Patent ID: 9616712
Date: 2017-04-11
CPC Classifications: B60C,C08J,C08K,C08L

Claim:
1. A process for producing a rubber wet master batch comprising: a step for taking out a non-drying carbon black granulated substance from an outlet of a wet granulating equipment for producing carbon black; a step for preparing a slurry (A) by using a filler containing the non-drying carbon black granulated substance; and a step for mixing the slurry (A), in which the filler containing the non-drying carbon black granulated substance is dispersed, with a rubber liquid (B), wherein a moisture content of the non-drying carbon black granulated substance is 30 to 65% by mass, and wherein a loss on heating of the non-drying carbon black granulated substance which is determined at 150 to 900° C. by thermogravimetric analysis (TGA) is 0.87 to 1.5% by mass, and a transmittance of toluene extract thereof is 90% or more.