with slits (11) extending from the head portion (6) to about the middle of the ribbon or tape to allow for bending of the rope, and the inserts about circular pulleys.
    Type: Grant
    Filed: October 2, 1995
    Date of Patent: September 23, 1997
    Assignee: Fatzer AG
    Inventor: Georg A. Kopanakis
  • Patent number: 5534334
    Abstract: The present invention relates to base fabrics for ink ribbons used in impact printers, not allowing the graphic spots to occur.They are woven fabrics composed of synthetic multi-filament yarns, the warp of which are 30 to 50 D in yarn thickness and 330 T/M to 600 T/M in the number of twist.
    Type: Grant
    Filed: May 3, 1994
    Date of Patent: July 9, 1996
    Assignee: Toray Industries, Inc.
    Inventors: Kenji Hama, Nobutake Hiroe, Junko Kuroda
  • Patent number: 5167113
    Abstract: In a fur fabric having a fur yarn woven into a base fabric: a fur strip having a furry and a bare skin side is helically coiled around a rodlike mold form in a condition in which the furry side is disposed outside the form so as to form an assembly; the form is removed from the assembly to form a tubular roving which is further spun to form a yarn which is folded double to have its halves self-spun together under the influence of resilient shrinking effort of the halves, so as to form a completed single yarn which is woven into the base fabric in a condition in which a first one of the completed yarns is helically coiled clockwise around a first one of the warp threads, and a second yarn adjacent to the first one of the yarns is helically coiled counterclockwise around a second warp thread adjacent to the first one of the warp threads, so as to have adjacent ones of the completed yarns be opposite in coiling direction.
    Type: Grant
    Filed: February 13, 1992
    Date of Patent: December 1, 1992
    Inventor: Yukio Yoshioka
  • Patent number: 4801503
    Abstract: A polyhexamethylene adipamide yarn characterized by a tenacity greater than 4.5 g/den., an elongation of from 25-40% constituent ribbon cross-section filaments having a length to width ratio greater than 3 is disclosed. Also disclosed is the process for making such yarn including a delayed quench and a two-stage hot chest draw.
    Type: Grant
    Filed: May 5, 1987
    Date of Patent: January 31, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Uel D. Jennings
  • Patent number: 4697407
    Abstract: A thread-like continuous retroreflective fiber and method of making same, comprising the steps of laminating a thin film of retroreflective material to a supporting polyester film, and then slitting the laminate to form narrow strips of retroreflective material having sufficient strength to be combined with other fibers to form a composite yarn having retroreflective characteristics, which composite yarn may then be woven, knitted, or spun to provide a fabric having retroreflective characteristics.
    Type: Grant
    Filed: November 6, 1985
    Date of Patent: October 6, 1987
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Allan Wasserman
  • Patent number: 4689944
    Abstract: A flat yarn wherein fibers composing a yarn are bonded to each other substantially in a side-by-side manner to form a tape-like flat body and the flat body has a plurality of gear-crimped portions across a width thereof. There may be a plurality of reverse points at which front and back surfaces of the yarn replace each other. The points are twisted in the same direction and positioned at random intervals from each other. The gear-crimped portions are arranged randomly in the lengthwise direction of the yarn. The fibers composing the yarn are bonded to each other in an intermittent manner in the lengthwise direction of the yarn. A fabric made from the flat yarn has an aesthetic appearance and soft touch as well as good crease resistance. A method of production for the same is also provided.
    Type: Grant
    Filed: August 26, 1986
    Date of Patent: September 1, 1987
    Assignee: Mitsubishi Rayon Company Ltd.
    Inventors: Masahisa Toki, Seiji Satoh, Yoshiaki Matsui, Kunio Morihata, Toyoji Murata
  • Patent number: 4660363
    Abstract: The invention provides a method for making fur bearing strands from hides of fur bearing animals and a yarn from such strands suitable for producing a fur garment. The yarn has low stretch characteristics by virtue of treatment of the hide portions used to make it. Strands are made from hide portions joined side by side at abutting longitudinal edges and slit transversely of the joined portion. A yarn is made from the strands, which may be joined end to end, by longitudinally twisting them so that the fur is substantially about the exterior thereof.
