WO2008087987A1 - ゴム組成物及びそれを用いた空気入りタイヤ - Google Patents

ゴム組成物及びそれを用いた空気入りタイヤ Download PDF

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Publication number
WO2008087987A1
WO2008087987A1 PCT/JP2008/050448 JP2008050448W WO2008087987A1 WO 2008087987 A1 WO2008087987 A1 WO 2008087987A1 JP 2008050448 W JP2008050448 W JP 2008050448W WO 2008087987 A1 WO2008087987 A1 WO 2008087987A1
Authority
WO
WIPO (PCT)
Prior art keywords
rubber composition
mass
pneumatic tire
parts
rubber
Prior art date
Application number
PCT/JP2008/050448
Other languages
English (en)
French (fr)
Inventor
Toshiyuki Ota
Original Assignee
Bridgestone Corporation
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 Bridgestone Corporation filed Critical Bridgestone Corporation
Priority to CN200880002511XA priority Critical patent/CN101583660B/zh
Priority to KR1020097014649A priority patent/KR20090108030A/ko
Priority to EP08703309A priority patent/EP2105461B1/en
Priority to AT08703309T priority patent/ATE548418T1/de
Priority to RU2009127104/05A priority patent/RU2471826C2/ru
Priority to US12/523,216 priority patent/US20100036006A1/en
Publication of WO2008087987A1 publication Critical patent/WO2008087987A1/ja

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/14Anti-skid inserts, e.g. vulcanised into the tread band
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L21/00Compositions of unspecified rubbers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C1/00Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C1/00Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
    • B60C1/0016Compositions of the tread
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/0041Tyre tread bands; Tread patterns; Anti-skid inserts comprising different tread rubber layers
    • B60C11/005Tyre tread bands; Tread patterns; Anti-skid inserts comprising different tread rubber layers with cap and base layers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0066Use of inorganic compounding ingredients
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0085Use of fibrous compounding ingredients
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
    • C08J9/08Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/34Silicon-containing compounds
    • C08K3/36Silica
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00Use of organic ingredients
    • C08K5/54Silicon-containing compounds
    • C08K5/548Silicon-containing compounds containing sulfur
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00Use of ingredients characterised by shape
    • C08K7/02Fibres or whiskers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2205/00Foams characterised by their properties
    • C08J2205/04Foams characterised by their properties characterised by the foam pores
    • C08J2205/052Closed cells, i.e. more than 50% of the pores are closed
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2321/00Characterised by the use of unspecified rubbers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions 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
    • C08L23/04Homopolymers or copolymers of ethene
    • C08L23/06Polyethene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions 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
    • C08L23/10Homopolymers or copolymers of propene
    • C08L23/12Polypropene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Tires In General (AREA)

Abstract

 本発明は、独立気泡を有し、かつ(A)天然ゴム及びジエン系合成ゴムの中から選ばれる少なくとも一種のゴム成分と、その100質量部に対し、(B)シリカ10~150質量部及び(C)有機繊維を0.02~20質量部含むと共に、(D)下記一般式(I) で表されるシランカップリン剤を、前記(B)成分のシリカに対して1~30質量%の割合で含むゴム組成物であって、ゴム加工時の作業性に優れると共に、氷雪路面でのタイヤの制動・駆動性能(氷上性能)に優れ、耐摩耗性の良好な空気入りタイヤを与えることができるゴム組成物、並びにこのゴム組成物をトレッドに用いてなる前記の性能を有する空気入りタイヤを提供することができる。
PCT/JP2008/050448 2007-01-17 2008-01-16 ゴム組成物及びそれを用いた空気入りタイヤ WO2008087987A1 (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CN200880002511XA CN101583660B (zh) 2007-01-17 2008-01-16 橡胶组合物以及使用该组合物的充气轮胎
KR1020097014649A KR20090108030A (ko) 2007-01-17 2008-01-16 고무 조성물 및 그것을 사용한 공기 주입 타이어
EP08703309A EP2105461B1 (en) 2007-01-17 2008-01-16 Rubber composition and pneumatic tire using the same
AT08703309T ATE548418T1 (de) 2007-01-17 2008-01-16 Kautschukzusammensetzung und luftreifen damit
RU2009127104/05A RU2471826C2 (ru) 2007-01-17 2008-01-16 Каучуковая композиция и пневматическая покрышка
US12/523,216 US20100036006A1 (en) 2007-01-17 2008-01-16 Rubber composition and pneumatic tire using the same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-008339 2007-01-17
JP2007008339A JP5507033B2 (ja) 2007-01-17 2007-01-17 空気入りタイヤ

