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1. (WO1992019659) A LARGE-PORE POLYOLEFIN, A METHOD FOR ITS PRODUCTION AND A PROCATALYST CONTAINING A TRANSESTERIFICATION PRODUCT OF A LOWER ALCOHOL AND A PHTHALIC ACID ESTER
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1992/019659 International Application No.: PCT/FI1992/000083
Publication Date: 12.11.1992 International Filing Date: 23.03.1992
Chapter 2 Demand Filed: 02.12.1992
IPC:
C08F 10/00 (2006.01) ,C08F 110/06 (2006.01)
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
10
Homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
110
Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
04
Monomers containing three or four carbon atoms
06
Propene
Applicants:
NESTE OY [FI/FI]; P.O. Box 310 SF-06101 Porvoo, FI (AllExceptUS)
GAROFF, Thomas [FI/FI]; FI (UsOnly)
LEINONEN, Timo [FI/FI]; FI (UsOnly)
LISKOLA, Eero [FI/FI]; FI (UsOnly)
Inventors:
GAROFF, Thomas; FI
LEINONEN, Timo; FI
LISKOLA, Eero; FI
Agent:
BERGGREN OY AB; P.O. Box 16 SF-00101 Helsinki, FI
Priority Data:
91226409.05.1991FI
Title (EN) A LARGE-PORE POLYOLEFIN, A METHOD FOR ITS PRODUCTION AND A PROCATALYST CONTAINING A TRANSESTERIFICATION PRODUCT OF A LOWER ALCOHOL AND A PHTHALIC ACID ESTER
(FR) POLYOLEFINE A PORES LARGES, PROCEDE DE PRODUCTION DE CETTE POLYOLEFINE ET PROCATALYSEUR CONTENANT UN PRODUIT DE TRANSESTERIFICATION ENTRE UN ALCOOL INFERIEUR ET UN ESTER D'ACIDE PHTALIQUE
Abstract:
(EN) The invention relates to a method for the preparation of polyolefins by polymerizing olefin by using a procatalyst composition prepared by bringing together magnesium chloride, a lower alcohol, a titanium compound, and phthalic acid ester. The invention also relates to the said procatalyst composition. The invention has succeeded in lowering the concentrations of titanium and phthalic acid ester in the catalyst, and thereby also in the polyolefin, and at the same time in preparing large-pore polyolefin, which is important for certain purposes. These properties have been obtained by using a procatalyst of the said type, in the preparation of which a transesterification has been performed between the lower alcohol and the phthalic acid ester, and the phthalic acid ester selected for the transesterification is one the alkoxy group of which has at minimum 10 carbon atoms.
(FR) L'invention se rapporte à un procédé servant à la préparation de polyoléfines, qui consiste à polymériser une oléfine en utilisant une composition de procatalyseur qu'on a préparée en réunissant du chlorure de magnésium, un alcool inférieur, un composé de titane et un ester d'acide phtalique. L'invention se rapporte également à cette composition de procatalyseur. Dans cette invention, on a réussi à abaisser les concentrations de titane et d'ester d'acide phtalique dans le catalyseur, et par conséquent également dans la polyoléfine, et on a réussi en même temps à préparer des polyoléfines à pores larges, dont la présence est importante pour certains usages. Il a été possible d'obtenir ces propriétés en utilisant un procatalyseur de ce type pour la préparation duquel on a réalisé une transestérification entre l'alcool inférieur et l'ester d'acide phtalique, et en choisissant pour la transestérification un ester d'acide phtalique dont le groupe alcoxy contient au minimum 10 atomes de carbone.
Designated States: CA, JP, NO, US
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, MC, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
NO19934042EP0586389US5710229CA2109210DE000069223051