GB1028399A - Polymerisation of isobutene - Google Patents
Polymerisation of isobuteneInfo
- Publication number
- GB1028399A GB1028399A GB2234164A GB2234164A GB1028399A GB 1028399 A GB1028399 A GB 1028399A GB 2234164 A GB2234164 A GB 2234164A GB 2234164 A GB2234164 A GB 2234164A GB 1028399 A GB1028399 A GB 1028399A
- Authority
- GB
- United Kingdom
- Prior art keywords
- catalyst
- isobutene
- reactor
- mixed
- polymerisation
- 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
- C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Polyisobutene is made by polymerizing isobutene in a hydrocarbon solution in the presence as catalyst of aluminium ethyl dichloride, and under adiabatic conditions and with laminar flow of the reactants in the reactor. The solutions of monomer and catalyst may be cooled and mixed immediately before introduction into the reactor. The catalyst may be mixed with AlCl3. The isobutene used is generally obtained from the C4 fraction of an olefinic cracking gas by extraction with H2SO4, followed by rectification and contains minor amounts of other C2, C3 and C4 hydrocarbons. Polymers of molecular weight around 2,000,000 are obtained by effecting the polymerization at low temperatures, e.g. about -100 DEG C. The Specification includes a flow diagram of a continuous method of carrying out the process.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT1132163 | 1963-05-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1028399A true GB1028399A (en) | 1966-05-04 |
Family
ID=11135054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2234164A Expired GB1028399A (en) | 1963-05-31 | 1964-05-29 | Polymerisation of isobutene |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE648645A (en) |
| GB (1) | GB1028399A (en) |
| NL (1) | NL141209B (en) |
-
1964
- 1964-05-15 NL NL6405452A patent/NL141209B/en unknown
- 1964-05-29 BE BE648645A patent/BE648645A/xx unknown
- 1964-05-29 GB GB2234164A patent/GB1028399A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL141209B (en) | 1974-02-15 |
| NL6405452A (en) | 1964-12-01 |
| DE1520390B2 (en) | 1972-10-26 |
| DE1520390A1 (en) | 1970-01-22 |
| BE648645A (en) | 1964-11-30 |
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