Publications (1)

Publication Number Publication Date
WO2008087987A1 true WO2008087987A1 (ja) 2008-07-24

Family

ID=39635989

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/050448 WO2008087987A1 (ja) 2007-01-17 2008-01-16 ゴム組成物及びそれを用いた空気入りタイヤ

Country Status (8)

Country Link
US (1) US20100036006A1 (ja)
EP (1) EP2105461B1 (ja)
JP (1) JP5507033B2 (ja)
KR (1) KR20090108030A (ja)
CN (1) CN101583660B (ja)
AT (1) ATE548418T1 (ja)
RU (1) RU2471826C2 (ja)
WO (1) WO2008087987A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2659994C1 (ru) * 2015-04-29 2018-07-04 Пирелли Тайр С.П.А. Вулканизированные эластомерные материалы для компонентов шин, содержащие модифицированные силикатные волокна, а также шины, выполненные из таких материалов

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5557466B2 (ja) * 2009-04-27 2014-07-23 株式会社ブリヂストン ゴム組成物、加硫ゴム及びタイヤ
JP5612271B2 (ja) * 2009-04-27 2014-10-22 株式会社ブリヂストン ゴム組成物、加硫ゴム及びタイヤ
IT1403424B1 (it) * 2010-12-23 2013-10-17 Bridgestone Corp Metodo per la preparazione di una mescola per battistrada
IT1403426B1 (it) * 2010-12-23 2013-10-17 Bridgestone Corp Mescola per battistrada comprendente trialcossimercaptoalchil-silani
IT1403425B1 (it) * 2010-12-23 2013-10-17 Bridgestone Corp Metodo per la preparazione di una mescola per battistrada
EP2821252B1 (en) * 2012-02-29 2017-08-30 Bridgestone Corporation Tire
JP5869956B2 (ja) * 2012-05-24 2016-02-24 株式会社ブリヂストン タイヤ用ゴム組成物
JP5877758B2 (ja) * 2012-05-24 2016-03-08 株式会社ブリヂストン タイヤ用ゴム組成物
US10253163B1 (en) * 2012-06-11 2019-04-09 Bridgestone Corporation Azodicarboxy additives for rubber compositions
JP6097750B2 (ja) 2012-08-08 2017-03-15 株式会社ブリヂストン タイヤ
BR112015015371A2 (pt) * 2012-12-26 2017-07-11 Bridgestone Americas Tire Operations Llc realçador de aparência para composições de borracha com antidegradantes
JP5573938B2 (ja) * 2012-12-28 2014-08-20 横浜ゴム株式会社 建設車両用空気入りタイヤ用ゴム組成物
JP6173078B2 (ja) * 2013-07-08 2017-08-02 住友ゴム工業株式会社 タイヤ用ゴム組成物及び空気入りタイヤ
DE102014209255A1 (de) 2014-05-15 2015-11-19 Continental Reifen Deutschland Gmbh Schwefelvernetzbare Kautschukmischung und Fahrzeugreifen
JP2016079329A (ja) * 2014-10-20 2016-05-16 日本ゼオン株式会社 タイヤ用ゴム組成物、ゴム架橋物およびタイヤ
WO2016072499A1 (ja) * 2014-11-07 2016-05-12 住友ゴム工業株式会社 タイヤ用ゴム組成物の製造方法およびタイヤ
KR101656276B1 (ko) * 2015-07-23 2016-09-09 금호타이어 주식회사 내한성 및 윈터 트랙션이 향상된 타이어 트레드 고무조성물
WO2017104781A1 (en) * 2015-12-17 2017-06-22 Compagnie Generale Des Etablissements Michelin A tire comprising a tread
JP6240731B1 (ja) * 2016-09-30 2017-11-29 住友ゴム工業株式会社 スタッドレスタイヤ用キャップトレッドゴム組成物
JP6240732B1 (ja) * 2016-09-30 2017-11-29 住友ゴム工業株式会社 スタッドレスタイヤ
FR3060587A1 (fr) * 2016-12-20 2018-06-22 Compagnie Generale Des Etablissements Michelin Composition de caoutchouc comprenant une poudrette de caoutchouc specifique
JP7222193B2 (ja) * 2018-07-23 2023-02-15 横浜ゴム株式会社 タイヤ用ゴム組成物およびタイヤ
CN113924335A (zh) * 2019-06-10 2022-01-11 引能仕株式会社 包含硅烷化合物和蛋白质变性剂而成的硅烷偶联剂组合物、以及包含该硅烷偶联剂组合物的橡胶组合物

