FR3090661A3 - Tire tread - Google Patents

Tire tread Download PDF

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Publication number
FR3090661A3
FR3090661A3 FR1873877A FR1873877A FR3090661A3 FR 3090661 A3 FR3090661 A3 FR 3090661A3 FR 1873877 A FR1873877 A FR 1873877A FR 1873877 A FR1873877 A FR 1873877A FR 3090661 A3 FR3090661 A3 FR 3090661A3
Authority
FR
France
Prior art keywords
layer
copolymer
dynamic shear
diene
tread
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
FR1873877A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie Generale des Etablissements Michelin SCA
Original Assignee
Compagnie Generale des Etablissements Michelin SCA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Compagnie Generale des Etablissements Michelin SCA filed Critical Compagnie Generale des Etablissements Michelin SCA
Priority to FR1873877A priority Critical patent/FR3090661A3/en
Priority to FR1900859A priority patent/FR3090657A1/en
Priority to PCT/FR2019/052996 priority patent/WO2020128224A1/en
Publication of FR3090661A3 publication Critical patent/FR3090661A3/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F210/02—Ethene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
    • B60C1/0016—Compositions of the tread
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/0041—Tyre tread bands; Tread patterns; Anti-skid inserts comprising different tread rubber layers
    • B60C11/005—Tyre tread bands; Tread patterns; Anti-skid inserts comprising different tread rubber layers with cap and base layers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/0008—Tyre tread bands; Tread patterns; Anti-skid inserts characterised by the tread rubber
    • B60C2011/0016—Physical properties or dimensions
    • B60C2011/0025—Modulus or tan delta

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

Bande de roulement pour pneumatique Pneumatique ayant une bande de roulement caoutchouteuse comportant une première couche C1 radialement intérieure et une deuxième couche C2 radialement extérieure, les première et deuxième couches étant destinées à être en contact avec un sol de roulage à l’état neuf ou à l’état usé, dans lequel les compositions caoutchouteuses des première couche C1 et deuxième couche C2 comprennent plus de 50 pce d'un copolymère d’éthylène et d’un 1,3-diène, une charge renforçante et un système plastifiant, le 1,3-diène étant le 1,3-butadiène ou l’isoprène et les unités éthylène dans ledit copolymère représentant plus de 50 % en mole de l’ensemble des unités monomères dudit copolymère et dans lequel le rapport K entre le module de cisaillement dynamique de la composition caoutchouteuse de la première couche C1 et le module de cisaillement dynamique de la composition caoutchouteuse de la deuxième couche C2 est supérieur à 1,1, les modules de cisaillement dynamiques étant mesurés à 60°C lors d’un balayage en température à une contrainte imposée de 0,7 MPa et à une fréquence de 10 Hz. Figure pour l’abrégé : Fig. 1Tread for a pneumatic tire having a rubbery tread comprising a first layer C1 radially inside and a second layer C2 radially outside, the first and second layers being intended to be in contact with a running surface in new condition or at the used state, in which the rubber compositions of the first layer C1 and second layer C2 comprise more than 50 phr of a copolymer of ethylene and of a 1,3-diene, a reinforcing filler and a plasticizing system, the 1 , 3-diene being 1,3-butadiene or isoprene and the ethylene units in said copolymer representing more than 50 mol% of all the monomer units of said copolymer and in which the ratio K between the dynamic shear modulus of the rubber composition of the first layer C1 and the dynamic shear modulus of the rubber composition of the second layer C2 is greater than 1.1, the dynamic shear moduli both measured at 60 ° C during a temperature sweep at an imposed stress of 0.7 MPa and at a frequency of 10 Hz. Figure for the abstract: Fig. 1

FR1873877A 2018-12-21 2018-12-21 Tire tread Pending FR3090661A3 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR1873877A FR3090661A3 (en) 2018-12-21 2018-12-21 Tire tread
FR1900859A FR3090657A1 (en) 2018-12-21 2019-01-30 Tire tread
PCT/FR2019/052996 WO2020128224A1 (en) 2018-12-21 2019-12-10 Tread for a tyre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1873877A FR3090661A3 (en) 2018-12-21 2018-12-21 Tire tread

Publications (1)

Publication Number Publication Date
FR3090661A3 true FR3090661A3 (en) 2020-06-26

Family

ID=69467567

Family Applications (2)

Application Number Title Priority Date Filing Date
FR1873877A Pending FR3090661A3 (en) 2018-12-21 2018-12-21 Tire tread
FR1900859A Pending FR3090657A1 (en) 2018-12-21 2019-01-30 Tire tread

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR1900859A Pending FR3090657A1 (en) 2018-12-21 2019-01-30 Tire tread

