MY117441A - Processes for producing polyolefin composition - Google Patents
Processes for producing polyolefin compositionInfo
- 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
Links
- 229920000098 polyolefin Polymers 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 3
- 229920006395 saturated elastomer Polymers 0.000 abstract 4
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 abstract 2
- 150000001336 alkenes Chemical class 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 238000006116 polymerization reaction Methods 0.000 abstract 1
- 150000003623 transition metal compounds Chemical class 0.000 abstract 1
Landscapes
- 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
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) |
-
2001
- 2001-06-13 MY MYPI20012769 patent/MY117441A/en unknown
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