METHOD FOR PRODUCING RUBBER COMPOSITION

To provide a method for producing a rubber composition excellent in dispersibility and dispersion stability of a filler.SOLUTION: The method for producing a rubber composition comprises: a step (i) of mixing a filler, a dispersion solvent, and a rubber latex solution; a step (ii) of coagulating the...

Full description

Saved in:
Bibliographic Details
Main Author KOMIYA YUKI
Format Patent
LanguageEnglish
Japanese
Published 24.06.2019
Subjects
Online AccessGet full text

Cover

Loading…
More Information
Summary:To provide a method for producing a rubber composition excellent in dispersibility and dispersion stability of a filler.SOLUTION: The method for producing a rubber composition comprises: a step (i) of mixing a filler, a dispersion solvent, and a rubber latex solution; a step (ii) of coagulating the filler-containing rubber latex solution to produce a filler-containing rubber coagulum; a step (iii) of dehydrating/drying the filler-containing rubber coagulum to produce a rubber wet master batch; and a step (iv) of adding a rubber compounding agent to the rubber wet master batch and dry-mixing them. In the step (i), a compound represented by formula (I) is added, and then molybdenum sulfide is added.SELECTED DRAWING: None 【課題】充填材の分散性及び分散安定性に優れたゴム組成物の製造方法の提供。【解決手段】充填材、分散溶媒及びゴムラテックス溶液を混合する工程(i)、充填材含有ゴムラテックス溶液を凝固して、充填材含有ゴム凝固物を製造する工程(ii)、充填材含有ゴム凝固物を脱水・乾燥してゴムウエットマスターバッチを製造する工程(iii)及びゴムウエットマスターバッチにゴム配合剤を添加し、乾式混合する工程(iv)を有するゴム組成物の製造方法において、工程(i)中に、式(I)で表される化合物を添加し、その後、硫化モリブデンを添加する、ゴム組成物の製造方法。【選択図】なし
Bibliography:Application Number: JP20170234070