JP6902389B2 - ゴム組成物の製造方法およびタイヤの製造方法 - Google Patents
ゴム組成物の製造方法およびタイヤの製造方法 Download PDFInfo
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- B29B7/00—Mixing; Kneading
- B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
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- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/40—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
- B29B7/42—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/60—Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material
- B29B7/603—Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material in measured doses, e.g. proportioning of several materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
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- B29B7/726—Measuring properties of mixture, e.g. temperature or density
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29B7/00—Mixing; Kneading
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- B29B7/823—Temperature control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/82—Heating or cooling
- B29B7/826—Apparatus therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/88—Adding charges, i.e. additives
- B29B7/94—Liquid charges
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/29—Feeding the extrusion material to the extruder in liquid form
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/297—Feeding the extrusion material to the extruder at several locations, e.g. using several hoppers or using a separate additive feeding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/203—Solid polymers with solid and/or liquid additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L21/00—Compositions of unspecified rubbers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/06—Copolymers with styrene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2021/00—Use of unspecified rubbers as moulding material
- B29K2021/006—Thermosetting elastomers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2309/00—Characterised by the use of homopolymers or copolymers of conjugated diene hydrocarbons
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2309/00—Characterised by the use of homopolymers or copolymers of conjugated diene hydrocarbons
- C08J2309/06—Copolymers with styrene
Description
ここからは、実施形態1で本開示を説明する。まず、連続式混練機5を説明する。
図1に示す連続式混練機5において、第1領域522の全セグメント(セグメント521a、521b、521c、521d)と、第2領域523の全セグメント(セグメント521e、521f、521g)とを、表1に示す温調温度に設定した。連続式混練機5に、スチレンブタジエンゴム、ポリブタジエンゴム、シリカ、シランカップリング剤(デグサ社製の「Si75」)、オイルを供給し、第1領域522と第2領域523とで混練し、硫黄添加前ゴムを得た。混練中、第1領域522と第2領域523とにおいてゴム温度を測定した。硫黄添加前ゴムと硫黄と加硫促進剤とをバンバリーミキサーで混練りし、未加硫ゴムを得た。未加硫ゴムを、160℃で30分間加硫し、加硫ゴムを得た。
連続式混練機5に代えてバンバリーミキサーを使用したこと以外は、実施例1と同じ方法で加硫ゴムを作製した。硫黄添加前ゴムの排出温度は155℃、排出までの混練時間は7分であった。
セグメント521a、521b、521c、・・・、521gそれぞれの温調温度を変更したこと以外は、実施例1と同じ方法で加硫ゴムを作製した。
初期歪み10%、動的歪み2%、周波数50Hz、温度60℃で、東洋精機製粘弾性スペクトロメータで測定した加硫ゴムのtanδ値に基づいて、発熱性能を評価した。比較例1の値を100とした指数で、発熱性能を示した。指数は、小さいほど低発熱性能に優れることを意味する。結果を表1に示す。
加硫ゴムについて、アルファテクノロジーズ製RPA2000を使用し、温度60℃、周波数1.667Hzの条件で、歪を0.5%から45%まで変化させた時の最大せん断力から最小せん断力を引いた値を測定し、比較例1の測定結果を100とした指数で、各例の測定結果を示した。指数が小さいほどフィラーの分散性が良好であることを意味する。結果を表1に示す。
Claims (5)
- 少なくともゴム、シリカおよびシランカップリング剤を連続式混練機で混練する工程と、
前記工程でつくられた混合物を、前記工程より高いゴム温度で混練することでカップリング反応をすすめる工程とを含む、
タイヤの製造方法。 - 少なくとも前記ゴム、前記シリカおよび前記シランカップリング剤を混練する前記工程は、140℃未満のゴム温度で混練する工程である、請求項1に記載のタイヤの製造方法。
- 前記カップリング反応をすすめる前記工程において前記ゴム温度は140℃以上である、請求項1または2に記載のタイヤの製造方法。
- 少なくとも前記ゴム、前記シリカおよび前記シランカップリング剤を混練する前記工程では、前記連続式混練機の第1領域で混練し、
前記カップリング反応をすすめる前記工程では、前記第1領域の下流に位置する、前記連続式混練機の第2領域で前記混合物を混練する、
請求項1〜3のいずれかに記載のタイヤの製造方法。 - 少なくとも前記ゴム、前記シリカおよび前記シランカップリング剤を混練する前記工程で前記混合物を押出す、請求項1〜3のいずれかに記載のタイヤの製造方法。
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PCT/JP2018/012117 WO2018198630A1 (ja) | 2017-04-26 | 2018-03-26 | ゴム組成物の製造方法およびタイヤの製造方法 |
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IT201900020757A1 (it) * | 2019-11-11 | 2021-05-11 | Bridgestone Europe Nv Sa | Apparato e metodo per la produzione di una mescola di gomma impiegata per la fabbricazione di un manufatto in gomma o di uno pneumatico |
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JP4379187B2 (ja) * | 2004-04-20 | 2009-12-09 | Jsr株式会社 | 熱可塑性エラストマー組成物の製造方法 |
JP4595424B2 (ja) * | 2004-07-27 | 2010-12-08 | 横浜ゴム株式会社 | タイヤ用ゴム組成物およびその製造方法 |
US20120065325A1 (en) * | 2009-04-24 | 2012-03-15 | Bridgestone Corporation | Rubber composition and pneumatic tire |
JP6120713B2 (ja) * | 2013-07-23 | 2017-04-26 | 東洋ゴム工業株式会社 | ゴム組成物の製造方法 |
JP6858115B2 (ja) * | 2015-03-03 | 2021-04-14 | 古河電気工業株式会社 | シラン架橋性ゴム組成物及びシラン架橋ゴム成形体の製造方法 |
JP6688634B2 (ja) * | 2015-03-03 | 2020-04-28 | 古河電気工業株式会社 | シラン架橋性ゴム組成物及びシラン架橋ゴム成形体とそれらの製造方法、並びに、シラン架橋ゴム成形品 |
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