MY117441A - Processes for producing polyolefin composition - Google Patents

Processes for producing polyolefin composition

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Publication number
MY117441A
MY117441A MYPI20012769A MY117441A MY 117441 A MY117441 A MY 117441A MY PI20012769 A MYPI20012769 A MY PI20012769A MY 117441 A MY117441 A MY 117441A
Authority
MY
Malaysia
Prior art keywords
reactor
stage
concentration
polyolefin composition
saturated aliphatic
Prior art date
Application number
Inventor
Shinji Abe
Tomohiro Arase
Satoru Ohtani
Shotaro Matsuda
Original Assignee
Mitsui Chemicals Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsui Chemicals Inc filed Critical Mitsui Chemicals Inc
Publication of MY117441A publication Critical patent/MY117441A/en

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  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polymerisation Methods In General (AREA)

Abstract

THE PRESENT INVENTION INTENDS TO PROVIDE A METHOD OF PRODUCING A POLYOLEFIN COMPOSITION HAVING A NARROW COMPOSITION DISTRIBUTION AND HAVING NARROW MOLECULAR WEIGHT DISTRIBUTION, AND IS CHARACTERIZED IN THAT WHEN AT LEAST TWO OLEFINS ARE COPOLYMERIZED IN THE PRESENCE OF A TRANSITION METAL COMPOUND CATALYST USING AT LEAST TWO GAS PHASE FLUIDIZED BED REACTORS, A SATURATED ALIPHATIC HYDROCARBON IS ALLOWED TO EXIST IN EACH REACTOR IN A CONCENTRATION FROM 0.1 TO 30 MOL, AND THE RATIO OF THE CONCENTRATION (C2) OF A SATURATED ALIPHATIC HYDROCARBONIN A REACTOR OF A SECOND STAGE TO THE CONCENTRATION (C1) OF A SATURATED ALIPHATIC HYFROCARBON IN A REACTOR OF A FIRST STAGE (C²/C1) IS 0.13 OR MORE. FURTHER, THE PRESENT INVENTION INTENDS TO PROVIDE A METHOD OF PRODUCING A POLYOLEFIN COMPOSITION BY MULTI-STAGE POLYMERIZATION, WHICH CAN PREVENT SHEETING IN THE REACTOR AND CAN GIVE A POLYOLEFIN COMPOSITION STABLY WITH HIGH PRODUCTIVITY, AND IS CHARACTERIZED IN THAT A SATURATED ALIPHATIC HYDROCARBON IS ALLOWED TO EXIST IN A TRANSPORT LINE (25) FOR TRANSPORTING A POLYMER PARTICLE EXTRACTED FROM A FLUIDIZED BED REACTOR (11) IN THE PREVIOUS STAGE TO A FLUIDIZED BED REACTOR (21) IN THE SUBSEQUENT STAGE AT A CONCENTRATION FROM 0.1 TO 30 MOL
MYPI20012769 2000-07-03 2001-06-13 Processes for producing polyolefin composition MY117441A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000200527 2000-07-03

Publications (1)

Publication Number Publication Date
MY117441A true MY117441A (en) 2004-06-30

Family

ID=46850203

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI20012769 MY117441A (en) 2000-07-03 2001-06-13 Processes for producing polyolefin composition

Country Status (1)

Country Link
MY (1) MY117441A (en)

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