    Type: Grant
    Filed: April 23, 1986
    Date of Patent: April 28, 1987
    Assignee: Herman S. Krehm
    Inventors: Herman S. Krehm, Jacob Leidner, Malcolm E. Rode
  • Patent number: 4637206
    Abstract: A fur-skin strip material consisting of yarn-like fur-skin strips that are knitted, crochete or woven to form a fabric and the like. The fur-skin strip material is fine, smooth and soft and can be produced in an industrial scale at a lower cost.The yarn-like fur-skin strip is made by cutting a hairy-coated skin of a fur-bearing animal. The skin will be placed, the fur side down, on a supporting device that has numerous needles so that the leather side of the skin will be made substantially flat, enabling only the leather side of the skin to be applied with a laser beam or water jet and thereby cutting the skin uniformly into fine strips of furry material.
    Type: Grant
    Filed: April 9, 1985
    Date of Patent: January 20, 1987
    Inventor: Teruko Suwa
  • Patent number: 4606182
    Abstract: The invention provides a method for making fur bearing strands from hides of fur bearing animals and a yarn from such strands suitable for producing a fur garment. The yarn has low stretch characteristics by virtue of treatment of the hide portions used to make it. Strands are made from hide portions joined side by side at abutting longitudinal edges and slit transversely of the joined portion. A yarn is made from the strands, which may be joined end to end, by longitudinally twisting them so that the fur is substantially about the exterior thereof.
    Type: Grant
    Filed: September 4, 1984
    Date of Patent: August 19, 1986
    Assignee: Herman S. Krehm
    Inventors: Herman S. Krehm, Jacob Leidner, Malcolm E. Rode
  • Patent number: 4527383
    Abstract: A thread is provided which comprises a polymeric material onto which has been fixed a symbol or repeating multiple symbols which are detectable and readable under magnification. When incorporated into garments or garment labels, this thread is useful in identifying the true manufacturer of the goods, and the absence of such threads would help in the detection of counterfeit goods.
    Type: Grant
    Filed: March 28, 1983
    Date of Patent: July 9, 1985
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Wallace K. Bingham
  • Patent number: 4523427
    Abstract: A yarn of a synthetic, fibre-forming, polymeric material comprising a plurality of filaments having a substantially rectangular cross-section and having a birefringence assymetry across the width of the filaments, each of the filaments being twisted about the longitudinal axis of the filament in such a manner that the overall lateral dimension of the twisted filament corresponds substantially with the length of the rectangular cross-section of the filament.
    Type: Grant
    Filed: August 20, 1984
    Date of Patent: June 18, 1985
    Assignee: Imperial Chemical Industries Limited
    Inventor: Paul L. I. Carr
  • Patent number: 4510743
    Abstract: A composite elongated-shaped product is made from two or more synthetic polymer components. The product may be a split-fiber, thread, film or a ribbon-shaped one. One of the polymer components is polypropylene which forms more than 50 percent by weight of the product. At least one other polymer component is distributed in the polypropylene. The composite product contains 65 to 95 percent by weight of polypropylene and 35 to 5 percent by weight of one or more polyesters and/or polyamides. The polyesters are built up of structural units derived from one or more dicarboxylic acids, at least 70 mole % of which are from terephthalic acid. Other structural units are derived from one or more low-molecular weight diols, at least 70 mole % of which are from a diol having the formula HO(CH.sub.2).sub.n OH, where n is a whole number and may be 2, 4 or 6. The polyamides are formed by polycondensation of caprolactam or adipic acid and hexamethylene-1,6-diamine.
    Type: Grant
    Filed: July 2, 1982
    Date of Patent: April 16, 1985
    Assignee: Akzo N.V.
    Inventor: Jan de Kroon
  • Patent number: 4422285
    Abstract: A novel fur yarn is provided and comprises a core of a permanently twisted strand of animal skin and a fluffy exterior consisting of animal hair; the process of making such fur yarn consists in slicing a narrow elongated strand of such fur, twisting this strand, wetting the twisting strand and, then, letting this wet twisted strand to dry so that it may retain its twisted shape; the invention is also concerned with an apparatus for making such fur yarn.
    Type: Grant
    Filed: October 28, 1981
    Date of Patent: December 27, 1983
    Inventor: Gabriel Rol
  • Patent number: 4387555
    Abstract: Thread consisting of three polymer strands twisted in one direction, each strand being wrapped with a metallic strip wound in the other direction, the strands and strip being covered with an elastomer sheath.
