公开(公告)号：US10428187B2

公开(公告)日：2019-10-01

申请号：US15559141

申请日：2016-03-18

Applicant: BRIDGESTONE CORPORATION

Inventor： Yasuto Yanagisawa ,  Yukari Kanda ,  Shigenobu Waragai ,  Osamaru Matsuo

IPC: C08J3/215 ,  C08J3/22 ,  C08J3/205 ,  C08K3/04

Abstract: Provided is a method for producing a mixture, comprising a mixing step for mixing a slurry prepared by dispersing a filler containing carbon black and a rubber liquid prepared by dispersing or the like a rubber component. In the above producing method, the carbon black contained in the slurry has a surface average acidic functional group amount (μeq/m2) of 0.40 or more and less than 3.00; a pH of the slurry is 8 or more; the sum total of the solid matter concentrations of the slurry and the rubber liquid is 20% by mass or less; a mixing equipment used has one or more rotors disposed rotatably in a rotation axis direction and one or more stators disposed unrotatably in the rotation axis direction; the rotors and the stators have plural projections which are arranged circularly with the rotation axis set as the center; rings are formed concentrically by the projections in a single stage or a multistage; and the slurry and the rubber liquid are allowed to pass through a space between the rotors and the stators while the rotors rotate, whereby the mixing is carried out to produce the mixture.

公开(公告)号：US09932450B2

公开(公告)日：2018-04-03

申请号：US14525306

申请日：2014-10-28

Applicant: BRIDGESTONE CORPORATION

Inventor： Yasuto Yanagisawa

IPC: C08J3/22 ,  B01D33/35 ,  B01D33/44 ,  B01D33/04 ,  B01D33/64

CPC classification number: C08J3/22 ,  B01D33/04 ,  B01D33/35 ,  B01D33/44 ,  B01D33/646 ,  C08J2307/02 ,  C08K3/04 ,  C08L21/02

Abstract: Provided is a method of producing a wet master batch, including the step of: solid-liquid separating and dehydrating a coagulum slurry obtained by mixing a rubber latex with a carbon black slurry containing a carbon black dispersed in water and coagulating the mixture, the solid-liquid separating and dehydrating step including gravity filtering and vacuum filtering the coagulum slurry on a filtration filter and then pressurizing, by means of a pressurizer, the coagulum slurry on the outer peripheral surface of a drum, to thereby pressure dehydrate the coagulum slurry. Also provided is a solid-liquid separating and dehydrating apparatus for wet master batch production, which includes: a filtration filter; a filtration portion; a drum; and a pressurizer.