GB1063319A - Preparation of ethylene-propylene-di-cyclopentadiene elastomers - Google Patents
Preparation of ethylene-propylene-di-cyclopentadiene elastomersInfo
- Publication number
- GB1063319A GB1063319A GB3205465A GB3205465A GB1063319A GB 1063319 A GB1063319 A GB 1063319A GB 3205465 A GB3205465 A GB 3205465A GB 3205465 A GB3205465 A GB 3205465A GB 1063319 A GB1063319 A GB 1063319A
- Authority
- GB
- United Kingdom
- Prior art keywords
- propylene
- ethylene
- per cent
- 2alcl
- dicyclopentadiene
- 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
- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F210/16—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
- C08F210/18—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers with non-conjugated dienes, e.g. EPT rubbers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
Abstract
An elastomer of ethylene-propylene-dicyclopentadiene is made by copolymerizing a mixture of the monomers, in an inert liquid hydrocarbon solvent, with a catalyst system comprising (1) a halogenated vanadyl ester of the formula O=V(OR)mXn and (2) an aluminium compound of the formula RmAlXn where R is a Cl-12 alkyl radical, X is Cl, Br, or I, and m is 1 or 2, and m+n=3, and the mol. ratio of Al to V is between 4 to 1 and 20 to 1. The elastomer recovered contains 62 to 33 wt. per cent of ethylene, 33 to 62 wt. per cent of propylene, and 5 to 20 wt. per cent of dicyclopentadiene. The catalyst, monomers, and diluent are fed continuously to the reaction zone. Hydrogen may be present. Exemplified vanadium compounds are VOCl(OC2H5)2 and VOCl2OC2H5. Exemplified Al compounds are (isobutyl)2AlCl, C2H5AlCl2, (C2H5)3Al2Cl3, and (C2H5)2AlCl. The terpolymers are recovered by known methods and vulcanized by known techniques.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US44525465A | 1965-04-02 | 1965-04-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1063319A true GB1063319A (en) | 1967-03-30 |
Family
ID=23768186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3205465A Expired GB1063319A (en) | 1965-04-02 | 1965-07-27 | Preparation of ethylene-propylene-di-cyclopentadiene elastomers |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE669516A (en) |
| GB (1) | GB1063319A (en) |
| NL (1) | NL6511041A (en) |
-
1965
- 1965-07-27 GB GB3205465A patent/GB1063319A/en not_active Expired
- 1965-08-24 NL NL6511041A patent/NL6511041A/xx unknown
- 1965-09-10 BE BE669516D patent/BE669516A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE669516A (en) | 1965-12-31 |
| NL6511041A (en) | 1966-10-03 |
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