Tire Cord Reinforcement Materials, Per Se Patents (Class 152/451)
  • Patent number: 6971427
    Abstract: A pneumatic tire includes a body having a plurality of main body cords. The tire includes an upper section above the maximum section width and a lower section below the maximum section width. The modulus of the body cords is configured to be larger in the lower section than in the upper section. This modulus ratio decreases the rolling resistance of the tire. The increased modulus in the lower section is achieved by providing intermediate body cords disposed between the main body cords. In another embodiment, the increased modulus is achieved by changing the material and/or size of the cords in the lower section.
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: December 6, 2005
    Assignee: Brodgestone Firestone North American Tire, LLC
    Inventors: Carolyn W. Bernstorf, Jean-Yea Chen, Jie Jin, Masahiro Takayama, Hidetoshi Yokota
  • Patent number: 6962182
    Abstract: A multi-layer cable having an unsaturated outer layer, usable as a reinforcing element for a crown reinforcement of a tire, comprising a core of diameter d0 surrounded by an intermediate layer (C1) of six or seven wires (N=6 or 7) of diameter d1 wound together in a helix at a pitch p1, this layer C1 itself being surrounded by an outer layer (C2) of P wires of diameter d2 wound together in a helix at a pitch p2, P being less by 1 to 3 than the maximum number Pmax of wires which can be wound in one layer about the layer C1, this cable having the following characteristics (d0, d1, d2, p1 and p2 in mm): (i) 0.28?d0<0.50; (ii) 0.25?d1<0.40; (iii) 0.25?d2<0.40; (iv) for N=6: l.10<(d0/d1)<1.40; for N=7: 1.40<(d0/d1)<1.70; (v) 5.3?(d0+d1)<p1<p2<4.7?(d0+2d1+d2); and (vi) the wires of layers C1 and C2 are wound in the same direction of twist.
    Type: Grant
    Filed: July 3, 2003
    Date of Patent: November 8, 2005
    Assignee: Michelin Rechlin et Techerche S.A.
    Inventors: Francois-Jacques Cordonnier, Alain Domingo
  • Patent number: 6959745
    Abstract: A steel cord is composed of three to six steel filaments each having a filament diameter of from 0.25 to 0.45 mm, the three to six steel filaments including shaped filaments and twisted together, wherein the shaped filaments are, before twisted together, coiled to be set in a form of coil having a coil diameter of less than 5 mm and a coil pitch of more than 5 mm, the shaped filaments include at least two kinds of shaped filaments which are different in respect of the form of coil, the shaped filaments are twisted together while the coil diameter is reduced, the elongation of the cord at 50 N load is less than 0.2%, and the cord strength is in a range of from 2500 to 3500 N/sq.mm.
    Type: Grant
    Filed: March 13, 2003
    Date of Patent: November 1, 2005
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Shinichi Miyazaki, Kazumi Yamazaki, Osamu Toda
  • Patent number: 6935008
    Abstract: A method for making a metallic cord made up of one or more metallic wires comprises: making at least two layers of at least two metallic elements including copper and zinc on the surface of a base wire; heating the layers to cause the metallic elements thermodiffusion to transform into a primary alloy layer; making a layer of copper on the primary alloy layer; drawing the wire provided with the primary alloy layer and outer copper layer into a metallic wire through dies so that the outer copper layer is diminished during passing through the dies, and a secondary alloy layer is formed as a result of transformation of the primary alloy layer and the outer copper layer which is caused by frictional heat during passing through the dies.
    Type: Grant
    Filed: September 20, 2002
    Date of Patent: August 30, 2005
    Assignees: Sumitomo Rubber Industries, LTD, Sumitomo Electric Industries, LTD
    Inventors: Shinichi Miyazaki, Osamu Toda, Yuichi Sano
  • Patent number: 6929857
    Abstract: Fiber for reinforcing rubber products, which comprises glass fiber coated with a coating film formed by a treating agent comprising a water-soluble condensate of resorcinol and formaldehyde, a latex of a solid acrylonitrile/butadiene copolymer and a latex of a liquid acrylonitrile/butadiene copolymer.
    Type: Grant
    Filed: March 11, 2002
    Date of Patent: August 16, 2005
    Assignees: Honda Giken Kogyo Kabushiki Kaisha, Asahi Fiber Glass Company, Limited
    Inventors: Shuji Watanabe, Kaoru Shimamura, Koji Hattori, Masayoshi Abe, Kimihiro Ando
  • Patent number: 6902804
    Abstract: The present invention relates to a high tenacity, high modulus and low shrinkage lyocell multifilament yarn suitable for use in tire cords and MRG (mechanical rubber goods). The lyocell multifilament yarn is a cellulose-based fiber for industrial applications, which is produced by dissolving pulp having a degree of polymerization (DPW) of 700-2,000 and preferably 800-1,400, and a ?-cellulose content of more than 90% and preferably more than 92%, in N-methylmorpholine N-oxide (NMMO) hydrate, at a pulp concentration of 5-15% by weight and preferably 8-13% by weight. The lyocell monofilament according to the present invention is characterized by the following stress-strain profile: (1) the lyocell monofilament analyzed after drying is elongated by less than 3.0% and has an initial modulus of 150-400 g/d, when it was subjected to an initial stress of 3.0 g/d; (2) it is elongated by 3.0-7.0% when it was subjected to a stress greater than the initial stress but smaller than 6.
