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1. WO2016191076 - PROCESS TO FORM ETHYLENE/ALPHA-OLEFIN INTERPOLYMERS

Publication Number WO/2016/191076
Publication Date 01.12.2016
International Application No. PCT/US2016/031408
International Filing Date 09.05.2016
IPC
C08F 210/18 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
210Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
16Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
18with non-conjugated dienes, e.g. EPT rubbers
C08F 4/64 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
4Polymerisation catalysts
42Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
44selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths, or actinides
60together with refractory metals, iron group metals, platinum group metals, manganese, technetium, rhenium, or compounds thereof
62Refractory metals or compounds thereof
64Titanium, zirconium, hafnium, or compounds thereof
C08F 2/06 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
2Processes of polymerisation
04Polymerisation in solution
06Organic solvent
CPC
C08F 2/06
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
2Processes of polymerisation
04Polymerisation in solution
06Organic solvent
C08F 210/16
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
210Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
16Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
C08F 210/18
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
210Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
16Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
18with non-conjugated dienes, e.g. EPT rubbers
C08F 236/20
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
236Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
02the radical having only two carbon-to-carbon double bonds
20unconjugated
C08F 2400/02
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
2400Characteristics for processes of polymerization
02Control or adjustment of polymerization parameters
C08F 2500/03
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
2500Characteristics or properties of obtained polyolefins; Use thereof
03Narrow molecular weight distribution, i.e. Mw/Mn < 3
Applicants
  • DOW GLOBAL TECHNOLOGIES LLC [US]/[US]
Inventors
  • EWART, Sean W.
  • BROWN, Susan G.
  • FERRARI, Daniela
  • MADENJIAN, Edward O.
  • BRENNAN, Gregory J.
Agents
  • TERRY, Jane
Priority Data
62/167,50028.05.2015US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PROCESS TO FORM ETHYLENE/ALPHA-OLEFIN INTERPOLYMERS
(FR) PROCÉDÉ POUR FORMER DES INTERPOLYMÈRES D'ÉTHYLÈNE/ALPHA-OLÉFINE
Abstract
(EN)
The invention provides a process to form an ethylene/α-olefin interpolymer, comprising at least the following steps A) through C): A) polymerizing, in at least one reactor, at least one reaction mixture comprising ethylene and the α-olefin, in a solution polymerization, and in the presence of at least the following components I), II) and III): I) at least one compound of Structure 1, as described herein; II) at least one co-catalyst, as described herein; III) at least one compound of Structure 2, as described herein; B) separating the final polymer solution into at least a polymer-rich solution and a polymer-free solution; and optionally, at least a portion of the polymer-free solution is recycled back to the reactor; C) maintaining the level of the at least one compound of Structure 2 in the at least one reactor, from 100 ppm to 10,000 ppm, as described herein.
(FR)
L'invention concerne un procédé pour former un interpolymère d'éthylène/α-oléfine, comprenant au moins les étapes suivantes A) à C) : A) polymériser, dans au moins un réacteur, au moins un mélange réactionnel comprenant de l'éthylène et l'α-oléfine, dans une polymérisation en solution et en présence d'au moins les constituants suivants I), II) et III) : I) au moins un composé de structure 1, tel que décrit dans la description ; II) au moins un cocatalyseur, tel que décrit dans la description ; III) au moins un composé de structure 2, tel que décrit dans la description ; B) séparer la solution finale de polymère en au moins une solution riche en polymère et une solution exempte de polymère ; et éventuellement, au moins une partie de la solution exempte de polymère est recyclée vers le réacteur ; C) maintenir le niveau dudit au moins un composé de structure 2 dans ledit au moins un réacteur, de 100 ppm à 10.000 ppm, comme décrit dans la description.
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