    Type: Grant
    Filed: September 28, 1981
    Date of Patent: June 14, 1983
    Assignee: Robinson Thread Company
    Inventor: Stuart A. Robinson
  • Patent number: 4384018
    Abstract: An improved woven synthetic textile fabric is formed by using an entangled combination of a fibrillated slit film yarn and a multi-filament yarn as at least one of the warp and fill members. The fabric is characterized by the look and feel of a jute fabric and may be employed as a woven cloth to manufacture bags, bale wrap, wall covering, drapes and the like or, preferably, to produce secondary backing fabric for tufted carpets which exhibits enhanced adhesion characteristics as compared to prior art synthetic secondary backing materials.
    Type: Grant
    Filed: January 25, 1982
    Date of Patent: May 17, 1983
    Assignee: Wayn-Tex Inc.
    Inventors: Donald Caswell, David J. Stout
  • Patent number: 4237684
    Abstract: A rope comprising at least two strips of woven fabric, each said strip having wefts projecting from the woven edge thereof and said strips being twisted together so that the woven parts thereof form a core with the projecting wefts extending substantially radially outwardly from the core.
    Type: Grant
    Filed: February 5, 1979
    Date of Patent: December 9, 1980
    Assignee: Bonas Brothers Limited
    Inventor: William J. Hilton
  • Patent number: 4233808
    Abstract: A twine suitable for tying tobacco leaves together and consisting essentially of stalks and/or leaf stems of tobacco plants.
    Type: Grant
    Filed: April 18, 1979
    Date of Patent: November 18, 1980
    Inventor: Edward T. Gieske, Jr.
  • Patent number: 4216645
    Abstract: An oblong cylindrical body such as an electrical or optical cable or a pipe having a concentric armour of spaced wires is provided with one or more binder tapes being provided with indentations such as corrugations or depressions in all or some of the spaces between the wires. The indentations may be produced by means of rollers having a surface in accordance with the desired indentations. The indentations may be produced before or after the application of the binder tape.
    Type: Grant
    Filed: May 31, 1978
    Date of Patent: August 12, 1980
    Assignee: Aktieselskabet Nordiske Kabel-OG Traadfabriker
    Inventor: Axel Andersen
  • Patent number: 4187669
    Abstract: Knitting material for handicraft or mechanical knitting operations which comprises a fine tape comprised of a non-woven fabric prepared by the spun-bond process, said tape having been obtained by slitting said non-woven fabric, said tape having a weight unit per area of not more than 30 g/m.sup.2 and having from 2 to 20 turns per one meter lengthwise.
    Type: Grant
    Filed: January 26, 1978
    Date of Patent: February 12, 1980
    Assignee: Hamanaka Kabushiki Kaisha
    Inventor: Rikio Hamanaka
  • Patent number: 4179875
    Abstract: A low denier, high tenacity poly(ethylene terephthalate) fibrillated tape yarn particularly suited for conversion into a sewing thread which exhibits excellent sewing performance is produced by intimately mixing poly(ethylene terephthalate) polymer with from about 0.1 to 20 percent polypropylene based on the weight of poly(ethylene terephthalate), extruding the polymer mixture in the form of a tape through a slit die having a modified entry port wherein the depth of the slit is greater at both ends than at the middle, at a melt draw down of from about 26:1 to about 75:1, quenching said tape, hot drawing said tape in two stages wherein said tape is initially hot drawn to a draw ratio of from about 3.3 to about 4.2 while being subjected to a temperature of from about 80 to about 140 degree centigrade, thereafter hot drawing to a total draw ratio of about 5.0 while heated to a temperature about 160 degrees and thereafter subjecting the tape to fibrillation.
    Type: Grant
    Filed: June 14, 1978
    Date of Patent: December 25, 1979
    Assignee: Fiber Industries, Inc.
    Inventor: John D. Gibbon
  • Patent number: 4168603
    Abstract: At least one plastic sheeting element which is oriented at least monoaxially and at least in part in a direction which differs appreciably from the longitudinal direction of the sheeting element is twisted to form a string for a ball-striking implement.
    Type: Grant
    Filed: February 10, 1978
    Date of Patent: September 25, 1979
    Assignee: Fischer Gesellschaft m.b.H.
    Inventors: Gerhard Reich, Walter Stephan
  • Patent number: 4166355
    Abstract: A cable for the reinforcement of plastic and elastic articles, such as conveyor belts and the like, is provided which includes a plurality of metal strands which are twisted to form a cable and a non-metallic insert which is disposed between the surfaces of the strands which oppose each other so as to prevent the strands from contacting each other, while leaving the surfaces of the strands which define the outside diameter of the cable exposed. A method and device for producing the cable is also provided.
    Type: Grant
    Filed: June 9, 1978
    Date of Patent: September 4, 1979
    Inventor: Friedbert Gross