    Type: Grant
    Filed: June 24, 2004
    Date of Patent: June 7, 2005
    Assignee: Hyosung Corporation
    Inventors: Ik-Hyeon Kwon, Soo-Myung Choi, Young-Soo Wang, Sung-Ryong Kim, Jae-Shik Choi, Tae-Jung Lee, Seok-Jong Han
  • Patent number: 6881480
    Abstract: A process for manufacturing continuous polyester filament yarn for technical applications from a polymer over 90% of the chains of which are composed of ethylene terephthalate units, via a one-step spinning process, with the undrawn filaments having a crystallinity smaller than 16% and the yarn being wound at a rate larger than 6000 m/min. The yarn obtained in this fashion is particularly suitable for use as reinforcing material in rubber articles, notably as reinforcing material in pneumatic tires for cars. The polyester filament yarn can be used to make cords of uncommonly high dimensional stability and a unique combination of breaking tenacity, shrinkage, and breaking toughness.
    Type: Grant
    Filed: December 7, 2001
    Date of Patent: April 19, 2005
    Assignee: Diolen Industrial Fibers B.V.
    Inventors: Hendrikus Wilhelmus Jacobus Hofs, Heinrich Johannes Gustav Kiefer, Henricus Hubertus Wilhelmus Feijen, Lambert van Duren, Christiaan Jurriaan Maria van den Heuvel, Michael Henricus Jacobus van den Tweel
  • Patent number: 6863103
    Abstract: A steel cord having a strand construction formed by twisting a plurality of sheath strands each formed by twisting plural filaments around a core strand formed by twisting plural filaments is provided. At least one of the core strand and the sheath strands has a construction of twisting one or more sheath layers each made of plural filaments around a core made of one or plural filaments, and a diameter of a filament constituting an outermost sheath layer is made larger than that of a filament constituting at least one layer located inside thereof, whereby precedent breakage in a part of the filaments is avoided to improve the durability of the steel cord.
    Type: Grant
    Filed: November 10, 2000
    Date of Patent: March 8, 2005
    Assignee: Bridgestone Corporation
    Inventors: Hideki Masubuchi, Yukimasa Fukuda
  • Patent number: 6857458
    Abstract: A strip of tire ply stock is reinforced with steel cords wherein the steel cords are constructed of high strength wire filament having at least a tensile strength of ?2000×D+4400 MPa where D is the filament diameter in mm. Tires are constructed with the ply stock in the belt and/or carcass.
    Type: Grant
    Filed: July 21, 2003
    Date of Patent: February 22, 2005
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Italo Marziale Sinopoli, Charles Elmer Hamiel
  • Patent number: 6855423
    Abstract: The present invention relates to a wrapped cord, to a method of making said wrapped cord, to a method of treating said wrapped cord with an adhesive treatment composition, to the treated wrapped cord obtainable by said method as well as to a reinforced rubber article comprising said treated cord, such as automotive tires.
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: February 15, 2005
    Assignees: Continental AG, Arteva Technologies, S.A.R.L.
    Inventors: Mehmet Sadettin Fidan, Charles Edward Forbes, Chad D. Fisher, Stephan Fredrick Sherriff, Andreas Topp
  • Patent number: 6851463
    Abstract: The present invention provides an improved fiber-reinforced article comprised of at least two plies. Each of the plies comprises (a) rubber and (b) cord made from melt-spinnable, non-metallic, multifilament fibers for which the cord has a twist multiplier of less than or equal to about 375, a stress at 1% strain greater than or equal to about 1.7 grams/denier, and an initial compressive modulus greater than or equal to about 7 grams/denier, and the at least two plies have a fiber orientation angle of greater than or equal to about 23°. The composite is useful as a tire belt in a passenger tire.
    Type: Grant
    Filed: April 8, 1999
    Date of Patent: February 8, 2005
    Assignee: AlliedSignal Inc.
    Inventors: Edward Peter Socci, Young Doo Kwon, Charles Jay Nelson, Thomas Hoyt Golden, Jeffrey Donald Pratt, Uday Bharatkumar Jhaveri
  • Patent number: 6851462
    Abstract: There is disclosed a rubber composition comprising: (A) 100 parts by weight of at least one rubber containing olefinic unsaturation; and (B) 1.5 to 50 phr of a cyclodextrin compound.
