GB984113A - Polymerization process - Google Patents
Polymerization processInfo
- Publication number
- GB984113A GB984113A GB10090/61A GB1009061A GB984113A GB 984113 A GB984113 A GB 984113A GB 10090/61 A GB10090/61 A GB 10090/61A GB 1009061 A GB1009061 A GB 1009061A GB 984113 A GB984113 A GB 984113A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chromium oxide
- propylene
- catalyst
- supported chromium
- aluminium
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F110/00—Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F110/04—Monomers containing three or four carbon atoms
- C08F110/06—Propene
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Abstract
Polypropylene is made by forming a slurry of a supported chromium oxide catalyst in liquid propylene, adding an organoaluminium compound containing at least two hydrocarbon radicals, and subjecting the resulting mixture, with or without the addition of further propylene, to polymerization conditions whilst maintaining the propylene in the liquid phase. The supported chromium oxide prior to use as a catalyst, is preferably calcined at a temperature of from 200 DEG to 600 DEG C., and then vacuum-treated at a pressure below 100 mms. of mercury. The support for the chromium oxide may be activated carbon, alumina, magnesia, titania, zirconia, silica, or clays. The exemplified aluminium compound is aluminium triisobutyl. The polymer may be fractionated, using n-hexane. Specification 786,014 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US1615260A | 1960-03-21 | 1960-03-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB984113A true GB984113A (en) | 1965-02-24 |
Family
ID=21775665
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB10090/61A Expired GB984113A (en) | 1960-03-21 | 1961-03-20 | Polymerization process |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE601546A (en) |
FR (1) | FR1284344A (en) |
GB (1) | GB984113A (en) |
NL (1) | NL262572A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6339136B1 (en) | 1996-11-15 | 2002-01-15 | Borealis A/S | Process for making propylene homo or copolymers |
-
0
- BE BE601546D patent/BE601546A/xx unknown
- NL NL262572D patent/NL262572A/xx unknown
-
1961
- 1961-03-20 FR FR856158A patent/FR1284344A/en not_active Expired
- 1961-03-20 GB GB10090/61A patent/GB984113A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6339136B1 (en) | 1996-11-15 | 2002-01-15 | Borealis A/S | Process for making propylene homo or copolymers |
Also Published As
Publication number | Publication date |
---|---|
FR1284344A (en) | 1962-02-09 |
DE1520945B2 (en) | 1972-07-13 |
DE1520945A1 (en) | 1970-01-29 |
NL262572A (en) | |
BE601546A (en) |
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