GB984499A - Process for polymerizing butadiene - Google Patents
Process for polymerizing butadieneInfo
- Publication number
- GB984499A GB984499A GB4361563A GB4361563A GB984499A GB 984499 A GB984499 A GB 984499A GB 4361563 A GB4361563 A GB 4361563A GB 4361563 A GB4361563 A GB 4361563A GB 984499 A GB984499 A GB 984499A
- Authority
- GB
- United Kingdom
- Prior art keywords
- butyl phenol
- combinations
- cis
- butadiene
- catalyst
- 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
- C08F136/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
- C08F136/02—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
- C08F136/04—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
- C08F136/06—Butadiene
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
A polymerization catalyst, especially for producing rubbery butadiene polymers with a high cis 1,4-addition content, comprises (a) an organometallic compound R3Al, R2AlH or R2Mg wherein R is alkyl, cycloalkyl, aryl or combinations of these radicals, (b) a titanium di-, tri- or tetra-chloride or bromide, and (c) lithium iodide. Long lists of organometallic compounds and also specific catalyst component combinations are given. In the examples, butadiene is polymerized in toluene with a catalyst formed in situ comprising triisobutyl aluminium, TiCl4 and LiI, and the reaction is terminated with an isopropyl alcohol/butyl phenol solution of 2,21-methylene-bis-(4-methyl-6-tert-butyl phenol). The polymer may be recovered by steam stripping the solvent after the optional addition of an antioxidant or by precipitation with alcohols. The product may be blended with natural rubber, cis 1,4-polyisopropylene or polyethylene.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US24017262A | 1962-11-26 | 1962-11-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB984499A true GB984499A (en) | 1965-02-24 |
Family
ID=22905417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4361563A Expired GB984499A (en) | 1962-11-26 | 1963-11-05 | Process for polymerizing butadiene |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1255321B (en) |
| ES (1) | ES293316A1 (en) |
| GB (1) | GB984499A (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE607032A (en) * | 1960-08-08 |
-
1963
- 1963-11-05 GB GB4361563A patent/GB984499A/en not_active Expired
- 1963-11-08 ES ES293316A patent/ES293316A1/en not_active Expired
- 1963-11-20 DE DE1963P0033034 patent/DE1255321B/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| ES293316A1 (en) | 1964-06-16 |
| DE1255321B (en) | 1967-11-30 |
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