WIPER BLADE RUBBER

To provide wiper blade rubber that realizes compatibility of high attenuation characteristics effective in preventing noise and excellent low temperature characteristics while reducing environmental burden by restraining use of material derived from fossil fuel and using material derived from non-fo...

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Bibliographische Detailangaben
Hauptverfasser:	KATAGAI YUTO, CHINO TAKANORI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, ORMANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	To provide wiper blade rubber that realizes compatibility of high attenuation characteristics effective in preventing noise and excellent low temperature characteristics while reducing environmental burden by restraining use of material derived from fossil fuel and using material derived from non-fossil fuel.SOLUTION: Wiper blade rubber contains natural rubber and modified natural rubber as rubber components, with a raw material ratio derived from non-fossil fuel being higher than 65%. A ratio (tan δ) of loss elastic modulus/storage elastic modulus in a measurement frequency of 10 Hz as measured using a viscoelasticity measurement method compliant with JIS K 6394:2007 has a local maximum in a range of -15°C to -35°C.SELECTED DRAWING: Figure 1 【課題】化石燃料由来の材料使用を抑え、非化石燃料由来の材料を使用することで環境負荷低減を図るとともに、異音防止に有効な高い減衰特性と優れた低温特性の両立を実現したワイパーブレードゴムを提供する。【解決手段】ゴム成分として天然ゴムと改質天然ゴムとを含み、非化石燃料由来の原材料比率が６５％よりも大きいワイパーブレードゴムであって、ＪＩＳＫ６３９４：２００７に準拠した粘弾性測定法を用い測定周波数１０Ｈｚにおける損失弾性率／貯蔵弾性率の比（ｔａｎδ）が－１５℃～－３５℃の範囲に極大値を有するワイパーブレードゴム。【選択図】図１