公开(公告)号：WO2022090005A1

公开(公告)日：2022-05-05

申请号：PCT/EP2021/078972

申请日：2021-10-19

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： SCHIPPER, Ronald, Julianus, Peter ,  GREIN, Christelle Marie Héléne ,  RODRIGUEZ IGELSIAS, Cristina

IPC: B29C48/05 ,  B29C48/385 ,  B29C48/505 ,  B29C48/76 ,  B29B7/42 ,  B29B7/60 ,  B29B7/74 ,  B29B7/86 ,  C08L23/12 ,  C08L23/14 ,  B29B9/06

Abstract: Compounding extruder for producing a propylene-based polymer composition, comprising a) a melting section (100) comprising ai) a first elongated cylindrical tube having an end portion having a first inlet port (101) and an end portion having a first outlet port (102), and aii) a first screw arranged in the first elongated cylindrical tube and having a first length L1, a first outer screw diameter Do1 and a first inner screw diameter Di1, b) a mixing section (200) comprising bi) a second elongated cylindrical tube having an end portion having a second inlet port (201), an end portion having a second outlet port (202) and a side inlet port (204, 205, 206) between the second inlet port and the second outlet port, and bii) a second screw arranged in the second elongated cylindrical tube and having a second length L2, a second outer screw diameter Do2 and a second inner screw diameter Di2, wherein the first screw and the second screw are operable at different screw speeds, wherein Do1 is 0.82 to 1.2 x Do2.