GB847733A - Improvements in and relating to the purification of olefin polymers - Google Patents
Improvements in and relating to the purification of olefin polymersInfo
- Publication number
- GB847733A GB847733A GB20937/58A GB2093758A GB847733A GB 847733 A GB847733 A GB 847733A GB 20937/58 A GB20937/58 A GB 20937/58A GB 2093758 A GB2093758 A GB 2093758A GB 847733 A GB847733 A GB 847733A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polymer
- complex
- alcohol
- acid
- olefin
- 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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Olefin polymers containing residual metal catalyst residues are purified by contacting the olefin polymer at an elevated temperature, e.g. 40-150 DEG C, and in the absence of water, with an alcohol containing at least 2 carbon atoms, and then extracting the treated polymer with an aqueous solution of an alkali metal hydroxide which has a pH of at least 10 and contains a compound which can form a complex with the metal or metals and which complex is soluble in the alkaline solution and subsequently recovering the polymer. The olefin polymer may be treated with dry air or oxygen before or during the treatment with the alcohol. The preferred alcohol is ethanol. The compound which can form a complex may be an alkali metal tartrate, 2-ethyl-hexanediol-1,3, oxalic acid, gluconic acid, glucose, mannitol, glycollic acid, or ethylene diamine tetra-acetic acid. The olefin polymer may be polyethylene, polypropylene, or poly-butylene. The purified polymer may be used for making shaped articles. Specifications 799,392, 799,823 and 801,031 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL847733X | 1957-07-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB847733A true GB847733A (en) | 1960-09-14 |
Family
ID=19845230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB20937/58A Expired GB847733A (en) | 1957-07-01 | 1958-06-30 | Improvements in and relating to the purification of olefin polymers |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE569005A (en) |
| GB (1) | GB847733A (en) |
-
0
- BE BE569005D patent/BE569005A/xx unknown
-
1958
- 1958-06-30 GB GB20937/58A patent/GB847733A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE569005A (en) |
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