Country Status (2)

Country Link
FR (2) FR3090661A3 (en)
WO (1) WO2020128224A1 (en)

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6336486B1 (en) 1997-04-04 2002-01-08 Bridgestone Corporation Pneumatic radical tire having cap base tread
FR2799468B1 (en) 1999-10-12 2006-04-28 Michelin Soc Tech CATALYTIC SYSTEM USABLE FOR THE COPOLYMERIZATION OF ETHYLENE AND A CONJUGATE DIENE, PROCESS FOR THE PREPARATION OF THIS CATALYTIC SYSTEM AND OF A COPOLYMER OF ETHYLENE AND A CONJUGATE DIENE
JP5357371B2 (en) 2000-07-31 2013-12-04 コンパニー ゼネラール デ エタブリッスマン ミシュラン Tire tread
FR2823215B1 (en) 2001-04-10 2005-04-08 Michelin Soc Tech TIRE AND TIRE TREAD COMPRISING AS COUPLING AGENT A BIS-ALKOXYSILANE TETRASULFURE
ATE465208T1 (en) 2001-06-28 2010-05-15 Michelin Soc Tech TIRE TREAD REINFORCED BY SILICIC ACID WITH LOW SPECIFIC SURFACE AREA
JP4536375B2 (en) 2001-06-28 2010-09-01 ソシエテ ド テクノロジー ミシュラン Tire tread reinforced with silica with extremely low specific surface area
DE60225300T2 (en) 2001-08-13 2009-02-26 Société de Technologie Michelin VEHICLE COMPOSITION FOR TIRES WITH A SPECIAL SILICONE AS REINFORCING FILLER
AU2002341047B8 (en) 2001-08-13 2006-12-07 Rhodia Chimie Method of preparing silicas, silicas with specific pore-size and/or particle-size distribution and the use thereof, in particular for reinforcing polymers
KR20050101157A (en) 2002-10-16 2005-10-20 소시에떼 드 테크놀로지 미쉐린 Ethylene/butadiene copolymers, catalytic system of producing same and production of said polymers
FR2893029B1 (en) 2005-11-09 2009-01-16 Michelin Soc Tech METALOCENE COMPLEX BOROHYDRIDE OF LANTHANIDE, INCORPORATING CATALYTIC SYSTEM, POLYMERIZATION METHOD USING THE SAME, AND ETHYLENE / BUTADIENE COPOLYMER OBTAINED BY THIS PROCESS
FR2893028B1 (en) 2005-11-09 2008-02-15 Michelin Soc Tech METALOCENE COMPLEX BOROHYDRIDE OF LANTHANIDE, INCORPORATING CATALYTIC SYSTEM, POLYMERIZATION METHOD USING THE SAME, AND ETHYLENE / BUTADIENE COPOLYMER OBTAINED BY THIS PROCESS
FR2969166B1 (en) 2010-12-20 2012-12-21 Michelin Soc Tech RUBBER COMPOSITION COMPRISING A FUNCTIONALIZED THERMOPLASTIC POLYMER
JP5909121B2 (en) 2012-03-07 2016-04-26 株式会社ブリヂストン Rubber composition for tire
FR3001223B1 (en) 2013-01-22 2015-03-06 Michelin & Cie RUBBER COMPOSITION COMPRISING A HIGHLY SATURATED DIENIC ELASTOMER
FR3044662B1 (en) 2015-12-03 2017-12-08 Michelin & Cie PREFORMED CATALYTIC SYSTEM COMPRISING RARE EARTH METALLOCENE
FR3054220A1 (en) 2016-07-25 2018-01-26 Compagnie Generale Des Etablissements Michelin PREFORMED CATALYTIC SYSTEM COMPRISING RARE EARTH METALLOCENE
FR3054221A1 (en) 2016-07-25 2018-01-26 Compagnie Generale Des Etablissements Michelin PREFORMED CATALYTIC SYSTEM COMPRISING RARE EARTH METALLOCENE
FR3059601A3 (en) * 2016-12-02 2018-06-08 Michelin & Cie PNEUMATIC WITH A TREAD WITH CIRCUMFERENTIAL REINFORCING ELEMENTS IN THE UNDERCOAT
FR3060013A1 (en) * 2016-12-08 2018-06-15 Compagnie Generale Des Etablissements Michelin RUBBER COMPOSITION BASED ON POLYISOPRENE EPOXIDE
CN108690167B (en) * 2017-04-11 2021-07-23 中国科学院长春应用化学研究所 Copolymer of ethylene and conjugated diene and preparation method thereof

Also Published As

Publication number Publication date
FR3090657A1 (en) 2020-06-26
WO2020128224A1 (en) 2020-06-25

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