MANUFACTURING METHOD OF WET MASTER BATCH AND WET MASTER BATCH MANUFACTURED BY THE METHOD

• Main Author: NAKANISHI KOTA
• Format: Patent
• Language: English; Japanese
• Published: 05.09.2016
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING-UP

PROBLEM TO BE SOLVED: To provide a manufacturing method of a wet master batch making filler dispersibility good in a rubber wet master batch and a rubber composition.SOLUTION: There is provided a manufacturing method of a wet master batch including a manufacturing process of dispersing a filler in water to manufacture a slurry solution, a mixing process for mixing the slurry solution and a rubber latex solution and an agitating process for agitating the slurry solution and the rubber latex solution in a liquid phase with time t (min) from contacting the filler and the rubber latex in the mixing process to initiating agitation in the agitating process and temperature T (°C) of the slurry solution added in the mixing process satisfying following formulae (1) and (2): T<-1.7 t+95 (1); 0≤t≤10 (2).SELECTED DRAWING: None 【課題】ゴムウェットマスターバッチとゴム組成物中での充填剤分散性を良好にするウェットマスターバッチの製造方法を提供する。【解決手段】充填剤を水に分散させてスラリー溶液を製造する製造工程と、スラリー溶液とゴムラテックス溶液とを混合する混合工程と、スラリー溶液と前記ゴムラテックス溶液とを液相で撹拌する撹拌工程とを含み、混合工程で充填剤とゴムラテックスが接触してから、撹拌工程で撹拌が始まるまでの時間ｔ（ｍｉｎ）と、混合工程で添加したスラリー溶液の温度Ｔ（℃）が以下の式（１）、（２）を満たすウェットマスターバッチの製造方法。Ｔ＜−１．７ｔ＋９５・・・（１）０≦ｔ≦１０・・・（２）【選択図】なし