    Type: Grant
    Filed: October 7, 2002
    Date of Patent: February 8, 2005
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Uwe Ernst Frank, Francois Kayser
  • Patent number: 6852413
    Abstract: Disclosed is a lyocell multi-filament for a tire cord and a method of producing the same. The method includes i) dissolving mixed powder of cellulose and polyvinyl alcohol in a mixed solvent of N-methyl morpholine N-oxide and water to prepare a dope, ii) extruding the dope using a spinning nozzle including orifices through air gaps into a conical upper coagulation bath to solidify the dope to produce a multi-filament, iii) feeding the multi-filament through a lower coagulation bath to a washing bath, and washing the multi-filament, and iv) drying and oiling the washed multi-filament and winding the resulting multi-filament. At this time, the orifices each have a diameter (D) of 100 to 300 ?m, a length (L) of 200 to 2400 ?m, and a ratio of the length to the diameter (L/D) of 2 to 8, and are spaced apart from each other at intervals of 2.0 to 5.0 mm.
    Type: Grant
    Filed: December 16, 2003
    Date of Patent: February 8, 2005
    Assignee: Hyosung Corporation
    Inventors: Tae-jung Lee, Soo-myung Choi, Young-soo Wang, Seok-jong Han, Cheol Kim, Myung-woo Kim, Ik-hyon Kwon, Sung-ryong Kim, Jae-shik Choi
  • Patent number: 6848487
    Abstract: A pneumatic tire having a rubber component comprised of (A) 100 parts by weight (phr) of a rubber containing olefinic unsaturation; (B) from 0 to 100 phr of a filler selected from carbon black and silica; and (C) from 5 to 50 phr of a starch/plasticizer composite and a rubber gel selected from the group consisting of polybutadiene gel, styrene butadiene gel, acrylonitrile-butadiene gel, chloroprene gel, natural rubber gel, and mixtures thereof, wherein the weight ratio of starch/composite to rubber gel is from about 10:1 to about 1:10.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: February 1, 2005
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Marc Weydert, Georges Marcel Victor Thielen, Stephan Franz Westermann, Filomeno Gennaro Corvasce
  • Patent number: 6837289
    Abstract: A multi-layer cable having an unsaturated outer layer, usable as a reinforcing element for a tire carcass reinforcement, comprising a core of diameter d0 surrounded by an intermediate layer (C1) of four or five wires (M=4 or 5) of diameter d1 wound together in a helix at a pitch p1, this layer C1 itself being surrounded by an outer layer (C2) of N wires of diameter d2 wound together in a helix at a pitch p2, N being less by 1 to 3 than the maximum number Nmax of wires which can be wound in one layer about the layer C1, this cable having the following characteristics (d0, d1, d2, p1 and p2 in mm): 0.08<d0<0.28;??(i) 0.15<d1<0.28;??(ii) 0.12<d2<0.25;??(iii) for M=4: 0.40 <(d0/d1)<0.80;??(iv) for M=5: 0.70<(d0/d1)<1.10; 4.8?(d0+d1)<p1<p2<5.6?(d0+2d1+d2);??(v) the wires of layers C1 and C2 are wound in the same direction of twist.
    Type: Grant
    Filed: June 24, 2002
    Date of Patent: January 4, 2005
    Assignee: Michelin Recherche et Technique, S.A.
    Inventors: Francois-Jacques Cordonnier, Alain Domingo, Henri Barguet, Le Tu Anh Vo
  • Publication number: 20040261928
    Abstract: The present invention is directed to a runflat tire having at least one of its components comprising the radial carcass ply, the underlay, the overlay, the bead inserts or the chippers, reinforced with polyester cords having a polyepoxide disposed on its surface. The polyester cord is formed by first obtaining a cord through twisting together a plurality of polyester yarns, secondly treating the cord with an aqueous dispersion comprising a polyepoxide, and thirdly treating the cord with an aqueous RFL dispersion comprising a resorcinol-formaldehyde resin, a styrene-butadiene copolymer latex, a vinylpyridine-styrene-butadiene terpolymer latex, and a blocked isocyanate.
    Type: Application
    Filed: June 27, 2003
    Publication date: December 30, 2004
    Inventors: Serge Julien Auguste Imhoff, Mustafa Goksoy, Rene Francois Reuter, Yves Donckels, Frank Philpott
  • Patent number: 6829880
    Abstract: A tire for a vehicle wheel, includes a torus-shaped carcass, a tread located on a periphery of the carcass, and a pair of axially-facing side walls ending with beads reinforced with bead wires and respective bead-filling elements for mounting the tire on a corresponding rim. The tire includes rubberized fabrics reinforced with metal reinforcing cords. At least one of the metal reinforcing cords comprises at least two wires helicoidally double-twisted around a longitudinal axis of the metal cord. Further, at least one of the wires is permanently deformed by a substantially-sinusoidal deformation lying in a plane.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: December 14, 2004
    Assignee: Pirelli Pneumatici S.p.A.