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0771836A2 (en) 1995-11-06 1997-05-07 Bridgestone Corporation Fiber composite material and pneumatic tire using the same
JPH1171480A (ja) 1997-07-04 1999-03-16 Bridgestone Corp 加硫ゴム及びタイヤ
EP1048691A1 (en) 1999-04-30 2000-11-02 Bridgestone Corporation Rubber composition for tires and pneumatic tire
JP2001233993A (ja) * 2000-02-22 2001-08-28 Bridgestone Corp ゴム組成物、加硫ゴム及びタイヤ
JP2003201371A (ja) 2001-11-02 2003-07-18 Bridgestone Corp ゴム組成物、加硫ゴム、及びタイヤ
JP2004231693A (ja) * 2003-01-28 2004-08-19 Bridgestone Corp 空気入りタイヤ
WO2005049493A1 (ja) * 2003-11-18 2005-06-02 The Yokohama Rubber Co., Ltd. シランカップリング剤処理シリカ及びそれを含むゴム組成物
JP2006131714A (ja) 2004-11-04 2006-05-25 Yokohama Rubber Co Ltd:The タイヤトレッド用ゴム組成物
JP2006232916A (ja) * 2005-02-23 2006-09-07 Yokohama Rubber Co Ltd:The タイヤトレッド用ゴム組成物
JP2006274136A (ja) 2005-03-30 2006-10-12 Bridgestone Corp 空気入りタイヤ

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60133489T2 (de) * 2000-12-20 2009-04-30 Flexsys B.V. Siliciumoxid-gefüllte kautschuke mit einem chinondiimin
ATE446855T1 (de) * 2003-06-24 2009-11-15 Pirelli Fahrzeugreifen mit cap/base-laufstreifen
CN100475693C (zh) * 2003-11-18 2009-04-08 横滨橡胶株式会社 硅烷偶联剂处理二氧化硅及含有其的橡胶组合物
JP4733968B2 (ja) * 2004-11-25 2011-07-27 株式会社ブリヂストン タイヤ用ゴム組成物及びそれを用いた空気入りタイヤ

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0771836A2 (en) 1995-11-06 1997-05-07 Bridgestone Corporation Fiber composite material and pneumatic tire using the same
JPH1171480A (ja) 1997-07-04 1999-03-16 Bridgestone Corp 加硫ゴム及びタイヤ
EP1048691A1 (en) 1999-04-30 2000-11-02 Bridgestone Corporation Rubber composition for tires and pneumatic tire
JP2001233993A (ja) * 2000-02-22 2001-08-28 Bridgestone Corp ゴム組成物、加硫ゴム及びタイヤ
JP2003201371A (ja) 2001-11-02 2003-07-18 Bridgestone Corp ゴム組成物、加硫ゴム、及びタイヤ
JP2004231693A (ja) * 2003-01-28 2004-08-19 Bridgestone Corp 空気入りタイヤ
WO2005049493A1 (ja) * 2003-11-18 2005-06-02 The Yokohama Rubber Co., Ltd. シランカップリング剤処理シリカ及びそれを含むゴム組成物
JP2006131714A (ja) 2004-11-04 2006-05-25 Yokohama Rubber Co Ltd:The タイヤトレッド用ゴム組成物
JP2006232916A (ja) * 2005-02-23 2006-09-07 Yokohama Rubber Co Ltd:The タイヤトレッド用ゴム組成物
JP2006274136A (ja) 2005-03-30 2006-10-12 Bridgestone Corp 空気入りタイヤ

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2659994C1 (ru) * 2015-04-29 2018-07-04 Пирелли Тайр С.П.А. Вулканизированные эластомерные материалы для компонентов шин, содержащие модифицированные силикатные волокна, а также шины, выполненные из таких материалов

Also Published As

Publication number Publication date
US20100036006A1 (en) 2010-02-11
EP2105461B1 (en) 2012-03-07
ATE548418T1 (de) 2012-03-15
EP2105461A1 (en) 2009-09-30
CN101583660B (zh) 2012-05-09
JP5507033B2 (ja) 2014-05-28
KR20090108030A (ko) 2009-10-14
CN101583660A (zh) 2009-11-18
RU2471826C2 (ru) 2013-01-10
JP2008174618A (ja) 2008-07-31
EP2105461A4 (en) 2010-01-20
RU2009127104A (ru) 2011-01-20

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