公开(公告)号：US20230312789A1

公开(公告)日：2023-10-05

申请号：US18022595

申请日：2021-09-27

Applicant: Borealis AG

Inventor： Noureddine Ajellal ,  Mohammad Al-haj Ali ,  Joy Jie Cheng ,  Elena Pomakhina ,  Andreas Albrecht ,  Pritish Pradipkumar Sinha

IPC: C08F210/16 ,  C08F2/00 ,  C08F2/06 ,  C08F4/6592 ,  C08F4/52 ,  C08F255/02 ,  C08F255/08

CPC classification number: C08F210/16 ,  C08F2/001 ,  C08F2/06 ,  C08F4/65927 ,  C08F4/52 ,  C08F255/02 ,  C08F255/08

Abstract: Ethylene-1-octene copolymer characterized by a density in the range of 850 kg/m3 to 930 kg/m3 measured according to ISO 1183-187, a melt flow rate MFR2 (190° C., 2.16 kg) in the range of from 0.3 g/10 min to 100 g/10 min measured according to ISO 1133, a MFR10/MFR2 of from 5.0 to 15.0, a Mw/Mn of from 2.0 to 5.0, 1.0 to below 20 vinyl unsaturation units/100,000 C atoms, more than 5.0 to 35 vinylidene unsaturation units/100,000 C atoms, more than 5.0 to 30 vinylene unsaturation units/100,000 C atoms, more than 15.0 to 60 trisubstituted unsaturation units/100,000 C atoms, 26 to 150 total unsaturation units/100,000 C atoms, wherein the total unsaturation units/100,000 C atoms is the sum of vinyl unsaturation units/100,000 C atoms, vinylidene unsaturation units/100,000 C atoms, vinylene unsaturation units/100,000 C atoms and trisubstituted unsaturation units/100,000 C atoms, an unsaturation degree for unsaturation types e) to h) according to formula (I) wherein a vinyl unsaturation degree is in the range of from 5.0 to 15.0%, a vinylene unsaturation degree is in the range of from 20.0 to 30.0%, and wherein the sum of the vinyl unsaturation degree and vinylidene unsaturation degree is at least 30.0% and up to 50.0%.









unsaturation
Type

⁢
degree
⁢


(
%
)


=





unsaturation
Type

⁢
units
/
100

,

000
⁢

C
⁢

atoms




total
⁢

unsaturation
⁢

units
/
100

,

000
⁢

C
⁢

atoms



*
100





(
I
)

公开(公告)号：US20220380498A1

公开(公告)日：2022-12-01

申请号：US17774967

申请日：2020-12-07

Applicant: Borealis AG

Inventor： Mohammad Al-haj Ali ,  Michiel Bergstra ,  Erik Eriksson ,  Sameer Vijay ,  Christof Wumitsch ,  Samuli Zitting ,  Henry Sleijster ,  Noureddine Ajellal

IPC: C08F210/16 ,  C08F4/659

Abstract: The present invention relates to a polymerization process, comprising: a) supplying a feed containing ethylene and at least one alpha-olefin having 3 to 12 carbon atoms in a hydrocarbon solvent to a polymerization reactor, b) contacting the feed of step a) in the reactor with a catalyst to form a reaction mixture containing an ethylene-alpha-olefin co-polymer, c) withdrawing the reaction mixture from the polymerization reactor as a reactor outlet stream which comprises the ethylene-alpha-olefin co-polymer, unreacted monomer and comonomer, catalyst, and hydrocarbon solvent, d) heating the reactor outlet stream to a temperature which is at least 5° C. higher than the temperature of the reaction mixture at the outlet of the reactor for a time period of between 1 and 250 seconds in order to de-activate the polymerization catalyst, and e) separating hydrocarbon solvent, monomer and comonomer from the reactor outlet stream and recycling it back to the polymerization reactor without further purification steps.