GB993599A - Improvements in the purification of alpha-olefin polymers - Google Patents
Improvements in the purification of alpha-olefin polymersInfo
- Publication number
- GB993599A GB993599A GB4089963A GB4089963A GB993599A GB 993599 A GB993599 A GB 993599A GB 4089963 A GB4089963 A GB 4089963A GB 4089963 A GB4089963 A GB 4089963A GB 993599 A GB993599 A GB 993599A
- Authority
- GB
- United Kingdom
- Prior art keywords
- copolymer
- solution
- copolymers
- vanadium
- 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
- C08F6/00—Post-polymerisation treatments
- C08F6/02—Neutralisation of the polymerisation mass, e.g. killing the catalyst also removal of catalyst residues
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)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Abstract
Catalyst residues of vanadium and organo-aluminium compounds contained in an alphaolefin hydrocarbon copolymer are removed from a solution of the copolymer by mixing the solution at a temperature between 0 DEG and 200 DEG C. for no more than one minute under conditions of high shear agitation with sufficient of an aqueous mineral acid solution containing 0.01 to 0.8% acid by weight to give a ratio of equivalents of acid to total gram atoms of vanadium and aluminium of at least 1: 1, and separating the resulting aqueous phase containing the catalyst residue from the copolymer solution. The other monomeric unit in the copolymer may be derived from another alpha-olefin or an olefin containing more than one carbon-carbon double bond. The Specification contains long lists of copolymers and catalyst components. Exemplified copolymers are of ethylene/propylene/and 1,4-hexadiene. The catalyst residues in these copolymers is derived from diisobutyl aluminium monochloride and vanadium oxytrichloride. The solvents may be hydrocarbons or halogenated hydrocarbons.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US23290162A | 1962-10-24 | 1962-10-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB993599A true GB993599A (en) | 1965-05-26 |
Family
ID=22875058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4089963A Expired GB993599A (en) | 1962-10-24 | 1963-10-16 | Improvements in the purification of alpha-olefin polymers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB993599A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4992529A (en) * | 1987-10-29 | 1991-02-12 | Shell Oil Company | Method for separating metal contaminants from organic polymers |
-
1963
- 1963-10-16 GB GB4089963A patent/GB993599A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4992529A (en) * | 1987-10-29 | 1991-02-12 | Shell Oil Company | Method for separating metal contaminants from organic polymers |
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