JP6518266B2 - 多複合体平面補強材 - Google Patents
多複合体平面補強材 Download PDFInfo
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- JP6518266B2 JP6518266B2 JP2016565153A JP2016565153A JP6518266B2 JP 6518266 B2 JP6518266 B2 JP 6518266B2 JP 2016565153 A JP2016565153 A JP 2016565153A JP 2016565153 A JP2016565153 A JP 2016565153A JP 6518266 B2 JP6518266 B2 JP 6518266B2
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- monofilament
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Images
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- 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
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
- B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
- B60C2009/2074—Physical properties or dimension of the belt cord
- B60C2009/2083—Density in width direction
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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
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
- B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
- B60C9/22—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel the plies being arranged with all cords disposed along the circumference of the tyre
- B60C2009/2214—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel the plies being arranged with all cords disposed along the circumference of the tyre characterised by the materials of the zero degree ply cords
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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
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
- B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
- B60C9/22—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel the plies being arranged with all cords disposed along the circumference of the tyre
- B60C2009/2238—Physical properties or dimensions of the ply coating rubber
- B60C2009/2247—Thickness
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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
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
- B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
- B60C9/22—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel the plies being arranged with all cords disposed along the circumference of the tyre
- B60C2009/2252—Physical properties or dimension of the zero degree ply cords
- B60C2009/2257—Diameters of the cords; Linear density thereof
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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
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
- B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
- B60C9/22—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel the plies being arranged with all cords disposed along the circumference of the tyre
- B60C2009/2252—Physical properties or dimension of the zero degree ply cords
- B60C2009/2266—Density of the cords in width direction
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2101/00—Inorganic fibres
- D10B2101/02—Inorganic fibres based on oxides or oxide ceramics, e.g. silicates
- D10B2101/06—Glass
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Reinforced Plastic Materials (AREA)
- Laminated Bodies (AREA)
- Ropes Or Cables (AREA)
Description
本発明の分野は、特に空気式または非空気式タイプの車両タイヤのようなゴム物品を補強するのに使用することのできる複合補強材および多層ラミネートの分野である。
タイヤの設計者は、長い間、これらタイヤの重量を低下させこと、さらにまた、何らかの腐蝕問題を改善することを目的として、通常の金属ワイヤーまたはコードを有利に且つ有効に置換え得る低密度繊維または複合体タイプの“補強材”(細長補強要素)を探索している。
今回、調査研究の継続中に、本出願法人は、複合モノフィラメントをベースとし、圧縮、曲げ中のまたは横剪断下においてのその性質が、従来技術の複合モノフィラメントの性質と対比して、有意に改良されている新規な補強材を見出した。
・X方向に沿って配向させ、Tg1で示すガラス転移温度が70℃よりも高い熱硬化樹脂(102)中に埋込まれた無機材料のフィラメント(101)を含む複合体材料製の複数のモノフィラメント(10、20);
・熱可塑性材料の層(12)内にコーティングされているこの複数のモノフィラメント。
本出願においては、特に明確に断らない限り、示す全てのパーセント(%)は、質量パーセントである。
・X方向に沿って配向させ(従って、並べて且つそれらモノフィルターの断面の面Y、Zに対して垂直に配置し)、Tg1で示すガラス転移温度が70℃よりも高い熱硬化樹脂(102)中に埋込まれた無機材料のフィラメント(101)を含む複合体材料製の複数のモノフィラメント(10);
・熱可塑性材料の層(12)内にコーティングされているこの複数のモノフィラメント。
添付図面2、3および5は、断面において、それぞれ円筒断面(10)または非円筒、例えば、長方形または正方形断面(20)のモノフィラメントをベースとする本発明に従う多複合体ストリップの例(R1、R2またはR3で示す)を極めて略図的に示している。
ERL20で示す上記多複合体ストリップの20℃で測定した縦方向(即ち、X方向の)引張弾性率(ヤング率または初期弾性率)は、好ましくは10GPaよりも高く、特に10GPaと20GPaの間である;この引張弾性率は、さらに好ましくは12GPaよりも高く、特に12GPaと20GPaの間である。
上記各引張機械特性(Ar、ERL20、ERT20およびEM20)は、Instron 4466タイプの引張試験装置(この引張試験装置と一緒に提供されているBLUEHILL‐2ソフトウェア)を使用して、規格ASTM D 638に従い、製造したままの、即ち、サイジングしていない或いはサイジングした(即ち、即使用可能な)或いは補強しているゴム物品から引抜いたストリップまたはモノフィラメントにおいて既知の方法で測定する。測定前に、これらのストリップまたはこれらのモノフィラメントを、事前状態調節(ヨーロッパ規格DIN EN 20139 ni従う標準雰囲気(20±2℃の温度;50±5%の相対湿度)中で少なくとも24時間保存)に供する。試験サンプルは、400mmの初期長さに亘って、100m/分の公称速度において、0.5 cN/texの標準プレテンション(pretension)下に引張応力に供する。
R = E複合体 * I円形断面 = E複合体 * I正方形断面
I円形断面 = π * DM 4/64およびI正方形断面 = a4 /12による
a = DM * (π/6)0.25.