    Inventor: Omero Noferi
  • Publication number: 20040226641
    Abstract: A hybrid cord 1 for rubber reinforcement comprises a strand 2 having higher elastic modulus, made of PBO fiber or the like, which is disposed at the center of the cord, and strands 3 having lower elastic modulus, made of glass fiber or the like, which are disposed therearound. The hybrid cord has enough strength and is excellent in flexural fatigue resistance, adhesion property relative to rubber, and dimensional stability. A rubber product employs this hybrid cord 1 for rubber reinforcement.
    Type: Application
    Filed: June 15, 2004
    Publication date: November 18, 2004
    Applicant: NIPPON SHEET GLASS CO., LTD.
    Inventors: Mitsuharu Akiyama, Takeshi Maeda, Yukinari Okuyama
  • Patent number: 6817395
    Abstract: A pneumatic radial ply tire 20 has a tread 24, a carcass 21, and a belt reinforcing structure 40. The carcass 21 has a steel cord reinforced radial ply extending from one annular bead to a second annular bead. The belt reinforcing structure 40 has at least two belt layers 40A, 40B having steel cords 14 with large filaments 17A, 17B, 17C, 17D in the range of 0.3 mm to 0.6 mm in diameter twisted into a 7×7 cord construction.
    Type: Grant
    Filed: July 30, 2002
    Date of Patent: November 16, 2004
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Italo Marziale Sinopoli, Charles Elmer Hamiel, Barry Allen Matrana
  • Publication number: 20040221937
    Abstract: Belt bandage for a vehicle pneumatic tire that includes a ply having strength carriers embedded in an unvulcanized rubber mixture. The strength carriers run essentially parallel to one another. Each strength carrier includes a hybrid cord that has a first twisted yarn having a high modulus of elasticity of at least approximately 25000 N/mm2 and a second twisted yarn having a low modulus of elasticity which is no greater than approximately 15000 N/mm2. The first and second twisted yarns are final-twisted together.
    Type: Application
    Filed: May 7, 2004
    Publication date: November 11, 2004
    Applicant: Continental Aktiengesellschaft
    Inventors: Jorg Dehnert, Gunter Wahl
  • Patent number: 6814116
    Abstract: In a tire is used a rubber-steel cord composite of a steel cord and a rubber composition comprising at least one rubber ingredient and a bismaleimide compound, wherein an amount of the bismaleimide compound is 0.1-5 parts by weight based on 100 parts by weight of the rubber ingredient.
    Type: Grant
    Filed: November 6, 2001
    Date of Patent: November 9, 2004
    Assignee: Bridgestone Corporation
    Inventors: Osamu Uchino, Shun Nakamura
  • Patent number: 6811877
    Abstract: A reinforcing structure designed for handling compression stress states when the structure is molded into a composite. The structure, specifically a wrapped cord with metallic filaments contained therein, is suitable for both compression and tension load forces. The reinforcing structure has a core comprising a plurality of essentially straight, nested filaments arranged in parallel, the filaments forming a line of contact with adjacent filaments that extends along the length of the filaments. Wrapped about the core is at least one helically wound wire.
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: November 2, 2004
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Gary Allen Haislet, George C. Tunis, III, Emmanuel Albert Gooding
  • Patent number: 6808569
    Abstract: The anchoring of the carcass reinforcing elements 1 is assured by circumferential cables 2, with the interposition of a connecting rubber composition 3. The circumferential cable 2 is arranged in several turns forming one or more helices. These circumferential cables have an operational elongation rate Af=Ae+Ap of more than 4%. This operational elongation rate does not include the specific elongation As of the “cable” effect. The maximum stress Rm of the cable 2 is preferably more than 2000 MPa. The cables have undergone a heat treatment which has, in combination, the features of being a recovery annealing treatment and which is carried out directly on cable comprising wires previously separately covered by an adherent coating.
    Type: Grant
    Filed: May 15, 2002
    Date of Patent: October 26, 2004
    Assignee: Sedepro
    Inventors: Pedro Costa Pereira, Jean-Claude Arnaud
  • Patent number: 6805178
    Abstract: A metallic cord is composed of metallic filaments gathered together, the metallic filaments include at least one patterned filament which is, before gathered together, two-dimensionally waved so as to have a wave form defined by plural kinds of cycles different from each other in respect of the wave length and/or wave height. A pneumatic tire includes the metallic cords as its carcass cords.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: October 19, 2004
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Shinichi Miyazaki, Kazumi Yamazaki, Osamu Toda
  • Publication number: 20040203304
    Abstract: A rubberized fabric includes at least one substantially metal-free non-woven web having a plurality of fibers. At least some of these fibers are bonded together. The fibers can be substantially oriented in one or more directions. The fabric also includes at least one elastomeric material at least partially covering the at least one non-woven web. The fabric can be incorporated in various locations in a pneumatic tire, such as in a belt structure. Additionally, a pneumatic tire may include one or more elongated rubberized structures including one or more layers of a non-woven web having a plurality of non-metallic fibers substantially oriented in one or more directions relative to the at least one surface.
