公开(公告)号：US20230113200A1

公开(公告)日：2023-04-13

申请号：US17908110

申请日：2021-03-02

Applicant: BOREALIS AG

Inventor： Frank Schröder ,  Timo Leinonen ,  Peter Denifl ,  Sascha Kaltenbacher ,  Bernhard Hagemann

IPC: C08F4/646 ,  C08F116/20 ,  C08F4/654 ,  C08F4/657

Abstract: The present invention relates to a process for producing a solid Ziegler-Natta catalyst component in the form of solid particles having a median particle size (D50vol) of 5 to 500 µm and the process comprising steps I. providing a solution of a Group 2 metal dihalide (1UPAC, Nomenclature of Inorganic Chemistry, 2005) by dissolving a solid Group 2 metal dihalide in an alcohol mixture comprising at least a monohydric alcohol (A1) of formula ROM, where R is selected from a hydrocarbyl group of 3 to 16 C atoms and an alcohol (A2) comprising in addition to the hydroxyl group another oxygen containing functional group not being a hydroxyl group, contacting the solution of the Group 2 metal dihalide of step I with a compound in a liquid form of a transition metal of Group 4 to 10, or of a lanthanide or actinide, preferably a transition metal of Group 4 to 6 of Periodic Table (1UPAC, Nomenclature of Inorganic Chemistry, 2005), and III. recovering the solid catalyst component, wherein the amount of Group 2 metal originating from Group 2 metal dihalide constitutes 100 % of the whole amount of the Group 2 metal used in the process for producing the solid Ziegler-Natta catalyst component.

公开(公告)号：US20180142068A1

公开(公告)日：2018-05-24

申请号：US15564345

申请日：2016-04-08

Applicant: BOREALIS AG

Inventor： Hermann Braun ,  Rebeca Reguillo Carmona ,  Sascha Kaltenbacher ,  Katja Klimke ,  Udo Muster ,  Hermann Prokschi

IPC: C08J3/12 ,  C08F210/06 ,  C08L23/14 ,  C08F236/06

CPC classification number: C08J3/12 ,  B29B7/48 ,  B29B7/726 ,  B29B7/728 ,  B29B7/845 ,  B29B7/88 ,  B29B9/06 ,  B29B9/12 ,  B29C48/05 ,  B29C48/297 ,  B29C48/767 ,  C08F210/06 ,  C08F236/06 ,  C08F255/02 ,  C08L23/14

Abstract: The present invention is directed to a process for producing a modified olefin polymer having increased melt strength in an extruder. The process comprising the steps of: (A) contacting a stream comprising particles of an olefin polymer with a vapour stream of a functionally unsaturated compound in vapour phase thereby producing a first mixed stream; (B) passing the first mixed stream to an extruder; (C) melting the polymer particles of the first mixed stream in the extruder; (D) introducing a stream of a free radical generator either into the first mixed stream or into the extruder; and (E) extruding the first mixed stream and the free radical generator at a temperature which is greater than the decomposition temperature of the free radical generator and the melting temperature of the olefin polymer but less than the decomposition temperature of the olefin polymer thereby producing the modified olefin polymer in the extruder.

公开(公告)号：US11028238B2

公开(公告)日：2021-06-08

申请号：US15564345

申请日：2016-04-08

Applicant: BOREALIS AG

Inventor： Hermann Braun ,  Rebeca Reguillo Carmona ,  Sascha Kaltenbacher ,  Katja Klimke ,  Udo Muster ,  Hermann Prokschi

IPC: C08J3/12 ,  B29C48/29 ,  C08F210/06 ,  C08L23/14 ,  B29B7/48 ,  C08F255/02 ,  B29B7/88 ,  B29B7/72 ,  B29B7/84 ,  B29B9/12 ,  B29C48/285 ,  B29C48/05 ,  B29C48/76 ,  C08F236/06 ,  B29B9/06

Abstract: The present invention is directed to a process for producing a modified olefin polymer having increased melt strength in an extruder. The process comprising the steps of: (A) contacting a stream comprising particles of an olefin polymer with a vapour stream of a functionally unsaturated compound in vapour phase thereby producing a first mixed stream; (B) passing the first mixed stream to an extruder; (C) melting the polymer particles of the first mixed stream in the extruder; (D) introducing a stream of a free radical generator either into the first mixed stream or into the extruder; and (E) extruding the first mixed stream and the free radical generator at a temperature which is greater than the decomposition temperature of the free radical generator and the melting temperature of the olefin polymer but less than the decomposition temperature of the olefin polymer thereby producing the modified olefin polymer in the extruder.