Ec = r / (Rc + r)
σc = Ec * E
・ガラス繊維(フィラメント)の直線配列体を作成し、送り方向に搬送する工程;
・真空室において、上記繊維配列体を真空の作用により脱気する工程;
・真空室の出口において、脱気後、真空下の含浸室に通して上記繊維配列体を液状の熱硬化性樹脂または樹脂組成物で含浸処理して、上記ガラスフィラメントと樹脂を含むプリプレグを得る工程;
・上記プリプレグを、所定の面積と形状の断面を有するサイジングダイに通して、上記プリプレグにモノフィラメントの形状(例えば、円形断面を有するモノフィラメントまたは矩形断面を有するストリップ)を付与する工程;
・上記ダイの下流にて、UV照射室内で、上記樹脂をUV線の作用下に重合させる工程;
・その後、この方法で得られたモノフィラメントを中間保存のために巻取る工程。
・国際特許分類の意義の範囲内においての“ラミネート”または“多層ラミネート”:平坦または非平坦形の、互いに接触させている少なくとも2枚の層を含み、これらの層は、必要に応じて、一緒に接合または結合させなくてもよい任意の製品;“接合”または“結合”なる表現は、特に接着結合による全ての接合または集合化を包含するように広く解釈すべきである;
・“ジエン”ゴム:ジエンモノマーに、即ち、共役型または非共役型いずれかの炭素・炭素二重結合を担持するモノマーに少なくとも1部由来する任意のエラストマー(単一のエラストマーまたはエラストマー混合物) (即ち、ホモポリマーまたはコポリマー)。
GRCモノフィラメント、その後のこれらのGRCモノフィラメントをベースとする本発明に従う多複合体ストリップおよび多層ラミネートの製造並びに空気式タイヤにおける補強要素としてのそれらの使用の例を、以下で説明する。
およそ0.6mmに等しいDM;およそ0.2mmに等しいEm;およそ10mmに等しいER;およそ16mmに等しいLR;およそ0.3mmに等しい"d";およそ180℃に等しいTg1;およそ76℃に等しいTg2;およそ3.8%に等しいAr;およそ14GPaに等しいERL20;およそ1800MPaに等しいERT20;およそ34GPaに等しいEM20;およそ30GPaに等しいE’150;およそ0.92に等しいE’(Tg1-25)/E’20;およそ3.6%に等しい各モノフィラメントの曲げにおける圧縮弾性変形;およそ1350MPaに等しい各モノフィラメントの曲げにおける圧縮破断応力;およそ70%に等しい各モノフィラメント中のガラス繊維の質量含有量;およそ3.6GPaに等しい20℃での上記熱硬化ビニルエステル樹脂の初期引張弾性率;およそ1100MPaに等しい上記PETの初期引張弾性率(20℃における);5%よりも大きい上記PETの弾性伸び(20℃における);10%よりも大きい上記PETの破断点伸び(20℃における)。
Claims (15)
- 3つの主要垂直方向、即ち、軸方向(X)、横方向(Y)および厚み方向(Z)を形成し、Y方向に沿って測定した2mmと100mmの間の幅LRを有し且つZ方向に沿って測定した0.1mmと5mmの間の厚さERを有し、LR/ER比が3よりも高い多複合体ストリップ(R1、R2、R3)の形状を有する平面補強材であって、この多複合体ストリップが少なくとも下記を含むことを特徴とする前記平面補強材:
・X方向に沿って配向させ、Tg1で示すガラス転移温度が70℃よりも高い熱硬化樹脂(102)中に埋込まれた無機材料のフィラメント(101)を含む複合体材料製の複数のモノフィラメント(10、20);
・熱可塑性材料の層(12)内にコーティングされているこの複数のモノフィラメント。 - Tg1が、100℃よりも高い、請求項1記載の補強材。
- Tg2で示す熱可塑性材料(12)のガラス転移温度が、−30℃よりも高い、請求項1または2記載の補強材。
- 20℃で測定した破断点伸び(Ar)が、3.0%以上であり、20℃で測定した軸方向(X方向)引張弾性率(ERL20)が、10GPaよりも高い、請求項1〜3のいずれか1項記載の補強材。
- 20℃で測定した横方向(Y方向)引張弾性率(ERT20)が、300MPaよりも高い、請求項1〜4のいずれか1項記載の補強材。
- 20℃で測定した各モノフィラメントの初期引張弾性率(EM20)が、30GPaよりも高く、150℃でDMTA法によって測定した各モノフィラメントの複素弾性率の実数部(E’150)が、25GPaよりも高い、請求項1〜5のいずれか1項記載の補強材。
- 比E’(Tg1-25)/E’20が、0.85よりも高く、E’20およびE’(Tg1-25)は、それぞれ20℃においておよび(Tg1−25)に等しい℃で表す温度において、DMTAにより測定した各モノフィラメントの複素弾性率の実数部である、請求項1〜6のいずれか1項記載の補強材。
- 各モノフィラメントの曲げにおける圧縮弾性変形が、3.0%よりも高く、各モノフィラメントの曲げにおける圧縮破壊応力が、1000MPaよりも高い、請求項1〜7のいずれか1項記載の補強材。
- 各モノフィラメントのZに沿って測定した厚さ(DM)が、0.05mmと3.0mmの間の厚さであり、各モノフィラメントが、各2本の間で、平均距離“d”によって離されており、比d/DMが0.1と3の間である、請求項1〜8のいずれか1項記載の補強材。
- 前記無機材料が、ガラスであり、前記熱硬化樹脂が、ビニルエステル樹脂である、請求項1〜9のいずれか1項記載の補強材。
- 前記熱可塑性材料が、ポリマーまたはポリマー組成物である、請求項1〜10のいずれか1項記載の補強材。
- 各モノフィラメントを前記補強材の外面において被覆する前記熱可塑性材料の層の最小厚(Em)が、0.05mmと0.5mmの間である、請求項1〜11のいずれか1項記載の補強材。
- 前記補強材の幅LRが、10mmと40mmの間であり;前記補強材の厚さERが、0.15mmと3mmの間である、請求項1〜8のいずれか1項記載の補強材。
- 比LR/ERが、5よりも高い、請求項1〜13のいずれか1項記載の補強材。