    Type: Application
    Filed: May 24, 2004
    Publication date: October 14, 2004
    Inventors: Celine Almonacil, Guido Riva, Alessandro Volpi
  • Patent number: 6766841
    Abstract: A multi-layer cable having an unsaturated outer layer, usable as a reinforcing element for a crown reinforcement of a tire, comprising a core of diameter d0 surrounded by an intermediate layer (C1) of four or five wires (N=4 or 5) of diameter d1 wound together in a helix at a pitch p1, this layer C1 itself being surrounded by an outer layer (C2) of P wires of diameter d2 wound together in a helix at a pitch p2, P being less by 1 to 3 than the maximum number Pmax of wires which can be wound in one layer about the layer C1, this cable having the following characteristics (d0, d1, d2, p1 and p2 in mm): (i) 0.10≦d0<0.50; (ii) 0.25≦d1<0.40; (iii) 0.25≦d2<0.40; (iv) for N=4: 0.40<(d0/d1)<0.80; for N=5: 0.70<(d0/d1)<1.10; (v) 4.8 &pgr;(d0+d1)<p1<p2<5.6&pgr;(d0+2d1+d2); and (vi) the wires of layers C1 and C2 are wound in the same direction of twist.
    Type: Grant
    Filed: July 3, 2003
    Date of Patent: July 27, 2004
    Assignee: Michelin Recherche et Technique, S.A.
    Inventors: Francois-Jacques Cordonnier, Alain Domingo, Henri Barguet
  • Patent number: 6763867
    Abstract: A pneumatic radial tire allowing to improve the high speed endurance and the road noise considerably. The pneumatic radial tire has a carcass layer mounted between a pair of right and left bead portions and a belt layer embedded in the outer peripheral side of the carcass layer in a tread portion, and a belt cover layer comprising fiber cords made of filaments of polyolefin ketone having a structure represented by the following formula (1) is disposed around the outer peripheral side of the belt layer, and an elongation rate of the fiber cords composing the belt cover layer is equal or inferior to 2.5% in the tire; —(CH2—CH2—CO)n—(R—CO)m—  (1) where, 1.05≧(n+m)/n≧1.00, R is an alkylene group having three or more carbons.
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: July 20, 2004
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventor: Yoshiki Kanehira
  • Publication number: 20040123927
    Abstract: A pneumatic tire comprises a tread portion, a pair of sidewall portions, a pair of bead portions, a bead core disposed in each bead portion, a carcass comprising a ply of carcass cords extending between the bead portions through the tread portion and sidewall portions and turned up around the bead core in each bead portion, and an inner liner made of air-impermeable rubber extending on the tire cavity side of the carcass from one of the bead portions to the other. The radially inner end of the inner liner is located radially inside the radially innermost end of the carcass. In a radial region between the radially innermost end of the carcass and the radially outermost end of the bead core, the thickness of the inner liner is not less than 0.15 time but not more than 4.0 times the cross section diameter of the carcass cord.
    Type: Application
    Filed: December 23, 2003
    Publication date: July 1, 2004
    Inventors: Kiyoshi Ueyoko, Minoru Nishi, Kazuki Numata
  • Patent number: 6755226
    Abstract: A composite cord is provided which is simple in manufacture, highly productive, less costly, and improved in rubber penetration. The composite cord has a 1×n construction (n is an integer from 3 to 12) with 2 to 11 metallic filaments and 1 to 5 polymer fibers having a melting point of 50 to 200 degrees twisted together. The pneumatic tire employing this composite cord for its reinforcing element is restricted in rust formation and improved in strength retention.
    Type: Grant
    Filed: February 1, 2001
    Date of Patent: June 29, 2004
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Shinichi Miyazaki, Osamu Toda
  • Publication number: 20040118498
    Abstract: A tyre for a vehicle wheel, includes a torus-shaped carcass, a tread located on a periphery of the carcass, and a pair of axially-facing side walls ending with beads reinforced with bead wires and respective bead-filling elements for mounting the tyre on a corresponding rim. The tyre includes rubberized fabrics reinforced with metal reinforcing cords. At least one of the metal reinforcing cords comprises at least two wires helicoidally double-twisted around a longitudinal axis of the metal cord. Further, at least one of the wires is permanently deformed by a substantially-sinusoidal deformation lying in a plane.
    Type: Application
    Filed: November 25, 2003
    Publication date: June 24, 2004
    Applicant: PIRELLI PNEUMATICI S.p.A.
    Inventor: Omero Noferi
  • Patent number: 6748989
    Abstract: A multi-layer cable having an unsaturated outer layer, comprising a core (C0) of diameter d0 surrounded by an intermediate layer (C1) of six or seven wires (M=6 or 7) of diameter d1 wound together in a helix at a pitch p1, surrounded by an outer layer (C2) of N wires of diameter d2 wound together in a helix at a pitch p2, N being less by 1 to 3 than the maximum number Nmax of wires which can be wound in one layer about the layer C1, this cable has the following characteristics (d0, d1, d2, p1 and p2 in mm): (i) 0.14<d0<0.28; (ii) 0.12<d1<0.25; (iii) 0.12<d2<0.25; (iv) for M=6: 1.10<(d0/d1)<1.40; for M=7: 1.40<(d0/d1)<1.70; (v) 5&pgr;(d0+d1)<p1<p2<5&pgr;(d0+2d1+d2); (vi) the wires of layers C1 and C2 are wound in the same twist direction.
    Type: Grant
    Filed: December 18, 2001
    Date of Patent: June 15, 2004
    Inventors: Francois-Jacques Cordonnier, Alain Domingo
  • Publication number: 20040108038
    Abstract: A multi-layer cable having an unsaturated outer layer, usable as a reinforcing element for a tire carcass reinforcement, comprising a core of diameter d0 surrounded by an intermediate layer (C1) of four or five wires (M=4 or 5) of diameter d1 wound together in a helix at a pitch p1, this layer C1 itself being surrounded by an outer layer (C2) of N wires of diameter d2 wound together in a helix at a pitch p2, N being less by 1 to 3 than the maximum number Nmax of wires which can be wound in one layer about the layer C1, this cable having the following characteristics (d0, d1, d2, p1 and p2 in mm):
    Type: Application
    Filed: June 24, 2002
    Publication date: June 10, 2004
    Inventors: Francois-Jacques Cordonnier, Alain Domingo, Henri Barguet, Le Tu Anh Vo
  • Patent number: 6745806
    Abstract: The invention improves rubber permeability while making a cord diameter compact. A metal cord is constituted by a layered structure having a core comprising totally 6 to 12 filaments sectioned into 1 to 4 filament bundles, and a sheath comprising 8 to 15 filaments arranged around the core. Each of the filament bundles includes a waved filament modeled in a two-dimensional wave shape and a non-waved filament, in a state before being bundled. The core makes the wave of the waved filament three-dimensional within the core by applying torsion to each of the filament bundles.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: June 8, 2004
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Shinichi Miyazaki, Kazumi Yamazaki, Osamu Toda
  • Patent number: 6730393
    Abstract: A polymeric sheet having excellent cut-resistance contains: (A) a polymeric material, and (B) a hard filler distributed in the polymeric material, the hard filler having a Mohs hardness value of at least about 3.0, the hard filler being in the form of particles having an average diameter sufficient to provide cut-resistance properties to the polymeric material but which is no more than about 5 microns. The cut-resistant sheet may be in the form of a conventional sheet, a film, a coating, a composite and the like, and may be used to form cut-resistance articles such as, e.g., protective garments and tires. The cut-resistant sheet may also be laminated onto a textile fabric to form a composite from which articles, e.g., garments, can be formed.
    Type: Grant
    Filed: October 8, 1997
    Date of Patent: May 4, 2004
    Assignee: Honeywell International, Inc.
    Inventors: Ehteridge Odell Oakley, Gregory J. Johnson, Herman Leslie Lanieve
  • Patent number: 6719030
    Abstract: The pneumatic tire has a single carcass ply reinforced with parallel metallic cords, each cord composed of at least one filament having a tensile strength of at least (−2000×D+4400 MPa) ×95%, where D is the filament diameter in millimeters. The turnup portion of the single carcass ply 12 in the bead portion of a pneumatic tire is interposed between the bead core 11 and a toe guard 18, and the radially outer edge of each turnup portion being in contact with the main portion of the carcass ply and extending to an end point 0.5 to 4.0 inches (12.7 to 101.6 mm) radially outward of the bead core. The toe guard 18 has a first and second end and each end is disposed directly adjacent to the carcass ply. The first end 18a of the toe guard is located on the axially inner side of the main portion of the carcass ply at a location about 0.4 to 3.
    Type: Grant
    Filed: September 6, 2002
    Date of Patent: April 13, 2004
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Amit Prakash, Donald Woodrow Gilliam, Gary Edwin Tubb
  • Publication number: 20040060631
    Abstract: A multi-layer cable having an unsaturated outer layer, usable as a reinforcing element for a crown reinforcement of a tire, comprising a core of diameter d0 surrounded by an intermediate layer (C1) of six or seven wires (N=6 or 7) of diameter d1 wound together in a helix at a pitch p1, this layer C1 itself being surrounded by an outer layer (C2) of P wires of diameter d2 wound together in a helix at a pitch p2, P being less by 1 to 3 than the maximum number Pmax of wires which can be wound in one layer about the layer C1, this cable having the following characteristics (d0, d1, d2, p1 and p2 in mm):
    Type: Application
    Filed: July 3, 2003
    Publication date: April 1, 2004
    Inventors: Francois-Jacques Cordonnier, Alain Domingo
  • Publication number: 20040060632
    Abstract: A pneumatic tire comprises a cord-reinforced layer such as carcass, belt, bead reinforcing layer which is made of metallic cords, each metallic cord is made up of six to twelve metallic filaments whose diameter is in a range of from 0.15 to 0.45 mm, the metallic filaments include waved filaments and unwaved filaments, each waved filament is two-dimensionally waved at a wave pitch and wave height before twisted, the wave pitch is in a range of from 5.0 to 35.0 times the diameter of the filament, and the wave height is in a range of from 0.2 to 4.0 times the diameter of the filament, and the metallic filaments are twisted together into the cord at a twist pitch of from 10 to 40 mm so that the two-dimensionally waved filaments are each subjected to a certain rotation around its axial.
    Type: Application
    Filed: July 16, 2003
    Publication date: April 1, 2004
    Applicants: Sumitomo Rubber Industries, Sumitomo Electric Industries, Ltd.
    Inventors: Shinichi Miyazaki, Kazumi Yamazaki, Osamu Toda, Yasuo Sakai
  • Patent number: 6705370
    Abstract: Load Range C or D radial light truck tires have plies reinforced with metallic cords. At least one of the plies has an inch strength of at least 11,500 N/mm2 per in. and is reinforced with 0.32 mm-0.40 mm filament diameter ultra tensile steel cords at 17-24 ends per inch. The ply may be located in any of the tire components such as the belt, carcass, chipper, or chafer.
    Type: Grant
    Filed: December 6, 1999
    Date of Patent: March 16, 2004
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Charles Elmer Hamiel, Italo Marziale Sinopoli, Daniel Ignatius Kowalski, Jr., Ray Allison Young
  • Publication number: 20040045652
    Abstract: A steel cord according to the invention comprises a metal core strand (11) and adjacent layer of steel elements (13). Between metal core strand (11) and adjacent layer of steel elements (13), a polymer layer (16) with a minimum thickness of more than 0.02 mm is provided. These steel cords are to be used to reinforce off-the-road tires or conveyor belts.
    Type: Application
    Filed: May 22, 2003
    Publication date: March 11, 2004
    Inventors: Stijn Vanneste, Steven Wostyn, Niko De Rore, Dirk Meersschaut
  • Patent number: 6701989
    Abstract: Disclosed is a radial tire for an automobile, in which lyocell having a dry/wet tenacity ratio S1/S2 of 1.2 to 1.6, a tensile strength at high temperature/a tensile strength at room temperature ratio S3/S4 of more than 0.8, and a shrinkage E of less than 0.01 is applied to a carcass part, thereby a resistance to fatigue and dimensional stability in running of a tire are improved.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: March 9, 2004
    Assignee: Hyosung Corporation
    Inventors: Soo-myung Choi, Cheol Kim
  • Publication number: 20040043213
    Abstract: 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: Application
    Filed: June 13, 2003
    Publication date: March 4, 2004
    Applicant: Sovoutri Societe Voultaine De Transformes Industriels
    Inventor: Corinne Tonon
  • Patent number: 6695026
    Abstract: A pneumatic tire comprises a tread reinforcing belt made of metallic cords, each of the metallic cords is made up of six to twelve metallic filaments whose diameter is not less than 0.15 mm but less than 0.25 mm, the six to twelve metallic filaments are grouped into a plurality of bunches each including two to four filaments, the filaments of each bunch are twisted together at a first twisting pitch, the bunches are twisted together into the cord at a final twist pitch Pc of from 10 to 40 mm, the first twisting pitch is more than the final twist pitch, and the bunches each include at least one waved filament which is two-dimensionally waved at wave pitches Pw in a range of from 5 to 30 times the diameter (d) of the filament and a wave height (h) in a range of from 0.2 to 3.0 times the diameter (d).
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: February 24, 2004
    Assignees: Sumitomo Rubber Industries, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Shinichi Miyazaki, Kazumi Yamazaki, Osamu Toda, Yasuo Sakai
  • Patent number: 6691758
    Abstract: A strip of tire ply stock is reinforced with steel cords wherein the steel cords are constructed of high strength wire filament having at least a tensile strength of −2000×D+4400 MPa where D is the filament diameter in mm. Tires are constructed with the ply stock in the belt and/or carcass.
    Type: Grant
    Filed: April 16, 2001
    Date of Patent: February 17, 2004
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Dong Kwang Kim, Amit Prakash
  • Publication number: 20040025997
    Abstract: A first aspect of the invention is a pneumatic tire comprising a radial carcass 5 of at least one carcass ply comprised of a main body portion 3a and a turnup portion 3b, and a reinforcing member 7 comprised of at least two reinforcing layers, in which at least two reinforcing layers 6a, 6b among reinforcing layers 6a, 6b, 6c constituting the reinforcing member 7 are cross reinforcing layers 21 arranged so as to envelop at least the turnup portion of the radial carcass 5 and cross cords of these layers with each other, and outer ends 14a, 14b of the reinforcing layers 6a, 6b constituting the cross reinforcing layers 21 and located outward from the turnup portion 3b of the radial carcass 5 in the widthwise direction of the tire are outward from an outer end 13 of the turnup portion 3b of the radial carcass 5 in the radial direction of the tire, and the cords constituting each of the reinforcing layers 6a, 6b, 6c are cords having given properties, and a crossing angle a between cords of adjacent reinforcing lay
    Type: Application
    Filed: May 7, 2003
    Publication date: February 12, 2004
    Inventor: Yoshiyuki Waki
  • Publication number: 20040020578
    Abstract: A pneumatic radial ply tire 20 has a tread 24, a carcass 21, and a belt reinforcing structure 40. The carcass 21 has a steel cord reinforced radial ply extending from one annular bead to a second annular bead. The belt reinforcing structure 40 has at least two belt layers 40A, 40B having steel cords 14 with large filaments 17A, 17B, 17C, 17D in the range of 0.3 mm to 0.6 mm in diameter twisted into a 7×7 cord construction.
    Type: Application
    Filed: July 30, 2002
    Publication date: February 5, 2004
    Inventors: Italo Marziale Sinopoli, Charles Elmer Hamiel, Barry Allen Matrana
  • Publication number: 20040016497
    Abstract: A strip of tire ply stock is reinforced with steel cords wherein the steel cords are constructed of high strength wire filament having at least a tensile strength of −2000×D+4400 MPa where D is the filament diameter in mm. Tires are constructed with the ply stock in the belt and/or carcass.
    Type: Application
    Filed: July 21, 2003
    Publication date: January 29, 2004
    Applicant: The Goodyear Tire & Rubber Company
    Inventors: John Gomer Morgan, Kenneth Joseph Palmer, Amit Prakash, Michael Edward Putinski, Italo Marziale Sinopoli, Charles Elmer Hamiel, Dong Kwang Kim, Kenneth Michael Kot, Jeffrey Todd Smith
  • Patent number: 6667110
    Abstract: A hybrid steel cord and method of making such cord which includes, in contact with one or more carbon steel wire(s), at least one stainless steel wire whose microstructure contains less than 20% of martensite (% by volume). Articles made of plastic and/or rubber, in particular tire envelopes or the carcass reinforcement plies of such envelopes embodying such cords.
    Type: Grant
    Filed: September 13, 1999
    Date of Patent: December 23, 2003
    Assignee: Compagnie Générale des Establissements Michelin - Michelin & Cie
    Inventors: François-Jacques Cordonnier, Eric Depraetere
  • Patent number: 6664328
    Abstract: This invention discloses a rubbery polymer which is comprised of repeat units that are derived from (1) at least one conjugated diolefin monomer, and (2) at least one functionalized monomer having the structural formula: wherein R represents an alkyl group containing from 1 to about 10 carbon atoms or a hydrogen atom, and wherein R1 and R2 can be the same or different and represent hydrogen atoms or a moiety of the structural formula: wherein the R3 groups in repeat units and in different repeat units can be the same or different and represent hydrogen atoms or alkyl groups containing from 1 to about 4 carbon atoms, wherein n and x represents integers from 1 to about 10, with the proviso that R1 and R2 can not both be hydrogen atoms.
    Type: Grant
    Filed: June 10, 2003
    Date of Patent: December 16, 2003
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Stephan Rodewald, Steven Kristofer Henning, Brian Earl Burkhart
  • Publication number: 20030221760
    Abstract: A (metal/rubber) composite comprising a rubber matrix reinforced with a metallic body adhering to the rubber matrix by means of an adhesive interphase; the rubber matrix is based on diene elastomer; the metal is a carbon steel, the carbon content of which is between 0.35% and 1.2%; to constitute the adhesive interphase, the carbon steel is coated with a metallic layer bearing aluminium oxides or hydroxides, which itself is covered by an organosilane film providing, as coupling agent, the bond between the aluminium oxides-hydroxides on one hand, and the rubber matrix on the other hand. The invention also relates to articles or semi-finished products made of rubber which are reinforced with or formed by such a composite, in particular tires.
    Type: Application
    Filed: January 28, 2003
    Publication date: December 4, 2003
    Inventors: Bruno Grimberg, Yves Ravoire, Jean-Claude Tardivat, Le Tu Anh Vo
  • Publication number: 20030201044
    Abstract: A pneumatic tire mountable of the rim of a vehicle wheel has a toroidal structure including a pair of beads for receipt on the rim of a vehicle wheel such that the pneumatic tire is secured to the vehicle wheel for rotation therewith. The pneumatic tire also includes a tread band surface at the radially outermost location of the toroidal structure for contacting a surface along which the tire rolls. A plurality of sensor elements are disposed in the tire for sensing at least one operational parameter of the tire, with at least some of the sensor elements being in sensing arrangement with the tread band surface and the sensor elements being operable to permit reading of data concerning any tire operational parameter which is sensed by the sensor elements.
    Type: Application
    Filed: April 23, 2003
    Publication date: October 30, 2003
    Applicant: TUV Automotive GmbH
    Inventor: Bernhard Schick