GB1459642A - Process for the preparation of high molecular weight high unsaturation isoolefin conjugated diene copolymers - Google Patents
Process for the preparation of high molecular weight high unsaturation isoolefin conjugated diene copolymersInfo
- Publication number
- GB1459642A GB1459642A GB1477774A GB1477774A GB1459642A GB 1459642 A GB1459642 A GB 1459642A GB 1477774 A GB1477774 A GB 1477774A GB 1477774 A GB1477774 A GB 1477774A GB 1459642 A GB1459642 A GB 1459642A
- Authority
- GB
- United Kingdom
- Prior art keywords
- molecular weight
- conjugated diene
- copolymerization
- preparation
- isoolefin
- 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)
- Polymerisation Methods In General (AREA)
- Polymerization Catalysts (AREA)
Abstract
1459642 Isoolefin-conjugated diene copolymerization EXXON RESEARCH & ENG CO 3 April 1974 [6 April 1973] 14777/74 Heading C3P Isoolefins and conjugated dienes are copolymerized at a temperature below - 100‹ C. and in the presence of a hydrocarbylaluminium dihalide catalyst. The copolymerization is carried out as a solution process, in the presence of 5 to 40 volume per cent (based on solvent and monomers) of an inert solvent and to a conversion level of 2 to 20% to produce a polymer having a number average molecular weight of at least 120,000 and an unsaturation (i.e. diene) level of 8 to 40 mole per cent. Examples refer to the copolymerization of isobutylene with isoprene or cyclopentadiene or a mixture thereof in the presence of methyl cyclohexane or heptane as cosolvent and of EtAlCl 2 , MeAlCl 2 , iBuAlCl 2 , EtAlBr 2 or (comparative) EtAlI 2 .
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00348678A US3856763A (en) | 1971-06-08 | 1973-04-06 | Process for the preparation of high molecular weight, high unsaturation isobutylene-conjugated diene copolymers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1459642A true GB1459642A (en) | 1976-12-22 |
Family
ID=23369072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1477774A Expired GB1459642A (en) | 1973-04-06 | 1974-04-03 | Process for the preparation of high molecular weight high unsaturation isoolefin conjugated diene copolymers |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5244598B2 (en) |
| BE (1) | BE813450A (en) |
| CA (1) | CA1026045A (en) |
| DE (1) | DE2416866A1 (en) |
| FR (1) | FR2224494B1 (en) |
| GB (1) | GB1459642A (en) |
| NL (1) | NL7404758A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1076227B (en) * | 1977-01-17 | 1985-04-27 | Sir Soc Italiana Resine Spa | PROCEDURE FOR THE PREPARATION OF CYCLISED POLYDENES |
| JPS58195800A (en) * | 1982-05-10 | 1983-11-15 | 株式会社東芝 | Induction missile |
-
1974
- 1974-04-03 GB GB1477774A patent/GB1459642A/en not_active Expired
- 1974-04-04 CA CA196,796A patent/CA1026045A/en not_active Expired
- 1974-04-05 FR FR7412189A patent/FR2224494B1/fr not_active Expired
- 1974-04-06 JP JP3935774A patent/JPS5244598B2/ja not_active Expired
- 1974-04-06 DE DE19742416866 patent/DE2416866A1/en active Pending
- 1974-04-08 NL NL7404758A patent/NL7404758A/xx unknown
- 1974-04-08 BE BE142974A patent/BE813450A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2224494B1 (en) | 1979-02-16 |
| DE2416866A1 (en) | 1974-10-17 |
| JPS5244598B2 (en) | 1977-11-09 |
| CA1026045A (en) | 1978-02-07 |
| JPS508880A (en) | 1975-01-29 |
| NL7404758A (en) | 1974-10-08 |
| BE813450A (en) | 1974-10-08 |
| FR2224494A1 (en) | 1974-10-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |