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1. WO1996039450 - PROCESS FOR TRANSITIONING BETWEEN INCOMPATIBLE POLYMERIZATION CATALYSTS

Publication Number WO/1996/039450
Publication Date 12.12.1996
International Application No. PCT/US1996/007974
International Filing Date 30.05.1996
Chapter 2 Demand Filed 03.01.1997
IPC
C08F 10/00 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
10Homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
CPC
C08F 10/00
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
10Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
C08F 2410/05
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
2410Catalyst preparation
05Transitioning, i.e. transition from one catalyst to another with use of a deactivating agent
Y10S 526/901
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
526Synthetic resins or natural rubbers -- part of the class 520 series
901Monomer polymerized in vapor state in presence of transition metal containing catalyst
Applicants
  • EXXON CHEMICAL PATENTS INC. [US]/[US]
Inventors
  • MUHLE, Michael, Elroy
  • AGAPIOU, Agapios, Kyriacos
  • RENOLA, Gary, Thomas
Agents
  • WOLFS, Denise, Y.
Priority Data
08/461,79905.06.1995US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PROCESS FOR TRANSITIONING BETWEEN INCOMPATIBLE POLYMERIZATION CATALYSTS
(FR) PROCEDE SERVANT A EFFECTUER UNE TRANSITION ENTRE DES CATALYSEURS DE POLYMERISATION INCOMPATIBLES
Abstract
(EN)
This invention relates to a process for transitioning between polymerization catalyst systems which are incompatible with each other. Particularly, the invention relates to a process for transitioning from an olefin polymerization reaction utilizing a traditional Ziegler-Natta catalyst system to an olefin polymerization reaction utilizing a metallocene catalyst system.
(FR)
L'invention concerne un procédé servant à effectuer une transition entre des catalyseurs de polymérisation présentant une incompatibilité réciproque. L'invention concerne, en particulier, un procédé servant à effectuer une transition depuis une réaction de polymérisation d'oléfines mettant en application un catalyseur classique de Ziegler Natta à une réaction de polymérisation d'oléfines mettant en application un catalyseur en alliage organométallique.
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