公开(公告)号：US20250034298A1

公开(公告)日：2025-01-30

申请号：US18915581

申请日：2024-10-15

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Jacobus Christinus Josephus Franciscus TACX ,  Diego Mauricio CASTANEDA ZUNIGA ,  Peter NEUTEBOOM

IPC: C08F210/02

Abstract: The invention relates to a process for the preparation of low density polyethylene (LDPE) wherein the polymerisation takes place in a tubular reactor at peak temperatures ranging from 180° C. to 350° C. and at pressures ranging from 150 to 350 MPa and wherein the total effective length of the polymerisation reactor divided by the number of reaction zones is in the range from 230 to 350 m.

公开(公告)号：US20210395410A1

公开(公告)日：2021-12-23

申请号：US17292515

申请日：2019-12-03

Applicant: SABIC Global Technologies B.V.

Inventor： Jérôme VACHON ,  Jonathan TELLERS ,  Peter NEUTEBOOM ,  Maria SOLIMAN ,  Roberta PINALLI ,  Enrico DALCANALE

IPC: C08F210/02

Abstract: Terpolymers that include a hydrocarbon unit, an acetoacetate terminated unit and a hydroxy-terminated unit are described. Vitrimers made from these terpolymers are also described.

公开(公告)号：US20220259340A1

公开(公告)日：2022-08-18

申请号：US17627433

申请日：2020-07-16

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Jerome VACHON ,  Peter NEUTEBOOM ,  Jonathan TELLERS

IPC: C08F210/02 ,  C07C57/04

Abstract: The invention relates to an ehtylene copolymer obtained by copolymerizing ethylene and an ion pair compound consisting of a cation of formula (I) and an anion selected from formulas (II), (III), (IV) and (V), wherein (I) where R1=H or C1-C10 alkyl; X=O or NH; R2=C1-C40 alkyl; R3, R4=H or C1-C10 alkyl which can be connected through a cyclic structure, R5=H or C1-C20, (II) (III) (IV) (V) where R6, R7, R9=H or C1-C10 alkyl; R8, R10=C1-C40 alkyl; Y, V, W=O or NH; n=1 to 20; Z=—SO3 or —C(O)O.

公开(公告)号：US20210388129A1

公开(公告)日：2021-12-16

申请号：US17287685

申请日：2019-10-29

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Jacobus Christinus Josephus Franciscus TACX ,  Diego Mauricio CASTANEDA ZUNIGA ,  Peter NEUTEBOOM

IPC: C08F210/02

Abstract: The invention relates to a process for the preparation of low density polyethylene (LDPE) wherein the polymerisation takes place in a tubular reactor at peak temperatures ranging from 180° C. to 350° C. and at pressures ranging from 150 to 350 MPa and wherein the total effective length of the polymerisation reactor divided by the number of reaction zones is in the range from 230 to 350 m.