PROCESS FOR PRODUCING AN ELASTOMERIC COMPOUND

    公开(公告)号:EP3359361A1

    公开(公告)日:2018-08-15

    申请号:EP16815649.5

    申请日:2016-11-22

    发明人: PESSINA, Roberto

    摘要: Process for producing an elastomeric compound (108) comprising at least one elastomeric polymer (102), a silica-based reinforcement filler (103) and at least one silane coupling agent (104), the process comprising: - providing a batch mixer (101) comprising a mixing chamber, a pair of rotors housed in the mixing chamber and a piston arranged above the rotors and movable to and from the pair of rotors; - feeding said batch mixer with the above components; - mixing, in said batch mixer and for a first predetermined time interval, said components; - completely unloading said batch of intermediate compound (105) from said batch mixer; - providing a twin-screw conical mixer (201) having a mixing chamber (202) provided with an inlet mouth (203) and an outlet mouth (204), wherein the mixing chamber houses two conical screws (205); - feeding said twin-screw conical mixer with said batch of intermediate compound; - mixing said intermediate compound in said twin-screw conical mixer; - unloading said elastomeric compound from the twin-screw conical mixer.