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1. WO1993002116 - PROCESS FOR THE PREPARATION OF PARTICLE FORM ETHYLENE-PROPYLENE COPOLYMERS

Publication Number WO/1993/002116
Publication Date 04.02.1993
International Application No. PCT/FI1991/000219
International Filing Date 17.07.1991
Chapter 2 Demand Filed 25.01.1993
IPC
C08F 210/16 2006.1
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 2006.1
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
CPC
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
Applicants
  • NESTE OY [FI]/[FI] (AllExceptUS)
  • SEPPÄLÄ, Jukka, Veli [FI]/[FI] (UsOnly)
  • KOIVUMÄKI, Jari, Juhani [FI]/[FI] (UsOnly)
Inventors
  • SEPPÄLÄ, Jukka, Veli
  • KOIVUMÄKI, Jari, Juhani
Agents
  • BERGGREN OY AB
Priority Data
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) PROCESS FOR THE PREPARATION OF PARTICLE FORM ETHYLENE-PROPYLENE COPOLYMERS
(FR) PROCEDE DE PREPARATION DE COPOLYMERES D'ETHYLENE-PROPYLENE SOUS FORME PARTICULAIRE
Abstract
(EN) The present invention relates to a process for the preparation of an elastomeric ethylene-propylene copolymer which is obtained in the form of particles which do not tend to adhere to each other nor on the parts of the polymerization reactor or the treatment apparatus during the later treatment. The copolymer is prepared by polymerizing with the aid of a Ziegler-Natta catalyst system ethylene in a liquid propylene at a low terperature below 15 °C. The particle form nature of the product is further pronounced when the content of the ethylene units in the copolymer obtained is more than 35 %, preferably more than 50 %.
(FR) L'invention concerne un procédé de préparation d'un copolymère d'éthylène-propylène élastomère obtenu sous forme de particules ne tendant pas à coller les une aux autres ni sur les parties du réacteur de polymérisation ou de l'appareil de traitement pendant le traitement ultérieur. On prépare le copolymère par polymérisation d'éthylène dans un propylène liquide à une température faible inférieure à 15 °C, à l'aide d'un système catalytique Ziegler-Natta. La nature du produit sous forme de particules est plus prononcée lorsque la teneur en unités d'éthylène dans le copolymère obtenu est supérieure à 35 %, de préférence supérieure à 50 %.
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