- 請求項1〜14のいずれか1項記載の補強材を含むタイヤ。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1453900 | 2014-04-29 | ||
FR1453900A FR3020369B1 (fr) | 2014-04-29 | 2014-04-29 | Renfort plat multi-composite |
PCT/EP2015/058602 WO2015165777A1 (fr) | 2014-04-29 | 2015-04-21 | Renfort plat multi-composite |
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JP2017517429A JP2017517429A (ja) | 2017-06-29 |
JP2017517429A5 JP2017517429A5 (ja) | 2019-05-09 |
JP6518266B2 true JP6518266B2 (ja) | 2019-05-22 |
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JP2016565153A Active JP6518266B2 (ja) | 2014-04-29 | 2015-04-21 | 多複合体平面補強材 |
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US (1) | US10259266B2 (ja) |
EP (1) | EP3137317B1 (ja) |
JP (1) | JP6518266B2 (ja) |
KR (1) | KR102349670B1 (ja) |
CN (1) | CN106457908B (ja) |
FR (1) | FR3020369B1 (ja) |
WO (1) | WO2015165777A1 (ja) |
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JP2018516786A (ja) * | 2015-05-28 | 2018-06-28 | コンパニー ゼネラール デ エタブリッスマン ミシュラン | 多複合体平面補強材 |
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WO2020109722A1 (fr) | 2018-11-30 | 2020-06-04 | Compagnie Generale Des Etablissements Michelin | Matériau multi-composite à base de composite verre-résine |
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FR2978770B1 (fr) | 2011-08-04 | 2013-09-27 | Michelin Soc Tech | Composition adhesive aqueuse a base de polyaldehyde et phloroglucinol |
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FR3015363B1 (fr) | 2013-12-19 | 2016-02-05 | Michelin & Cie | Renfort multi-composite |
-
2014
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2015
- 2015-04-21 CN CN201580022790.6A patent/CN106457908B/zh active Active
- 2015-04-21 WO PCT/EP2015/058602 patent/WO2015165777A1/fr active Application Filing
- 2015-04-21 JP JP2016565153A patent/JP6518266B2/ja active Active
- 2015-04-21 EP EP15721142.6A patent/EP3137317B1/fr active Active
- 2015-04-21 KR KR1020167029874A patent/KR102349670B1/ko active IP Right Grant
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2018516786A (ja) * | 2015-05-28 | 2018-06-28 | コンパニー ゼネラール デ エタブリッスマン ミシュラン | 多複合体平面補強材 |
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EP3137317A1 (fr) | 2017-03-08 |
KR20160147767A (ko) | 2016-12-23 |
JP2017517429A (ja) | 2017-06-29 |
US10259266B2 (en) | 2019-04-16 |
CN106457908B (zh) | 2018-06-05 |
FR3020369B1 (fr) | 2016-05-06 |
CN106457908A (zh) | 2017-02-22 |
KR102349670B1 (ko) | 2022-01-12 |
WO2015165777A1 (fr) | 2015-11-05 |
US20170050468A1 (en) | 2017-02-23 |
EP3137317B1 (fr) | 2018-04-11 |
FR3020369A1 (fr) | 2015-10-30 |
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